WM_QUIT message
Applies to: desktop apps only
Indicates a request to terminate an application, and is generated when the application calls the PostQuitMessage function. This message causes the GetMessage function to return zero.
#define WM_QUIT 0x0012
Parameters
- wParam
-
The exit code given in the PostQuitMessage function.
- lParam
-
This parameter is not used.
Return value
Type: LRESULT
This message does not have a return value because it causes the message loop to terminate before the message is sent to the application's window procedure.
Remarks
The WM_QUIT message is not associated with a window and therefore will never be received through a window's window procedure. It is retrieved only by the GetMessage or PeekMessage functions.
Do not post the WM_QUIT message using the PostMessage function; use PostQuitMessage.
Requirements
|
Minimum supported client | Windows 2000 Professional |
|---|---|
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Minimum supported server | Windows 2000 Server |
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Header |
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See also
- Reference
- GetMessage
- PeekMessage
- PostQuitMessage
- Conceptual
- Windows
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Build date: 2/3/2012
Note: WM_QUIT is not a real message. PostQuitMessage sets a flag on the message queue to indicate that a quit is pending. GetMessage tests the flag after all messages queued by PostMessage are no longer pending in the message queue. If the flag is set, GetMessage returns zero.
PeekMessage(WM_QUIT) behaves similarly, reporting WM_QUIT is not found if other queued messages are pending.
- 12/15/2007
- Gideon7
- 5/13/2011
- ALMZAGE007
