WM_CANCELMODE message
Sent to cancel certain modes, such as mouse capture. For example, the system sends this message to the active window when a dialog box or message box is displayed. Certain functions also send this message explicitly to the specified window regardless of whether it is the active window. For example, the EnableWindow function sends this message when disabling the specified window.
A window receives this message through its WindowProc function.
#define WM_CANCELMODE 0x001F
Parameters
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wParam
-
This parameter is not used.
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lParam
-
This parameter is not used.
Return value
Type: LRESULT
If an application processes this message, it should return zero.
Remarks
When the WM_CANCELMODE message is sent, the DefWindowProc function cancels internal processing of standard scroll bar input, cancels internal menu processing, and releases the mouse capture.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|
See also
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Reference
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Conceptual