WinDefAVioWindowProc

This call invokes the default AVIO window procedure.

Syntax
WinDefAVioWindowProc (hwnd, msg, mp1, mp2)

Parameters

 * hwnd (HWND) - input: Window handle
 * msg (USHORT) - input: Message identity
 * mp1 (MPARAM) - input: Parameter 1
 * mp2 (MPARAM) - input: Parameter 2

Return
 * mresreply (MRESULT) - return:Message return data

Remarks
Applications using AVIO must pass all WM_SIZE messages for the window with which the AVIO presentation space is associated to this routine, using the same parameters as are received in the WM_SIZE message. This routine maintains the window size data in the presentation space, and must be called before the application accesses the window.

This call is not a replacement for WinDefWindowProc, which must also be called as usual, to process any messages that have not been handled by the application's window procedure.