Home |
Search |
Today's Posts |
#1
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
Thanks in advance for your help.
Does anyone have some VBA code that will unmute the sound for the Windows Volume control using Excel? I read some stuff in Walkenbach's book about displaying stuff from the Control Panel within Excel using windows API calls but I didn't see anything about changing the volume settings. Thanks again. |
#2
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
Hi
See if you can trim this down to something readable <g: http://support.microsoft.com/default...b;en-us;178456 HTH. Best wishes Harald "Mike" skrev i melding ... Thanks in advance for your help. Does anyone have some VBA code that will unmute the sound for the Windows Volume control using Excel? I read some stuff in Walkenbach's book about displaying stuff from the Control Panel within Excel using windows API calls but I didn't see anything about changing the volume settings. Thanks again. |
#3
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
This toggles the mute control
On Error Resume Next Set oShell = AppActivate("Volume control") If oShell Is Nothing Then Set oShell = CreateObject("WScript.Shell") End If oShell.run"Sndvol32" WScript.Sleep 1500 oShell.SendKeys"{TAB 2} " -- HTH RP (remove nothere from the email address if mailing direct) "Mike" wrote in message ... Thanks in advance for your help. Does anyone have some VBA code that will unmute the sound for the Windows Volume control using Excel? I read some stuff in Walkenbach's book about displaying stuff from the Control Panel within Excel using windows API calls but I didn't see anything about changing the volume settings. Thanks again. |
#4
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
Reading the current state of the 'Master Mute' checkbox is a trifle complicated :( see Harald's link.. But in addition to Bob's solution of shelling to SndVol.. If you're working in Win2k/XP then Mute Toggling and VolumeUp and Down can easily be done via the keyboard.. Option Explicit Const VK_VOLUME_MUTE = &HAD 'Windows 2000/XP: Volume Mute key Const VK_VOLUME_DOWN = &HAE 'Windows 2000/XP: Volume Down key Const VK_VOLUME_UP = &HAF 'Windows 2000/XP: Volume Up key Private Declare Sub keybd_event Lib "user32" ( _ ByVal bVk As Byte, ByVal bScan As Byte, _ ByVal dwFlags As Long, ByVal dwExtraInfo As Long) Sub VolUp() keybd_event VK_VOLUME_UP, 0, 1, 0 keybd_event VK_VOLUME_UP, 0, 3, 0 End Sub Sub VolDown() keybd_event VK_VOLUME_DOWN, 0, 1, 0 keybd_event VK_VOLUME_DOWN, 0, 3, 0 End Sub Sub VolToggle() keybd_event VK_VOLUME_MUTE, 0, 1, 0 End Sub -- keepITcool | www.XLsupport.com | keepITcool chello nl | amsterdam Mike wrote : Thanks in advance for your help. Does anyone have some VBA code that will unmute the sound for the Windows Volume control using Excel? I read some stuff in Walkenbach's book about displaying stuff from the Control Panel within Excel using windows API calls but I didn't see anything about changing the volume settings. Thanks again. |
#5
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
gentlemenz...
Habeus Codum Per Volumum Mutum.. the ONLY thing following function does is tell you if the MASTER Mute is ON or OFF It will not look further than the master mute.If that is off, but the Wave Mute is on... you still wont hear a thing. pff... complicated what?! adapted and compiled from various VB and C sources.. <G -- keepITcool | www.XLsupport.com | keepITcool chello nl | amsterdam Option Explicit Const MMSYSERR_NOERROR = 0 Const MAXPNAMELEN = 32 Const MIXER_LONG_NAME_CHARS = 64 Const MIXER_SHORT_NAME_CHARS = 16 Const MIXER_OBJECTF_HANDLE As Long = &H80000000 Const MIXER_OBJECTF_MIXER As Long = &H0& Const MIXER_OBJECTF_HMIXER As Long = ( _ MIXER_OBJECTF_HANDLE Or MIXER_OBJECTF_MIXER) Const MIXER_GETLINEINFOF_COMPONENTTYPE = &H3& Const MIXER_GETCONTROLDETAILSF_VALUE = &H0& Const MIXER_GETLINECONTROLSF_ONEBYTYPE = &H2& Const MIXERLINE_COMPONENTTYPE_DST_FIRST = &H0& Const MIXERLINE_COMPONENTTYPE_DST_SPEAKERS = ( _ MIXERLINE_COMPONENTTYPE_DST_FIRST + 4) Const MIXERCONTROL_CT_CLASS_SWITCH As Long = &H20000000 Const MIXERCONTROL_CT_SC_SWITCH_BOOLEAN As Long = &H0& Const MIXERCONTROL_CT_UNITS_BOOLEAN As Long = &H10000 Const MIXERCONTROL_CONTROLTYPE_BOOLEAN As Long = ( _ MIXERCONTROL_CT_CLASS_SWITCH Or _ MIXERCONTROL_CT_SC_SWITCH_BOOLEAN Or _ MIXERCONTROL_CT_UNITS_BOOLEAN) Const MIXERCONTROL_CONTROLTYPE_MUTE As Long = ( _ MIXERCONTROL_CONTROLTYPE_BOOLEAN + 2) Declare Function mixerClose Lib "winmm.dll" ( _ ByVal hmx As Long) As Long Declare Function mixerOpen Lib "winmm.dll" (phmx As Long, _ ByVal uMxId As Long, ByVal dwCallback As Long, _ ByVal dwInstance As Long, ByVal fdwOpen As Long) As Long Declare Function mixerGetControlDetails Lib "winmm.dll" _ Alias "mixerGetControlDetailsA" (ByVal hmxobj As Long, _ pmxcd As MIXERCONTROLDETAILS, _ ByVal fdwDetails As Long) As Long Declare Function mixerGetLineControls Lib "winmm.dll" Alias _ "mixerGetLineControlsA" (ByVal hmxobj As Long, _ pmxlc As MIXERLINECONTROLS, _ ByVal fdwControls As Long) As Long Declare Function mixerGetLineInfo Lib "winmm.dll" Alias _ "mixerGetLineInfoA" (ByVal hmxobj As Long, _ pmxl As MIXERLINE, ByVal fdwInfo As Long) As Long Declare Function GlobalAlloc Lib "kernel32" ( _ ByVal wFlags As Long, ByVal dwBytes As Long) As Long Declare Function GlobalLock Lib "kernel32" ( _ ByVal hMem As Long) As Long Declare Function GlobalFree Lib "kernel32" ( _ ByVal hMem As Long) As Long Declare Sub CopyStructFromPtr Lib "kernel32" Alias _ "RtlMoveMemory" (struct As Any, ByVal ptr As Long, _ ByVal cb As Long) Declare Sub CopyPtrFromStruct Lib "kernel32" Alias _ "RtlMoveMemory" (ByVal ptr As Long, struct As Any, _ ByVal cb As Long) Type MIXERCONTROL cbStruct As Long dwControlID As Long dwControlType As Long fdwControl As Long cMultipleItems As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS lMinimum As Long lMaximum As Long reserved(10) As Long End Type Type MIXERCONTROLDETAILS cbStruct As Long dwControlID As Long cChannels As Long item As Long cbDetails As Long paDetails As Long End Type Type MIXERCONTROLDETAILS_BOOLEAN dwValue As Long End Type Type MIXERLINE cbStruct As Long dwDestination As Long dwSource As Long dwLineID As Long fdwLine As Long dwUser As Long dwComponentType As Long cChannels As Long cConnections As Long cControls As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS dwType As Long dwDeviceID As Long wMid As Integer wPid As Integer vDriverVersion As Long szPname As String * MAXPNAMELEN End Type Type MIXERLINECONTROLS cbStruct As Long dwLineID As Long dwControl As Long cControls As Long cbmxctrl As Long pamxctrl As Long End Type Function GetMasterMuteState() As Boolean ' This function reads the state of the masterMute control Dim hMixer As Long ' mixer handle Dim mxc As MIXERCONTROL Dim mxl As MIXERLINE Dim mxlc As MIXERLINECONTROLS Dim mxcd As MIXERCONTROLDETAILS Dim mxcdMute As MIXERCONTROLDETAILS_BOOLEAN Dim hMem As Long Dim rc As Long Dim iErr As Integer ' Open the mixer with deviceID 0. rc = mixerOpen(hMixer, 0, 0, 0, 0) If ((MMSYSERR_NOERROR < rc)) Then iErr = 1: GoTo theExit mxl.cbStruct = Len(mxl) mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS ' Obtain a line corresponding to the component type rc = mixerGetLineInfo(hMixer, mxl, _ MIXER_GETLINEINFOF_COMPONENTTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 2: GoTo theExit mxlc.cbStruct = Len(mxlc) mxlc.dwLineID = mxl.dwLineID mxlc.dwControl = MIXERCONTROL_CONTROLTYPE_MUTE mxlc.cControls = 1 mxlc.cbmxctrl = Len(mxc) ' Allocate a buffer for the control hMem = GlobalAlloc(&H40, Len(mxc)) mxlc.pamxctrl = GlobalLock(hMem) mxc.cbStruct = Len(mxc) ' Get the control rc = mixerGetLineControls(hMixer, mxlc, _ MIXER_GETLINECONTROLSF_ONEBYTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 3: GoTo theExit 'Copy into mxc structure CopyStructFromPtr