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Sub ErrorOut()
'Code that errors
On Error GoTo Handler:
'Other code
Exit Sub
Handler:
ErrMsg = Error(Err.Number)
MsgBox "Error Is: " & ErrMsg
End Sub


"LunaMoon" wrote:

Hi all,

I am using VC++ to develop some XLL file for use in Excel 2003.

Of course there are bugs.

The cell display "#NUM!".

But in VC++ I've already thrown exception with error message:

if (a!=b)
throw Constructor ("a must be equal b.", "myclass")...

Why couldn't I see the error message in Excel?

Thanks!