Hess, Philip J schreef:
Felipe's implementation, which instead stores the object method's code
and data pointers (4 bytes) in the window's user data, which is
retrieved by the actual callback function to reconstitute the object
method and call it, is cleaner and potentially cross-platform:
SetWindowLong(hWnd, GWL_USERDATA, PtrInt(PMethod));
He should use SetWindowLongPtr on win64, otherwise he looses 32 bits.
Vincent
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