mxc, mxlc.pamxctrl, Len(mxc) GlobalFree (hMem) hMem = 0 'Get the controldetails mxcd.cbStruct = Len(mxcd) mxcd.dwControlID = mxc.dwControlID mxcd.cChannels = 1 mxcd.item = 0 mxcd.cbDetails = Len(mxcdMute) ' Allocate a buffer for the controldetails hMem = GlobalAlloc(&H40, Len(mxcdMute)) mxcd.paDetails = GlobalLock(hMem) 'Get the controldetailvalue rc = mixerGetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_GETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 4: GoTo theExit ' Copy into mxcdMute structure CopyStructFromPtr mxcdMute, mxcd.paDetails, Len(mxcdMute) theExit: If hMem Then GlobalFree (hMem) If hMixer Then mixerClose (hMixer) If iErr < 0 Then MsgBox "Couldn't read the Master Mute Control" Else GetMasterMuteState = CBool(mxcdMute.dwValue) End If End Function keepITcool wrote : Reading the current state of the 'Master Mute' checkbox is a trifle complicated :( see Harald's link.. But in addition to Bob's solution of shelling to SndVol.. If you're working in Win2k/XP then Mute Toggling and VolumeUp and Down can easily be done via the keyboard.. Option Explicit Const VK_VOLUME_MUTE = &HAD 'Windows 2000/XP: Volume Mute key Const VK_VOLUME_DOWN = &HAE 'Windows 2000/XP: Volume Down key Const VK_VOLUME_UP = &HAF 'Windows 2000/XP: Volume Up key Private Declare Sub keybd_event Lib "user32" ( _ ByVal bVk As Byte, ByVal bScan As Byte, _ ByVal dwFlags As Long, ByVal dwExtraInfo As Long) Sub VolUp() keybd_event VK_VOLUME_UP, 0, 1, 0 keybd_event VK_VOLUME_UP, 0, 3, 0 End Sub Sub VolDown() keybd_event VK_VOLUME_DOWN, 0, 1, 0 keybd_event VK_VOLUME_DOWN, 0, 3, 0 End Sub Sub VolToggle() keybd_event VK_VOLUME_MUTE, 0, 1, 0 End Sub -- keepITcool www.XLsupport.com | keepITcool chello nl | amsterdam Mike wrote : Thanks in advance for your help. Does anyone have some VBA code that will unmute the sound for the Windows Volume control using Excel? I read some stuff in Walkenbach's book about displaying stuff from the Control Panel within Excel using windows API calls but I didn't see anything about changing the volume settings. Thanks again. |
#6
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
harald,
FWIW: hardly trimmed, but functional and adapted to the Master Mute switch. see other post in the thread. <g -- keepITcool | www.XLsupport.com | keepITcool chello nl | amsterdam Harald Staff wrote : Hi See if you can trim this down to something readable <g: http://support.microsoft.com/default...b;en-us;178456 HTH. Best wishes Harald |
#7
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
Following will read AND update the mutecontrols.
it will look at both the MasterMute and the WaveMute DONE!... A bit of work so I'd appreciate some reactions :) Option Explicit Private Const MMSYSERR_NOERROR As Long = 0 Private Const MAXPNAMELEN As Long = 32 Private Const MIXER_LONG_NAME_CHARS As Long = 64 Private Const MIXER_SHORT_NAME_CHARS As Long = 16 Private Const MIXER_OBJECTF_HANDLE As Long = &H80000000 Private Const MIXER_OBJECTF_MIXER As Long = &H0& Private Const MIXER_OBJECTF_HMIXER As Long = (MIXER_OBJECTF_HANDLE Or MIXER_OBJECTF_MIXER) Private Const MIXER_GETLINEINFOF_COMPONENTTYPE As Long = &H3& Private Const MIXER_GETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_SETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_GETLINECONTROLSF_ONEBYTYPE As Long = &H2& Private Const MIXERLINE_COMPONENTTYPE_DST_FIRST As Long = &H0& Private Const MIXERLINE_COMPONENTTYPE_DST_SPEAKERS As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 4) Private Const MIXERLINE_COMPONENTTYPE_DST_WAVEIN As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 7) Private Const MIXERLINE_COMPONENTTYPE_SRC_FIRST As Long = &H1000& Private Const MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT As Long = (MIXERLINE_COMPONENTTYPE_SRC_FIRST + 8) Private Const MIXERCONTROL_CT_CLASS_SWITCH As Long = &H20000000 Private Const MIXERCONTROL_CT_SC_SWITCH_BOOLEAN As Long = &H0& Private Const MIXERCONTROL_CT_UNITS_BOOLEAN As Long = &H10000 Private Const MIXERCONTROL_CONTROLTYPE_BOOLEAN As Long = (MIXERCONTROL_CT_CLASS_SWITCH Or MIXERCONTROL_CT_SC_SWITCH_BOOLEAN Or MIXERCONTROL_CT_UNITS_BOOLEAN) Private Const MIXERCONTROL_CONTROLTYPE_MUTE As Long = (MIXERCONTROL_CONTROLTYPE_BOOLEAN + 2) Private Declare Function mixerClose Lib "winmm.dll" (ByVal hmx As Long) As Long Private Declare Function mixerOpen Lib "winmm.dll" (phmx As Long, ByVal uMxId As Long, ByVal dwCallback As Long, ByVal dwInstance As Long, ByVal fdwOpen As Long) As Long Private Declare Function mixerGetLineInfo Lib "winmm.dll" Alias "mixerGetLineInfoA" (ByVal hmxobj As Long, pmxl As MIXERLINE, ByVal fdwInfo As Long) As Long Private Declare Function mixerGetLineControls Lib "winmm.dll" Alias "mixerGetLineControlsA" (ByVal hmxobj As Long, pmxlc As MIXERLINECONTROLS, ByVal fdwControls As Long) As Long Private Declare Function mixerGetControlDetails Lib "winmm.dll" Alias "mixerGetControlDetailsA" (ByVal hmxobj As Long, pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function mixerSetControlDetails Lib "winmm.dll" (ByVal hmxobj As Long, ByRef pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long Private Declare Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Function GlobalFree Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (struct As Any, ByVal ptr As Long, ByVal cb As Long) Private Declare Sub CopyPtrFromStruct Lib "kernel32" Alias "RtlMoveMemory" (ByVal ptr As Long, struct As Any, ByVal cb As Long) Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (pDst As Any, pSrc As Any, ByVal ByteLen As Long) Type MIXERCONTROL cbStruct As Long dwControlID As Long dwControlType As Long fdwControl As Long cMultipleItems As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS lMinimum As Long lMaximum As Long reserved(10) As Long End Type Type MIXERCONTROLDETAILS cbStruct As Long dwControlID As Long cChannels As Long item As Long cbDetails As Long paDetails As Long End Type Type MIXERCONTROLDETAILS_BOOLEAN dwValue As Long End Type Type MIXERLINE cbStruct As Long dwDestination As Long dwSource As Long dwLineID As Long fdwLine As Long dwUser As Long dwComponentType As Long cChannels As Long cConnections As Long cControls As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS dwType As Long dwDeviceID As Long wMid As Integer wPid As Integer vDriverVersion As Long szPname As String * MAXPNAMELEN End Type Type MIXERLINECONTROLS cbStruct As Long dwLineID As Long dwControl As Long cControls As Long cbmxctrl As Long pamxctrl As Long End Type Function MuteIT(Optional bChange As Boolean, Optional bState As Boolean) As Boolean ' This function reads and optionally sets the state ' of the mastermute and wavemute controls ' For disabling mute BOTH mutes will be set to false. ' For enabling mute ONLY the master mute will be set Dim hMixer As Long ' mixer handle Dim hMem As Long ' memory handle Dim rc As Long Dim iErr As Integer Dim iDev As Integer Dim bMuted(1 To 2) As Boolean ' Open the mixer with deviceID 0. rc = mixerOpen(hMixer, 0, 0, 0, 0) If ((MMSYSERR_NOERROR < rc)) Then iErr = 1: GoTo theExit For iDev = 1 To 2 Dim mxc As MIXERCONTROL Dim mxl As MIXERLINE Dim mxlc As MIXERLINECONTROLS Dim mxcd As MIXERCONTROLDETAILS Dim mxcdMute As MIXERCONTROLDETAILS_BOOLEAN mxl.cbStruct = Len(mxl) Select Case iDev Case 1: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS 'MasterMute Case 2: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT 'WaveMute End Select ' Obtain a line corresponding to the component type rc = mixerGetLineInfo(hMixer, mxl, _ MIXER_GETLINEINFOF_COMPONENTTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 2: GoTo theExit mxlc.cbStruct = Len(mxlc) mxlc.dwLineID = mxl.dwLineID mxlc.dwControl = MIXERCONTROL_CONTROLTYPE_MUTE mxlc.cControls = 1 mxlc.cbmxctrl = Len(mxc) ' Allocate a buffer for the control hMem = GlobalAlloc(&H40, Len(mxc)) mxlc.pamxctrl = GlobalLock(hMem) mxc.cbStruct = Len(mxc) ' Get the control rc = mixerGetLineControls(hMixer, mxlc, _ MIXER_GETLINECONTROLSF_ONEBYTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 3: GoTo theExit 'Copy into mxc structure CopyStructFromPtr mxc, mxlc.pamxctrl, Len(mxc) GlobalFree (hMem): hMem = 0 'Get the controldetails mxcd.cbStruct = Len(mxcd) mxcd.dwControlID = mxc.dwControlID mxcd.cChannels = 1 mxcd.item = 0 mxcd.cbDetails = Len(mxcdMute) ' Allocate a buffer for the controldetails hMem = GlobalAlloc(&H40, Len(mxcdMute)) mxcd.paDetails = GlobalLock(hMem) 'Get the controldetailvalue rc = mixerGetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_GETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 4: GoTo theExit ' Copy into mxcdMute structure CopyStructFromPtr mxcdMute, mxcd.paDetails, Len(mxcdMute) GlobalFree (hMem): hMem = 0 bMuted(iDev) = CBool(mxcdMute.dwValue) If bChange Then If bMuted(iDev) < bState Then mxcdMute.dwValue = IIf(bState And iDev = 1, 1, 0) CopyPtrFromStruct mxcd.paDetails, mxcdMute, Len(mxcdMute) 'update the mixercontrol rc = mixerSetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_SETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 5: GoTo theExit bMuted(iDev) = CBool(mxcdMute.dwValue) End If End If Next theExit: If hMem Then GlobalFree (hMem) If hMixer Then mixerClose (hMixer) If iErr < 0 Then MsgBox "Error in MuteIt" & vbLf & _ "exit code:" & iErr & "Device:" & iDev Else MuteIT = (bMuted(1) Or bMuted(2)) End If End Function -- keepITcool | www.XLsupport.com | keepITcool chello nl | amsterdam Mike wrote : Thanks in advance for your help. Does anyone have some VBA code that will unmute the sound for the Windows Volume control using Excel? I read some stuff in Walkenbach's book about displaying stuff from the Control Panel within Excel using windows API calls but I didn't see anything about changing the volume settings. Thanks again. |
#8
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
"keepITcool" skrev i melding
t.com... DONE!... A bit of work so I'd appreciate some reactions :) First reaction: Impressed, and a great thing to have in the archives. It's pretty huge though, so a qualified piece of insight reaction kind of thing will not happen the first few days ;-) Best wishes Harald |
#9
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
Hi KeepITcool
some reaction - looks like amazing code ! The good news - it successfully muted the volume The bad news - it successfully crashed my Excel and removed the volume controls from system tray. Lots of fumes and smoke coming from the back my pc, or perhaps from the back of my head, difficult to tell. Had to reboot twice to get the volume controls back to tray. XL2K - W98/2 Possible reason - once before I tried some seriously good stuff from this ng which crashed in a big way. Reason was due to me not unwrapping all lines correctly, even though I thought I carefully had. Pretty sure I unwrapped yours correctly, when I have time and am "prepared" will try again and step through. Regards, Peter T "keepITcool" wrote in message t.com... Following will read AND update the mutecontrols. it will look at both the MasterMute and the WaveMute DONE!... A bit of work so I'd appreciate some reactions :) Option Explicit Private Const MMSYSERR_NOERROR As Long = 0 Private Const MAXPNAMELEN As Long = 32 Private Const MIXER_LONG_NAME_CHARS As Long = 64 Private Const MIXER_SHORT_NAME_CHARS As Long = 16 Private Const MIXER_OBJECTF_HANDLE As Long = &H80000000 Private Const MIXER_OBJECTF_MIXER As Long = &H0& Private Const MIXER_OBJECTF_HMIXER As Long = (MIXER_OBJECTF_HANDLE Or MIXER_OBJECTF_MIXER) Private Const MIXER_GETLINEINFOF_COMPONENTTYPE As Long = &H3& Private Const MIXER_GETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_SETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_GETLINECONTROLSF_ONEBYTYPE As Long = &H2& Private Const MIXERLINE_COMPONENTTYPE_DST_FIRST As Long = &H0& Private Const MIXERLINE_COMPONENTTYPE_DST_SPEAKERS As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 4) Private Const MIXERLINE_COMPONENTTYPE_DST_WAVEIN As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 7) Private Const MIXERLINE_COMPONENTTYPE_SRC_FIRST As Long = &H1000& Private Const MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT As Long = (MIXERLINE_COMPONENTTYPE_SRC_FIRST + 8) Private Const MIXERCONTROL_CT_CLASS_SWITCH As Long = &H20000000 Private Const MIXERCONTROL_CT_SC_SWITCH_BOOLEAN As Long = &H0& Private Const MIXERCONTROL_CT_UNITS_BOOLEAN As Long = &H10000 Private Const MIXERCONTROL_CONTROLTYPE_BOOLEAN As Long = (MIXERCONTROL_CT_CLASS_SWITCH Or MIXERCONTROL_CT_SC_SWITCH_BOOLEAN Or MIXERCONTROL_CT_UNITS_BOOLEAN) Private Const MIXERCONTROL_CONTROLTYPE_MUTE As Long = (MIXERCONTROL_CONTROLTYPE_BOOLEAN + 2) Private Declare Function mixerClose Lib "winmm.dll" (ByVal hmx As Long) As Long Private Declare Function mixerOpen Lib "winmm.dll" (phmx As Long, ByVal uMxId As Long, ByVal dwCallback As Long, ByVal dwInstance As Long, ByVal fdwOpen As Long) As Long Private Declare Function mixerGetLineInfo Lib "winmm.dll" Alias "mixerGetLineInfoA" (ByVal hmxobj As Long, pmxl As MIXERLINE, ByVal fdwInfo As Long) As Long Private Declare Function mixerGetLineControls Lib "winmm.dll" Alias "mixerGetLineControlsA" (ByVal hmxobj As Long, pmxlc As MIXERLINECONTROLS, ByVal fdwControls As Long) As Long Private Declare Function mixerGetControlDetails Lib "winmm.dll" Alias "mixerGetControlDetailsA" (ByVal hmxobj As Long, pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function mixerSetControlDetails Lib "winmm.dll" (ByVal hmxobj As Long, ByRef pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long Private Declare Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Function GlobalFree Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (struct As Any, ByVal ptr As Long, ByVal cb As Long) Private Declare Sub CopyPtrFromStruct Lib "kernel32" Alias "RtlMoveMemory" (ByVal ptr As Long, struct As Any, ByVal cb As Long) Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (pDst As Any, pSrc As Any, ByVal ByteLen As Long) Type MIXERCONTROL cbStruct As Long dwControlID As Long dwControlType As Long fdwControl As Long cMultipleItems As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS lMinimum As Long lMaximum As Long reserved(10) As Long End Type Type MIXERCONTROLDETAILS cbStruct As Long dwControlID As Long cChannels As Long item As Long cbDetails As Long paDetails As Long End Type Type MIXERCONTROLDETAILS_BOOLEAN dwValue As Long End Type Type MIXERLINE cbStruct As Long dwDestination As Long dwSource As Long dwLineID As Long fdwLine As Long dwUser As Long dwComponentType As Long cChannels As Long cConnections As Long cControls As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS dwType As Long dwDeviceID As Long wMid As Integer wPid As Integer vDriverVersion As Long szPname As String * MAXPNAMELEN End Type Type MIXERLINECONTROLS cbStruct As Long dwLineID As Long dwControl As Long cControls As Long cbmxctrl As Long pamxctrl As Long End Type Function MuteIT(Optional bChange As Boolean, Optional bState As Boolean) As Boolean ' This function reads and optionally sets the state ' of the mastermute and wavemute controls ' For disabling mute BOTH mutes will be set to false. ' For enabling mute ONLY the master mute will be set Dim hMixer As Long ' mixer handle Dim hMem As Long ' memory handle Dim rc As Long Dim iErr As Integer Dim iDev As Integer Dim bMuted(1 To 2) As Boolean ' Open the mixer with deviceID 0. rc = mixerOpen(hMixer, 0, 0, 0, 0) If ((MMSYSERR_NOERROR < rc)) Then iErr = 1: GoTo theExit For iDev = 1 To 2 Dim mxc As MIXERCONTROL Dim mxl As MIXERLINE Dim mxlc As MIXERLINECONTROLS Dim mxcd As MIXERCONTROLDETAILS Dim mxcdMute As MIXERCONTROLDETAILS_BOOLEAN mxl.cbStruct = Len(mxl) Select Case iDev Case 1: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS 