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Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.

CWnd::PostMessage 

Places a message in the window's message queue and then returns without waiting for the corresponding window to process the message.


BOOL PostMessage(
   UINT message,
   WPARAM wParam = 0,
   LPARAM lParam = 0 
);

Parameters

message

Specifies the message to be posted.

wParam

Specifies additional message information. The content of this parameter depends on the message being posted.

lParam

Specifies additional message information. The content of this parameter depends on the message being posted.

Nonzero if the message is posted; otherwise 0.

Messages in a message queue are retrieved by calls to the GetMessage or PeekMessage Windows function.

The Windows PostMessage function can be used to access another application.

See the example for AfxGetMainWnd.

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