This function determines whether the current window procedure is processing a message that was sent from another thread (in the same process or a different process) by a call to the SendMessage function.
At a Glance
| Header file: | Winuser.h |
| Windows CE versions: | 2.12 and later |
Syntax
BOOL InSendMessage(VOID);
Return Values
If the window procedure is processing a message sent to it from another thread using the SendMessage function, the return value is nonzero.
If the window procedure is not processing a message sent to it from another thread using the SendMessage function, the return value is zero.