The WM_ENTERSIZEMOVE message is sent one time to a window after it enters the moving or sizing modal loop. The window enters the moving or sizing modal loop when the user clicks the window's title bar or sizing border, or when the window passes the WM_SYSCOMMAND message to the DefWindowProc function and the wParam parameter of the message specifies the SC_MOVE or SC_SIZE value. The operation is complete when DefWindowProc returns.
The system sends the WM_ENTERSIZEMOVE message regardless of whether the dragging of full windows is enabled.
A window receives this message through its WindowProc function.
Syntax
WM_ENTERSIZEMOVE
WPARAM wParam
LPARAM lParam;
Parameters
- wParam
-
This parameter is not used.
- lParam
-
This parameter is not used.
Return Value
An application should return zero if it processes this message.
Notification Requirements
| Minimum DLL Version |
None |
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| Header | Declared in Winuser.h, include Windows.h |
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| Minimum operating systems |
Windows 95, Windows NT 3.51 |
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See Also