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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.

Return Value

Nonzero if the message is posted; otherwise 0.

Remarks

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.

Example

See the example for AfxGetMainWnd.

Requirements

Header: afxwin.h

See Also

Reference

CWnd Class

Hierarchy Chart

GetMessage

PeekMessage

PostMessage

PostThreadMessage

CWnd::SendMessage

Concepts

CWnd Members