'MasterMute Case 2: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT 'WaveMute End Select ' Obtain a line corresponding to the component type rc = mixerGetLineInfo(hMixer, mxl, _ MIXER_GETLINEINFOF_COMPONENTTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 2: GoTo theExit mxlc.cbStruct = Len(mxlc) mxlc.dwLineID = mxl.dwLineID mxlc.dwControl = MIXERCONTROL_CONTROLTYPE_MUTE mxlc.cControls = 1 mxlc.cbmxctrl = Len(mxc) ' Allocate a buffer for the control hMem = GlobalAlloc(&H40, Len(mxc)) mxlc.pamxctrl = GlobalLock(hMem) mxc.cbStruct = Len(mxc) ' Get the control rc = mixerGetLineControls(hMixer, mxlc, _ MIXER_GETLINECONTROLSF_ONEBYTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 3: GoTo theExit 'Copy into mxc structure CopyStructFromPtr mxc, mxlc.pamxctrl, Len(mxc) GlobalFree (hMem): hMem = 0 'Get the controldetails mxcd.cbStruct = Len(mxcd) mxcd.dwControlID = mxc.dwControlID mxcd.cChannels = 1 mxcd.item = 0 mxcd.cbDetails = Len(mxcdMute) ' Allocate a buffer for the controldetails hMem = GlobalAlloc(&H40, Len(mxcdMute)) mxcd.paDetails = GlobalLock(hMem) 'Get the controldetailvalue rc = mixerGetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_GETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 4: GoTo theExit ' Copy into mxcdMute structure CopyStructFromPtr mxcdMute, mxcd.paDetails, Len(mxcdMute) GlobalFree (hMem): hMem = 0 bMuted(iDev) = CBool(mxcdMute.dwValue) If bChange Then If bMuted(iDev) < bState Then mxcdMute.dwValue = IIf(bState And iDev = 1, 1, 0) CopyPtrFromStruct mxcd.paDetails, mxcdMute, Len(mxcdMute) 'update the mixercontrol rc = mixerSetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_SETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 5: GoTo theExit bMuted(iDev) = CBool(mxcdMute.dwValue) End If End If Next theExit: If hMem Then GlobalFree (hMem) If hMixer Then mixerClose (hMixer) If iErr < 0 Then MsgBox "Error in MuteIt" & vbLf & _ "exit code:" & iErr & "Device:" & iDev Else MuteIT = (bMuted(1) Or bMuted(2)) End If End Function -- keepITcool | www.XLsupport.com | keepITcool chello nl | amsterdam Mike wrote : Thanks in advance for your help. Does anyone have some VBA code that will unmute the sound for the Windows Volume control using Excel? I read some stuff in Walkenbach's book about displaying stuff from the Control Panel within Excel using windows API calls but I didn't see anything about changing the volume settings. Thanks again. |
#10
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
I've written/tested xlXP/2003 and WinXP. While testing: first test with bChange omitted or FALSE. I think I need to look at memorylocking when I copy the changed structure back. That may be the cause of crashing. Cant test w98. But will check documentation for the apis for w98 compatibility. -- keepITcool | www.XLsupport.com | keepITcool chello nl | amsterdam Peter T wrote : Hi KeepITcool some reaction - looks like amazing code ! The good news - it successfully muted the volume The bad news - it successfully crashed my Excel and removed the volume controls from system tray. Lots of fumes and smoke coming from the back my pc, or perhaps from the back of my head, difficult to tell. Had to reboot twice to get the volume controls back to tray. XL2K - W98/2 Possible reason - once before I tried some seriously good stuff from this ng which crashed in a big way. Reason was due to me not unwrapping all lines correctly, even though I thought I carefully had. Pretty sure I unwrapped yours correctly, when I have time and am "prepared" will try again and step through. Regards, Peter T "keepITcool" wrote in message t.com... Following will read AND update the mutecontrols. it will look at both the MasterMute and the WaveMute DONE!... A bit of work so I'd appreciate some reactions :) Option Explicit Private Const MMSYSERR_NOERROR As Long = 0 Private Const MAXPNAMELEN As Long = 32 Private Const MIXER_LONG_NAME_CHARS As Long = 64 Private Const MIXER_SHORT_NAME_CHARS As Long = 16 Private Const MIXER_OBJECTF_HANDLE As Long = &H80000000 Private Const MIXER_OBJECTF_MIXER As Long = &H0& Private Const MIXER_OBJECTF_HMIXER As Long = (MIXER_OBJECTF_HANDLE Or MIXER_OBJECTF_MIXER) Private Const MIXER_GETLINEINFOF_COMPONENTTYPE As Long = &H3& Private Const MIXER_GETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_SETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_GETLINECONTROLSF_ONEBYTYPE As Long = &H2& Private Const MIXERLINE_COMPONENTTYPE_DST_FIRST As Long = &H0& Private Const MIXERLINE_COMPONENTTYPE_DST_SPEAKERS As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 4) Private Const MIXERLINE_COMPONENTTYPE_DST_WAVEIN As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 7) Private Const MIXERLINE_COMPONENTTYPE_SRC_FIRST As Long = &H1000& Private Const MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT As Long = (MIXERLINE_COMPONENTTYPE_SRC_FIRST + 8) Private Const MIXERCONTROL_CT_CLASS_SWITCH As Long = &H20000000 Private Const MIXERCONTROL_CT_SC_SWITCH_BOOLEAN As Long = &H0& Private Const MIXERCONTROL_CT_UNITS_BOOLEAN As Long = &H10000 Private Const MIXERCONTROL_CONTROLTYPE_BOOLEAN As Long = (MIXERCONTROL_CT_CLASS_SWITCH Or MIXERCONTROL_CT_SC_SWITCH_BOOLEAN Or MIXERCONTROL_CT_UNITS_BOOLEAN) Private Const MIXERCONTROL_CONTROLTYPE_MUTE As Long = (MIXERCONTROL_CONTROLTYPE_BOOLEAN + 2) Private Declare Function mixerClose Lib "winmm.dll" (ByVal hmx As Long) As Long Private Declare Function mixerOpen Lib "winmm.dll" (phmx As Long, ByVal uMxId As Long, ByVal dwCallback As Long, ByVal dwInstance As Long, ByVal fdwOpen As Long) As Long Private Declare Function mixerGetLineInfo Lib "winmm.dll" Alias "mixerGetLineInfoA" (ByVal hmxobj As Long, pmxl As MIXERLINE, ByVal fdwInfo As Long) As Long Private Declare Function mixerGetLineControls Lib "winmm.dll" Alias "mixerGetLineControlsA" (ByVal hmxobj As Long, pmxlc As MIXERLINECONTROLS, ByVal fdwControls As Long) As Long Private Declare Function mixerGetControlDetails Lib "winmm.dll" Alias "mixerGetControlDetailsA" (ByVal hmxobj As Long, pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function mixerSetControlDetails Lib "winmm.dll" (ByVal hmxobj As Long, ByRef pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long Private Declare Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Function GlobalFree Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (struct As Any, ByVal ptr As Long, ByVal cb As Long) Private Declare Sub CopyPtrFromStruct Lib "kernel32" Alias "RtlMoveMemory" (ByVal ptr As Long, struct As Any, ByVal cb As Long) Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (pDst As Any, pSrc As Any, ByVal ByteLen As Long) Type MIXERCONTROL cbStruct As Long dwControlID As Long dwControlType As Long fdwControl As Long cMultipleItems As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS lMinimum As Long lMaximum As Long reserved(10) As Long End Type Type MIXERCONTROLDETAILS cbStruct As Long dwControlID As Long cChannels As Long item As Long cbDetails As Long paDetails As Long End Type Type MIXERCONTROLDETAILS_BOOLEAN dwValue As Long End Type Type MIXERLINE cbStruct As Long dwDestination As Long dwSource As Long dwLineID As Long fdwLine As Long dwUser As Long dwComponentType As Long cChannels As Long cConnections As Long cControls As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS dwType As Long dwDeviceID As Long wMid As Integer wPid As Integer vDriverVersion As Long szPname As String * MAXPNAMELEN End Type Type MIXERLINECONTROLS cbStruct As Long dwLineID As Long dwControl As Long cControls As Long cbmxctrl As Long pamxctrl As Long End Type Function MuteIT(Optional bChange As Boolean, Optional bState As Boolean) As Boolean ' This function reads and optionally sets the state ' of the mastermute and wavemute controls ' For disabling mute BOTH mutes will be set to false. ' For enabling mute ONLY the master mute will be set Dim