How to pass a method as callback to a Windows API call?
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by Heinrich Ulbricht
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Published on 2010-05-07T10:38:37Z
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2010/05/07
11:18 UTC
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Hi,
I'd like to pass a method of a class as callback to a WinAPI function. Is this possible and if yes, how?
Example case for setting a timer:
TMyClass = class
public
procedure TimerProc(Wnd:HWND; uMsg:DWORD; idEvent:PDWORD; dwTime:DWORD);
procedure DoIt;
end;
[...]
procedure TMyClass.DoIt;
begin
SetTimer(0, 0, 8, @TimerProc); // <-???- that's what I want to do (last param)
end;
Thanks for your help!
Edit: The goal is to specify a method of this class as callback. No procedure outside the class.
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