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#1
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API in Excel
Can anybody give an example or link of using GDI in Excel?
Is it possible to plot a function on a form surface for example without Excel charts, just using LineTo, SetPixel etc.? Thank you in advance. Mike |
#2
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API in Excel
I have found a solution using VB6 examples and news archive:
Dim hDC As Long Dim DummyPt As PointAPI hDC = GetDC(0) Call SetPixelV(hDC, 100, 100, vbRed) Call MoveToEx(hDC, 5, 15, DummyPt) Call LineTo(hDC, 25, 15) ReleaseDC 0, hDC But instead a form it is plotting on Excel window itself (or on VBA editor). Can anybody help? What parameter should I pass to GetDC() instead of 0? Thank you in advance. Mike. "Mike510" сообщил/сообщила в новостях следующее: ... Can anybody give an example or link of using GDI in Excel? Is it possible to plot a function on a form surface for example without Excel charts, just using LineTo, SetPixel etc.? Thank you in advance. Mike |
#3
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API in Excel
Hi Mike510,
I have found a solution using VB6 examples and news archive: Dim hDC As Long Dim DummyPt As PointAPI hDC = GetDC(0) Call SetPixelV(hDC, 100, 100, vbRed) Call MoveToEx(hDC, 5, 15, DummyPt) Call LineTo(hDC, 25, 15) ReleaseDC 0, hDC But instead a form it is plotting on Excel window itself (or on VBA editor). Can anybody help? What parameter should I pass to GetDC() instead of 0? The parameter to GetDC (and ReleaseDC) should be the window handle of the form, found using the FindWindow(vbNullString,Me.Caption) API call. Regards Stephen Bullen Microsoft MVP - Excel www.oaltd.co.uk |
#4
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API in Excel
Thank you very much for your help, Mr. Bullen.
Before I have read your post, I tried GetActiveWindow(). It worked too. Should I delete hDC after releasing it or it is not necessary? "Stephen Bullen" wrote in message ... Hi Mike510, I have found a solution using VB6 examples and news archive: Dim hDC As Long Dim DummyPt As PointAPI hDC = GetDC(0) Call SetPixelV(hDC, 100, 100, vbRed) Call MoveToEx(hDC, 5, 15, DummyPt) Call LineTo(hDC, 25, 15) ReleaseDC 0, hDC But instead a form it is plotting on Excel window itself (or on VBA editor). Can anybody help? What parameter should I pass to GetDC() instead of 0? The parameter to GetDC (and ReleaseDC) should be the window handle of the form, found using the FindWindow(vbNullString,Me.Caption) API call. Regards Stephen Bullen Microsoft MVP - Excel www.oaltd.co.uk |
#5
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API in Excel
Hi Mike510,
Should I delete hDC after releasing it or it is not necessary? No, once released, that's OK. Regards Stephen Bullen Microsoft MVP - Excel www.oaltd.co.uk |
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