hMixer As Long ' mixer handle Dim hMem As Long ' memory handle Dim rc As Long Dim iErr As Integer Dim iDev As Integer Dim bMuted(1 To 2) As Boolean ' Open the mixer with deviceID 0. rc = mixerOpen(hMixer, 0, 0, 0, 0) If ((MMSYSERR_NOERROR < rc)) Then iErr = 1: GoTo theExit For iDev = 1 To 2 Dim mxc As MIXERCONTROL Dim mxl As MIXERLINE Dim mxlc As MIXERLINECONTROLS Dim mxcd As MIXERCONTROLDETAILS Dim mxcdMute As MIXERCONTROLDETAILS_BOOLEAN mxl.cbStruct = Len(mxl) Select Case iDev Case 1: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS 'MasterMute Case 2: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT 'WaveMute End Select ' Obtain a line corresponding to the component type rc = mixerGetLineInfo(hMixer, mxl, _ MIXER_GETLINEINFOF_COMPONENTTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 2: GoTo theExit mxlc.cbStruct = Len(mxlc) mxlc.dwLineID = mxl.dwLineID mxlc.dwControl = MIXERCONTROL_CONTROLTYPE_MUTE mxlc.cControls = 1 mxlc.cbmxctrl = Len(mxc) ' Allocate a buffer for the control hMem = GlobalAlloc(&H40, Len(mxc)) mxlc.pamxctrl = GlobalLock(hMem) mxc.cbStruct = Len(mxc) ' Get the control rc = mixerGetLineControls(hMixer, mxlc, _ MIXER_GETLINECONTROLSF_ONEBYTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 3: GoTo theExit 'Copy into mxc structure CopyStructFromPtr mxc, mxlc.pamxctrl, Len(mxc) GlobalFree (hMem): hMem = 0 'Get the controldetails mxcd.cbStruct = Len(mxcd) mxcd.dwControlID = mxc.dwControlID mxcd.cChannels = 1 mxcd.item = 0 mxcd.cbDetails = Len(mxcdMute) ' Allocate a buffer for the controldetails hMem = GlobalAlloc(&H40, Len(mxcdMute)) mxcd.paDetails = GlobalLock(hMem) 'Get the controldetailvalue rc = mixerGetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_GETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 4: GoTo theExit ' Copy into mxcdMute structure CopyStructFromPtr mxcdMute, mxcd.paDetails, Len(mxcdMute) GlobalFree (hMem): hMem = 0 bMuted(iDev) = CBool(mxcdMute.dwValue) If bChange Then If bMuted(iDev) < bState Then mxcdMute.dwValue = IIf(bState And iDev = 1, 1, 0) CopyPtrFromStruct mxcd.paDetails, mxcdMute, Len(mxcdMute) 'update the mixercontrol rc = mixerSetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_SETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 5: GoTo theExit bMuted(iDev) = CBool(mxcdMute.dwValue) End If End If Next theExit: If hMem Then GlobalFree (hMem) If hMixer Then mixerClose (hMixer) If iErr < 0 Then MsgBox "Error in MuteIt" & vbLf & _ "exit code:" & iErr & "Device:" & iDev Else MuteIT = (bMuted(1) Or bMuted(2)) End If End Function -- keepITcool www.XLsupport.com | keepITcool chello nl | amsterdam Mike wrote : Thanks in advance for your help. Does anyone have some VBA code that will unmute the sound for the Windows Volume control using Excel? I read some stuff in Walkenbach's book about displaying stuff from the Control Panel within Excel using windows API calls but I didn't see anything about changing the volume settings. Thanks again. |
#11
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
Peter,
documentation says: NT 3.1 or later; Windows 95 or later however I've added memory locking in the change part. let me know if it stops the crashing. I can toggle the mute 1000 times and it works ok for me. please swap the If bChange..EndIf block at the bottom of the loop to: If bChange Then If bMuted(iDev) < bState Then mxcdMute.dwValue = IIf(bState And iDev = 1, 1, 0) hMem = GlobalAlloc(&H40, Len(mxcdMute)) mxcd.paDetails = GlobalLock(hMem) CopyPtrFromStruct mxcd.paDetails, mxcdMute, Len(mxcdMute) 'update the mixercontrol rc = mixerSetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_SETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 5: GoTo theExit GlobalFree (hMem): hMem = 0 bMuted(iDev) = CBool(mxcdMute.dwValue) End If End If -- keepITcool | www.XLsupport.com | keepITcool chello nl | amsterdam keepITcool wrote : I've written/tested xlXP/2003 and WinXP. While testing: first test with bChange omitted or FALSE. I think I need to look at memorylocking when I copy the changed structure back. That may be the cause of crashing. Cant test w98. But will check documentation for the apis for w98 compatibility. -- keepITcool www.XLsupport.com | keepITcool chello nl | amsterdam Peter T wrote : Hi KeepITcool some reaction - looks like amazing code ! The good news - it successfully muted the volume The bad news - it successfully crashed my Excel and removed the volume controls from system tray. Lots of fumes and smoke coming from the back my pc, or perhaps from the back of my head, difficult to tell. Had to reboot twice to get the volume controls back to tray. XL2K - W98/2 Possible reason - once before I tried some seriously good stuff from this ng which crashed in a big way. Reason was due to me not unwrapping all lines correctly, even though I thought I carefully had. Pretty sure I unwrapped yours correctly, when I have time and am "prepared" will try again and step through. Regards, Peter T "keepITcool" wrote in message t.com... Following will read AND update the mutecontrols. it will look at both the MasterMute and the WaveMute DONE!... A bit of work so I'd appreciate some reactions :) Option Explicit Private Const MMSYSERR_NOERROR As Long = 0 Private Const MAXPNAMELEN As Long = 32 Private Const MIXER_LONG_NAME_CHARS As Long = 64 Private Const MIXER_SHORT_NAME_CHARS As Long = 16 Private Const MIXER_OBJECTF_HANDLE As Long = &H80000000 Private Const MIXER_OBJECTF_MIXER As Long = &H0& Private Const MIXER_OBJECTF_HMIXER As Long = (MIXER_OBJECTF_HANDLE Or MIXER_OBJECTF_MIXER) Private Const MIXER_GETLINEINFOF_COMPONENTTYPE As Long = &H3& Private Const MIXER_GETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_SETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_GETLINECONTROLSF_ONEBYTYPE As Long = &H2& Private Const MIXERLINE_COMPONENTTYPE_DST_FIRST As Long = &H0& Private Const MIXERLINE_COMPONENTTYPE_DST_SPEAKERS As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 4) Private Const MIXERLINE_COMPONENTTYPE_DST_WAVEIN As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 7) Private Const MIXERLINE_COMPONENTTYPE_SRC_FIRST As Long = &H1000& Private Const MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT As Long = (MIXERLINE_COMPONENTTYPE_SRC_FIRST + 8) Private Const MIXERCONTROL_CT_CLASS_SWITCH As Long = &H20000000 Private Const MIXERCONTROL_CT_SC_SWITCH_BOOLEAN As Long = &H0& Private Const MIXERCONTROL_CT_UNITS_BOOLEAN As Long = &H10000 Private Const MIXERCONTROL_CONTROLTYPE_BOOLEAN As Long = (MIXERCONTROL_CT_CLASS_SWITCH Or MIXERCONTROL_CT_SC_SWITCH_BOOLEAN Or MIXERCONTROL_CT_UNITS_BOOLEAN) Private Const MIXERCONTROL_CONTROLTYPE_MUTE As Long = (MIXERCONTROL_CONTROLTYPE_BOOLEAN + 2) Private Declare Function mixerClose Lib "winmm.dll" (ByVal hmx As Long) As Long Private Declare Function mixerOpen Lib "winmm.dll" (phmx As Long, ByVal uMxId As Long, ByVal dwCallback As Long, ByVal dwInstance As Long, ByVal fdwOpen As Long) As Long Private Declare Function mixerGetLineInfo Lib "winmm.dll" Alias "mixerGetLineInfoA" (ByVal hmxobj As Long, pmxl As MIXERLINE, ByVal fdwInfo As Long) As Long Private Declare Function mixerGetLineControls Lib "winmm.dll" Alias "mixerGetLineControlsA" (ByVal hmxobj As Long, pmxlc As MIXERLINECONTROLS, ByVal fdwControls As Long) As Long Private Declare Function mixerGetControlDetails Lib "winmm.dll" Alias "mixerGetControlDetailsA" (ByVal hmxobj As Long, pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function mixerSetControlDetails Lib "winmm.dll" (ByVal hmxobj As Long, ByRef pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long Private Declare Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Function GlobalFree Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (struct As Any, ByVal ptr As Long, ByVal cb As Long) Private Declare Sub CopyPtrFromStruct Lib "kernel32" Alias "RtlMoveMemory" (ByVal