WinDefSecondaryWindowProc
This function provides the default behavior for a secondary window.
Syntax
#define INCL_SW #include <os2.h> HWND hwnd; /* Dialog window handle. */ ULONG msg; /* Message identity. */ MPARAM mp1; /* Parameter 1. */ MPARAM mp2; /* Parameter 2. */ MRESULT rc; /* Returns MRESULT. */ rc = WinDefSecondaryWindowProc(hwnd, msg, mp1, mp2);
Parameters
- hwnd (HWND) - input
- Dialog window handle.
- msg (ULONG) - input
- Message identity.
- mp1 (MPARAM) - input
- Parameter 1.
- mp2 (MPARAM) - input
- Parameter 2.
Return Value
- rc (MRESULT) - returns
- Returns the MRESULT defined by the message passed to this function.
Remarks
A secondary window procedure must reference this function for messages that are not handled explicitly. Refer to WinDefDlgProc in the IBM OS/2 Presentation Manager Programming Reference.
Example Code
The following code illustrates how to provide default behavior for a secondary window.
#define INCL_SW
#include <os2me.h>
MRESULT MyDlgProc (HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2)
{
switch (msg) {
/* Handle specific messages here */
}
/* Call WinDefSecondaryWindowProc for default processing */
return (WinDefSecondaryWindowProc (hwnd, msg, mp1, mp2));
}