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VB Forum / COM / April 2005ocx callback function convert VC++ to VB6
Hi all, I'm using a 3rd part component (ocx) in vb6 and I have an example (see below) in VC++ how to use a callback function. I need to convert that example in VB6, any help would be appreciate. Thanks, Juky ....... // define callback function. int GetBuffer(int s, int w, int h, LPBYTE p) { ... // any code return 0; } ...... myOCX.SetCallBack((long)GetBuffer); You'll need to define the function in a BAS module and it would look something like this. Function GetBuffer(ByVal s As Long, ByVal w As Long, ByVal h As Long, ByVal p As Long) As Long  SignatureJonathan Wood SoftCircuits http://www.softcircuits.com Available for consulting: http://www.softcircuits.com/jwood/resume.htm > Hi all, > I'm using a 3rd part component (ocx) in vb6 and I have an example (see [quoted text clipped - 15 lines] > > myOCX.SetCallBack((long)GetBuffer); Hi convert the code in this way: Function GetBuffer(ByVal s As Long, ByVal w As Long, ByVal h As Long, ByValp As Long) As Long ....... End Function myOCX.SetCallBack (GetBuffer) ' define callback function. but I have compile error in the last espression, due to missing parameters in GetBuffer !!!!! Juky > You'll need to define the function in a BAS module and it would look > something like this. [quoted text clipped - 27 lines] > > > > myOCX.SetCallBack((long)GetBuffer); > Hi convert the code in this way: > [quoted text clipped - 9 lines] > > Juky Try: myOCX.SetCallBack AddressOf GetBuffer SignatureJim Hi Jim, I tried your solution but still compile error. Still no idea how to convert that code frm VC++ to VB6! Juky > > Hi convert the code in this way: > > [quoted text clipped - 13 lines] > > myOCX.SetCallBack AddressOf GetBuffer |
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