ptr As Long, struct As Any, ByVal cb As Long) Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (pDst As Any, pSrc As Any, ByVal ByteLen As Long) Type MIXERCONTROL cbStruct As Long dwControlID As Long dwControlType As Long fdwControl As Long cMultipleItems As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS lMinimum As Long lMaximum As Long reserved(10) As Long End Type Type MIXERCONTROLDETAILS cbStruct As Long dwControlID As Long cChannels As Long item As Long cbDetails As Long paDetails As Long End Type Type MIXERCONTROLDETAILS_BOOLEAN dwValue As Long End Type Type MIXERLINE cbStruct As Long dwDestination As Long dwSource As Long dwLineID As Long fdwLine As Long dwUser As Long dwComponentType As Long cChannels As Long cConnections As Long cControls As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS dwType As Long dwDeviceID As Long wMid As Integer wPid As Integer vDriverVersion As Long szPname As String * MAXPNAMELEN End Type Type MIXERLINECONTROLS cbStruct As Long dwLineID As Long dwControl As Long cControls As Long cbmxctrl As Long pamxctrl As Long End Type Function MuteIT(Optional bChange As Boolean, Optional bState As Boolean) As Boolean ' This function reads and optionally sets the state ' of the mastermute and wavemute controls ' For disabling mute BOTH mutes will be set to false. ' For enabling mute ONLY the master mute will be set Dim hMixer As Long ' mixer handle Dim hMem As Long ' memory handle Dim rc As Long Dim iErr As Integer Dim iDev As Integer Dim bMuted(1 To 2) As Boolean ' Open the mixer with deviceID 0. rc = mixerOpen(hMixer, 0, 0, 0, 0) If ((MMSYSERR_NOERROR < rc)) Then iErr = 1: GoTo theExit For iDev = 1 To 2 Dim mxc As MIXERCONTROL Dim mxl As MIXERLINE Dim mxlc As MIXERLINECONTROLS Dim mxcd As MIXERCONTROLDETAILS Dim mxcdMute As MIXERCONTROLDETAILS_BOOLEAN mxl.cbStruct = Len(mxl) Select Case iDev Case 1: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS 'MasterMute Case 2: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT 'WaveMute End Select ' Obtain a line corresponding to the component type rc = mixerGetLineInfo(hMixer, mxl, _ MIXER_GETLINEINFOF_COMPONENTTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 2: GoTo theExit mxlc.cbStruct = Len(mxlc) mxlc.dwLineID = mxl.dwLineID mxlc.dwControl = MIXERCONTROL_CONTROLTYPE_MUTE mxlc.cControls = 1 mxlc.cbmxctrl = Len(mxc) ' Allocate a buffer for the control hMem = GlobalAlloc(&H40, Len(mxc)) mxlc.pamxctrl = GlobalLock(hMem) mxc.cbStruct = Len(mxc) ' Get the control rc = mixerGetLineControls(hMixer, mxlc, _ MIXER_GETLINECONTROLSF_ONEBYTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 3: GoTo theExit 'Copy into mxc structure CopyStructFromPtr mxc, mxlc.pamxctrl, Len(mxc) GlobalFree (hMem): hMem = 0 'Get the controldetails mxcd.cbStruct = Len(mxcd) mxcd.dwControlID = mxc.dwControlID mxcd.cChannels = 1 mxcd.item = 0 mxcd.cbDetails = Len(mxcdMute) ' Allocate a buffer for the controldetails hMem = GlobalAlloc(&H40, Len(mxcdMute)) mxcd.paDetails = GlobalLock(hMem) 'Get the controldetailvalue rc = mixerGetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_GETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 4: GoTo theExit ' Copy into mxcdMute structure CopyStructFromPtr mxcdMute, mxcd.paDetails, Len(mxcdMute) GlobalFree (hMem): hMem = 0 bMuted(iDev) = CBool(mxcdMute.dwValue) If bChange Then If bMuted(iDev) < bState Then mxcdMute.dwValue = IIf(bState And iDev = 1, 1, 0) CopyPtrFromStruct mxcd.paDetails, mxcdMute, Len(mxcdMute) 'update the mixercontrol rc = mixerSetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_SETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 5: GoTo theExit bMuted(iDev) = CBool(mxcdMute.dwValue) End If End If Next theExit: If hMem Then GlobalFree (hMem) If hMixer Then mixerClose (hMixer) If iErr < 0 Then MsgBox "Error in MuteIt" & vbLf & _ "exit code:" & iErr & "Device:" & iDev Else MuteIT = (bMuted(1) Or bMuted(2)) End If End Function -- keepITcool www.XLsupport.com | keepITcool chello nl | amsterdam Mike wrote : Thanks in advance for your help. Does anyone have some VBA code that will unmute the sound for the Windows Volume control using Excel? I read some stuff in Walkenbach's book about displaying stuff from the Control Panel within Excel using windows API calls but I didn't see anything about changing the volume settings. Thanks again. |
#12
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
I should have mentioned - first time I tried was simply:
b = MuteIT which returned False and made no changes to Vol/mute. Then I tried following which resulted in the crash: b = MuteIT(true, true) FWIW I had successfully compiled the code with Option Explicit at top of the module. Regards, Peter T "keepITcool" wrote in message t.com... I've written/tested xlXP/2003 and WinXP. While testing: first test with bChange omitted or FALSE. I think I need to look at memorylocking when I copy the changed structure back. That may be the cause of crashing. Cant test w98. But will check documentation for the apis for w98 compatibility. -- keepITcool | www.XLsupport.com | keepITcool chello nl | amsterdam Peter T wrote : Hi KeepITcool some reaction - looks like amazing code ! The good news - it successfully muted the volume The bad news - it successfully crashed my Excel and removed the volume controls from system tray. Lots of fumes and smoke coming from the back my pc, or perhaps from the back of my head, difficult to tell. Had to reboot twice to get the volume controls back to tray. XL2K - W98/2 Possible reason - once before I tried some seriously good stuff from this ng which crashed in a big way. Reason was due to me not unwrapping all lines correctly, even though I thought I carefully had. Pretty sure I unwrapped yours correctly, when I have time and am "prepared" will try again and step through. Regards, Peter T "keepITcool" wrote in message t.com... Following will read AND update the mutecontrols. it will look at both the MasterMute and the WaveMute DONE!... A bit of work so I'd appreciate some reactions :) Option Explicit Private Const MMSYSERR_NOERROR As Long = 0 Private Const MAXPNAMELEN As Long = 32 Private Const MIXER_LONG_NAME_CHARS As Long = 64 Private Const MIXER_SHORT_NAME_CHARS As Long = 16 Private Const MIXER_OBJECTF_HANDLE As Long = &H80000000 Private Const MIXER_OBJECTF_MIXER As Long = &H0& Private Const MIXER_OBJECTF_HMIXER As Long = (MIXER_OBJECTF_HANDLE Or MIXER_OBJECTF_MIXER) Private Const MIXER_GETLINEINFOF_COMPONENTTYPE As Long = &H3& Private Const MIXER_GETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_SETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_GETLINECONTROLSF_ONEBYTYPE As Long = &H2& Private Const MIXERLINE_COMPONENTTYPE_DST_FIRST As Long = &H0& Private Const MIXERLINE_COMPONENTTYPE_DST_SPEAKERS As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 4) Private Const MIXERLINE_COMPONENTTYPE_DST_WAVEIN As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 7) Private Const MIXERLINE_COMPONENTTYPE_SRC_FIRST As Long = &H1000& Private Const MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT As Long = (MIXERLINE_COMPONENTTYPE_SRC_FIRST + 8) Private Const MIXERCONTROL_CT_CLASS_SWITCH As Long = &H20000000 Private Const MIXERCONTROL_CT_SC_SWITCH_BOOLEAN As Long = &H0& Private Const MIXERCONTROL_CT_UNITS_BOOLEAN As Long = &H10000 Private Const MIXERCONTROL_CONTROLTYPE_BOOLEAN As Long = (MIXERCONTROL_CT_CLASS_SWITCH Or MIXERCONTROL_CT_SC_SWITCH_BOOLEAN Or MIXERCONTROL_CT_UNITS_BOOLEAN) Private Const MIXERCONTROL_CONTROLTYPE_MUTE As Long = (MIXERCONTROL_CONTROLTYPE_BOOLEAN + 2) Private Declare Function mixerClose Lib "winmm.dll" (ByVal hmx As Long) As Long Private Declare Function mixerOpen Lib "winmm.dll" (phmx As Long, ByVal uMxId As Long, ByVal dwCallback As Long, ByVal dwInstance As Long, ByVal fdwOpen As Long) As Long Private Declare Function mixerGetLineInfo