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Can you make your WndProc a member function of a class?

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Ive tried and tried and tried, but i cant get it to work. THe compiler cant cast the member function pointer to a regular function pointer, and i cant seem to help it. Any known ways to do this? ----------------------------- The sad thing about artificial intelligence is that it lacks artifice and therefore intelligence.

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Make you function static, and put a pointer to you window object somewhere. In the static function find that pointer and call the non-static window proc.

If you only have 1 window, make a static (global) variable in your module.
If you need more windows, make a map (STL) of the HWND to your pointer.

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- There is a hidden 'this' pointer passed to all member functions of a class.

- There is no way for windows to pass this arguement to the window procedure. If you did manage to get windows to call a member function then A: your parameters would be in the wrong place on the stack for the member function to work with them. B: The member function couldn't access any of the member variables since it would have no idea which object to work on.

Edited by - B-Barlow on December 30, 2001 1:34:11 AM

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In the header file:

In the cpp file:
LRESULT CALLBACK <class name>::WndProc( HWND hWnd,
UINT uMsg,
WPARAM wParam,
LPARAM lParam)


and when you register your window class:
wc.lpfnWndProc = (WNDPROC) WndProc;


Edited by - Shabadoo on December 30, 2001 6:41:09 AM

Edited by - Shabadoo on December 30, 2001 6:43:42 AM

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