WM_TIMER - Remarks

This message is always queued and is processed specially by the WinGetMsg and WinPeekMsg calls, as follows:

• Timers are processed only by the WinGetMsg and WinPeekMsg calls.

• A timer posts only one WM_TIMER message at a time.

• WM_TIMER messages are queued lower than all other messages except WM_SEM4 messages.