Lib "winmm.dll" Alias "mixerGetLineInfoA" (ByVal hmxobj As Long, pmxl As MIXERLINE, ByVal fdwInfo As Long) As Long Private Declare Function mixerGetLineControls Lib "winmm.dll" Alias "mixerGetLineControlsA" (ByVal hmxobj As Long, pmxlc As MIXERLINECONTROLS, ByVal fdwControls As Long) As Long Private Declare Function mixerGetControlDetails Lib "winmm.dll" Alias "mixerGetControlDetailsA" (ByVal hmxobj As Long, pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function mixerSetControlDetails Lib "winmm.dll" (ByVal hmxobj As Long, ByRef pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long Private Declare Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Function GlobalFree Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (struct As Any, ByVal ptr As Long, ByVal cb As Long) Private Declare Sub CopyPtrFromStruct Lib "kernel32" Alias "RtlMoveMemory" (ByVal ptr As Long, struct As Any, ByVal cb As Long) Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (pDst As Any, pSrc As Any, ByVal ByteLen As Long) Type MIXERCONTROL cbStruct As Long dwControlID As Long dwControlType As Long fdwControl As Long cMultipleItems As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS lMinimum As Long lMaximum As Long reserved(10) As Long End Type Type MIXERCONTROLDETAILS cbStruct As Long dwControlID As Long cChannels As Long item As Long cbDetails As Long paDetails As Long End Type Type MIXERCONTROLDETAILS_BOOLEAN dwValue As Long End Type Type MIXERLINE cbStruct As Long dwDestination As Long dwSource As Long dwLineID As Long fdwLine As Long dwUser As Long dwComponentType As Long cChannels As Long cConnections As Long cControls As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS dwType As Long dwDeviceID As Long wMid As Integer wPid As Integer vDriverVersion As Long szPname As String * MAXPNAMELEN End Type Type MIXERLINECONTROLS cbStruct As Long dwLineID As Long dwControl As Long cControls As Long cbmxctrl As Long pamxctrl As Long End Type Function MuteIT(Optional bChange As Boolean, Optional bState As Boolean) As Boolean ' This function reads and optionally sets the state ' of the mastermute and wavemute controls ' For disabling mute BOTH mutes will be set to false. ' For enabling mute ONLY the master mute will be set Dim hMixer As Long ' mixer handle Dim hMem As Long ' memory handle Dim rc As Long Dim iErr As Integer Dim iDev As Integer Dim bMuted(1 To 2) As Boolean ' Open the mixer with deviceID 0. rc = mixerOpen(hMixer, 0, 0, 0, 0) If ((MMSYSERR_NOERROR < rc)) Then iErr = 1: GoTo theExit For iDev = 1 To 2 Dim mxc As MIXERCONTROL Dim mxl As MIXERLINE Dim mxlc As MIXERLINECONTROLS Dim mxcd As MIXERCONTROLDETAILS Dim mxcdMute As MIXERCONTROLDETAILS_BOOLEAN mxl.cbStruct = Len(mxl) Select Case iDev Case 1: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS 'MasterMute Case 2: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT 'WaveMute End Select ' Obtain a line corresponding to the component type rc = mixerGetLineInfo(hMixer, mxl, _ MIXER_GETLINEINFOF_COMPONENTTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 2: GoTo theExit mxlc.cbStruct = Len(mxlc) mxlc.dwLineID = mxl.dwLineID mxlc.dwControl = MIXERCONTROL_CONTROLTYPE_MUTE mxlc.cControls = 1 mxlc.cbmxctrl = Len(mxc) ' Allocate a buffer for the control hMem = GlobalAlloc(&H40, Len(mxc)) mxlc.pamxctrl = GlobalLock(hMem) mxc.cbStruct = Len(mxc) ' Get the control rc = mixerGetLineControls(hMixer, mxlc, _ MIXER_GETLINECONTROLSF_ONEBYTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 3: GoTo theExit 'Copy into mxc structure CopyStructFromPtr mxc, mxlc.pamxctrl, Len(mxc) GlobalFree (hMem): hMem = 0 'Get the controldetails mxcd.cbStruct = Len(mxcd) mxcd.dwControlID = mxc.dwControlID mxcd.cChannels = 1 mxcd.item = 0 mxcd.cbDetails = Len(mxcdMute) ' Allocate a buffer for the controldetails hMem = GlobalAlloc(&H40, Len(mxcdMute)) mxcd.paDetails = GlobalLock(hMem) 'Get the controldetailvalue rc = mixerGetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_GETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 4: GoTo theExit ' Copy into mxcdMute structure CopyStructFromPtr mxcdMute, mxcd.paDetails, Len(mxcdMute) GlobalFree (hMem): hMem = 0 bMuted(iDev) = CBool(mxcdMute.dwValue) If bChange Then If bMuted(iDev) < bState Then mxcdMute.dwValue = IIf(bState And iDev = 1, 1, 0) CopyPtrFromStruct mxcd.paDetails, mxcdMute, Len(mxcdMute) 'update the mixercontrol rc = mixerSetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_SETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 5: GoTo theExit bMuted(iDev) = CBool(mxcdMute.dwValue) End If End If Next theExit: If hMem Then GlobalFree (hMem) If hMixer Then mixerClose (hMixer) If iErr < 0 Then MsgBox "Error in MuteIt" & vbLf & _ "exit code:" & iErr & "Device:" & iDev Else MuteIT = (bMuted(1) Or bMuted(2)) End If End Function -- keepITcool www.XLsupport.com | keepITcool chello nl | amsterdam Mike wrote : Thanks in advance for your help. Does anyone have some VBA code that will unmute the sound for the Windows Volume control using Excel? I read some stuff in Walkenbach's book about displaying stuff from the Control Panel within Excel using windows API calls but I didn't see anything about changing the volume settings. Thanks again. |
#13
Posted to microsoft.public.excel.programming
|
|||
|
|||
API commands to turn volume control on
OK, the amended code works!
bChange True/False does not appear to make any change to any of the mute settings, regardless of the state I pass bState. However changing bState turns the master mute on/off. With a deep breath I commented the amended & un-commented the original, stepped through very slowly and crashed on this: If bChange Then '########## CopyPtrFromStruct mxcd.paDetails, mxcdMute, Len(mxcdMute) '########## End If got a nice message telling me to contact the vendor ! This time it didn't remove the vol control from system tray, maybe because I was stepping through. Regards, Peter T Peter, documentation says: NT 3.1 or later; Windows 95 or later however I've added memory locking in the change part. let me know if it stops the crashing. I can toggle the mute 1000 times and it works ok for me. please swap the If bChange..EndIf block at the bottom of the loop to: If bChange Then If bMuted(iDev) < bState Then mxcdMute.dwValue = IIf(bState And iDev = 1, 1, 0) hMem = GlobalAlloc(&H40, Len(mxcdMute)) mxcd.paDetails = GlobalLock(hMem) CopyPtrFromStruct mxcd.paDetails, mxcdMute, Len(mxcdMute) 'update the mixercontrol rc = mixerSetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_SETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 5: GoTo theExit GlobalFree (hMem): hMem = 0 bMuted(iDev) = CBool(mxcdMute.dwValue) End If End If -- keepITcool | www.XLsupport.com | keepITcool chello nl | amsterdam keepITcool wrote : I've written/tested xlXP/2003 and WinXP. While testing: first test with bChange omitted or FALSE. I think I need to look at memorylocking when I copy the changed structure back. That may be the cause of crashing. Cant test w98. But will check documentation for the apis for w98 compatibility. -- keepITcool www.XLsupport.com | keepITcool chello nl | amsterdam Peter T wrote : Hi KeepITcool some reaction - looks like amazing code ! The good news - it successfully muted the volume The bad news - it successfully crashed my Excel and removed the volume controls from system tray. Lots of fumes and smoke coming from the back my pc, or perhaps from the back of my head, difficult to tell. Had to reboot twice to get the volume controls back to tray. XL2K - W98/2 Possible reason - once before I tried some seriously good stuff from this ng which crashed in a big way. Reason was due to me not unwrapping all lines correctly, even though I thought I carefully had. Pretty sure I unwrapped yours correctly, when I have time and am "prepared" will try again and step through. Regards, Peter T "keepITcool" wrote in message t.com... Following will read AND update the mutecontrols. it will look at both the MasterMute and the WaveMute DONE!... A bit of work so I'd appreciate some reactions :) Option Explicit Private Const MMSYSERR_NOERROR As Long = 0 Private Const MAXPNAMELEN As Long = 32 Private Const MIXER_LONG_NAME_CHARS As Long = 64 Private Const MIXER_SHORT_NAME_CHARS As Long = 16 Private Const MIXER_OBJECTF_HANDLE As Long = &H80000000 Private Const MIXER_OBJECTF_MIXER As Long = &H0& Private Const MIXER_OBJECTF_HMIXER As Long = (MIXER_OBJECTF_HANDLE Or MIXER_OBJECTF_MIXER) Private Const MIXER_GETLINEINFOF_COMPONENTTYPE As Long = &H3& Private Const MIXER_GETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_SETCONTROLDETAILSF_VALUE As Long = &H0& Private Const MIXER_GETLINECONTROLSF_ONEBYTYPE As Long = &H2& Private Const MIXERLINE_COMPONENTTYPE_DST_FIRST As Long = &H0& Private Const MIXERLINE_COMPONENTTYPE_DST_SPEAKERS As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 4) Private Const MIXERLINE_COMPONENTTYPE_DST_WAVEIN As Long = (MIXERLINE_COMPONENTTYPE_DST_FIRST + 7) Private Const MIXERLINE_COMPONENTTYPE_SRC_FIRST As Long = &H1000& Private Const MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT As Long = (MIXERLINE_COMPONENTTYPE_SRC_FIRST + 8) Private Const MIXERCONTROL_CT_CLASS_SWITCH As Long = &H20000000 Private Const MIXERCONTROL_CT_SC_SWITCH_BOOLEAN As Long = &H0& Private Const MIXERCONTROL_CT_UNITS_BOOLEAN As Long = &H10000 Private Const MIXERCONTROL_CONTROLTYPE_BOOLEAN As Long = (MIXERCONTROL_CT_CLASS_SWITCH Or MIXERCONTROL_CT_SC_SWITCH_BOOLEAN Or MIXERCONTROL_CT_UNITS_BOOLEAN) Private Const MIXERCONTROL_CONTROLTYPE_MUTE As Long = (MIXERCONTROL_CONTROLTYPE_BOOLEAN + 2) Private Declare Function mixerClose Lib "winmm.dll" (ByVal hmx As Long) As Long Private Declare Function mixerOpen Lib "winmm.dll" (phmx As Long, ByVal uMxId As Long, ByVal dwCallback As Long, ByVal dwInstance As Long, ByVal fdwOpen As Long) As Long Private Declare Function mixerGetLineInfo Lib "winmm.dll" Alias "mixerGetLineInfoA" (ByVal hmxobj As Long, pmxl As MIXERLINE, ByVal fdwInfo As Long) As Long Private Declare Function mixerGetLineControls Lib "winmm.dll" Alias "mixerGetLineControlsA" (ByVal hmxobj As Long, pmxlc As MIXERLINECONTROLS, ByVal fdwControls As Long) As Long Private Declare Function mixerGetControlDetails Lib "winmm.dll" Alias "mixerGetControlDetailsA" (ByVal hmxobj As Long, pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function mixerSetControlDetails Lib "winmm.dll" (ByVal hmxobj As Long, ByRef pmxcd As MIXERCONTROLDETAILS, ByVal fdwDetails As Long) As Long Private Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long Private Declare Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Function GlobalFree Lib "kernel32" (ByVal hMem As Long) As Long Private Declare Sub CopyStructFromPtr Lib "kernel32" Alias "RtlMoveMemory" (struct As Any, ByVal ptr As Long, ByVal cb As Long) Private Declare Sub CopyPtrFromStruct Lib "kernel32" Alias "RtlMoveMemory" (ByVal ptr As Long, struct As Any, ByVal cb As Long) Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (pDst As Any, pSrc As Any, ByVal ByteLen As Long) Type MIXERCONTROL cbStruct As Long dwControlID As Long dwControlType As Long fdwControl As Long cMultipleItems As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS lMinimum As Long lMaximum As Long reserved(10) As Long End Type Type MIXERCONTROLDETAILS cbStruct As Long dwControlID As Long cChannels As Long item As Long cbDetails As Long paDetails As Long End Type Type MIXERCONTROLDETAILS_BOOLEAN dwValue As Long End Type Type MIXERLINE cbStruct As Long dwDestination As Long dwSource As Long dwLineID As Long fdwLine As Long dwUser As Long dwComponentType As Long cChannels As Long cConnections As Long cControls As Long szShortName As String * MIXER_SHORT_NAME_CHARS szName As String * MIXER_LONG_NAME_CHARS dwType As Long dwDeviceID As Long wMid As Integer wPid As Integer vDriverVersion As Long szPname As String * MAXPNAMELEN End Type Type MIXERLINECONTROLS cbStruct As Long dwLineID As Long dwControl As Long cControls As Long cbmxctrl As Long pamxctrl As Long End Type Function MuteIT(Optional bChange As Boolean, Optional bState As Boolean) As Boolean ' This function reads and optionally sets the state ' of the mastermute and wavemute controls ' For disabling mute BOTH mutes will be set to false. ' For enabling mute ONLY the master mute will be set Dim hMixer As Long ' mixer handle Dim hMem As Long ' memory handle Dim rc As Long Dim iErr As Integer Dim iDev As Integer Dim bMuted(1 To 2) As Boolean ' Open the mixer with deviceID 0. rc = mixerOpen(hMixer, 0, 0, 0, 0) If ((MMSYSERR_NOERROR < rc)) Then iErr = 1: GoTo theExit For iDev = 1 To 2 Dim mxc As MIXERCONTROL Dim mxl As MIXERLINE Dim mxlc As MIXERLINECONTROLS Dim mxcd As MIXERCONTROLDETAILS Dim mxcdMute As MIXERCONTROLDETAILS_BOOLEAN mxl.cbStruct = Len(mxl) Select Case iDev Case 1: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS 'MasterMute Case 2: mxl.dwComponentType = MIXERLINE_COMPONENTTYPE_SRC_WAVEOUT 'WaveMute End Select ' Obtain a line corresponding to the component type rc = mixerGetLineInfo(hMixer, mxl, _ MIXER_GETLINEINFOF_COMPONENTTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 2: GoTo theExit mxlc.cbStruct = Len(mxlc) mxlc.dwLineID = mxl.dwLineID mxlc.dwControl = MIXERCONTROL_CONTROLTYPE_MUTE mxlc.cControls = 1 mxlc.cbmxctrl = Len(mxc) ' Allocate a buffer for the control hMem = GlobalAlloc(&H40, Len(mxc)) mxlc.pamxctrl = GlobalLock(hMem) mxc.cbStruct = Len(mxc) ' Get the control rc = mixerGetLineControls(hMixer, mxlc, _ MIXER_GETLINECONTROLSF_ONEBYTYPE) If (MMSYSERR_NOERROR < rc) Then iErr = 3: GoTo theExit 'Copy into mxc structure CopyStructFromPtr mxc, mxlc.pamxctrl, Len(mxc) GlobalFree (hMem): hMem = 0 'Get the controldetails mxcd.cbStruct = Len(mxcd) mxcd.dwControlID = mxc.dwControlID mxcd.cChannels = 1 mxcd.item = 0 mxcd.cbDetails = Len(mxcdMute) ' Allocate a buffer for the controldetails hMem = GlobalAlloc(&H40, Len(mxcdMute)) mxcd.paDetails = GlobalLock(hMem) 'Get the controldetailvalue rc = mixerGetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_GETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 4: GoTo theExit ' Copy into mxcdMute structure CopyStructFromPtr mxcdMute, mxcd.paDetails, Len(mxcdMute) GlobalFree (hMem): hMem = 0 bMuted(iDev) = CBool(mxcdMute.dwValue) If bChange Then If bMuted(iDev) < bState Then mxcdMute.dwValue = IIf(bState And iDev = 1, 1, 0) CopyPtrFromStruct mxcd.paDetails, mxcdMute, Len(mxcdMute) 'update the mixercontrol rc = mixerSetControlDetails(hMixer, mxcd, _ MIXER_OBJECTF_HMIXER Or MIXER_SETCONTROLDETAILSF_VALUE) If (MMSYSERR_NOERROR < rc) Then iErr = 5: GoTo theExit bMuted(iDev) = CBool(mxcdMute.dwValue) End If End If Next theExit: If hMem Then GlobalFree (hMem) If hMixer Then mixerClose (hMixer) If iErr < 0 Then MsgBox "Error in MuteIt" & vbLf & _ "exit code:" & iErr & "Device:" & iDev Else MuteIT = (bMuted(1) Or bMuted(2)) End If End Function -- keepITcool www.XLsupport.com | keepITcool chello nl | amsterdam Mike wrote : Thanks in advance for your help. Does anyone have some VBA code that will unmute the sound for the Windows Volume control using Excel? I read some stuff in Walkenbach's book about displaying stuff from the Control Panel within Excel using windows API calls but I didn't see anything about changing the volume settings. Thanks again. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
How do I turn off what appears to be a stuck control key? | Excel Discussion (Misc queries) | |||
Weight & Volume | Excel Discussion (Misc queries) | |||
In Excel set up a sliding bar (similar to a volume control) | Excel Discussion (Misc queries) | |||
How do i re-download my volume control? | Excel Discussion (Misc queries) | |||
choose the right volume | Excel Programming |