WM_WINDOWPOSCHANGED
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4/8/2010
This message is sent to a window whose size, position, or place in the z-order has changed as a result of a call to the SetWindowPos function or another window-management function.
Syntax
WM_WINDOWPOSCHANGED lpwp = (LPWINDOWPOS) lParam;
Parameters
- lpwp
Long pointer to a WINDOWPOS structure that contains information about the window's new size and position.
Return Value
An application should return zero if it processes this message.
- Default Action
The DefWindowProc function sends the WM_SIZE and WM_MOVE messages to the window.
Remarks
The WM_SIZE and WM_MOVE messages are not sent if an application handles the WM_WINDOWPOSCHANGED message without calling DefWindowProc. It is more efficient to perform any move or size change processing during the WM_WINDOWPOSCHANGED message without calling DefWindowProc.
Requirements
| Header | winuser.h |
| Windows Embedded CE | Windows CE 1.0 and later |
| Windows Mobile | Windows Mobile Version 5.0 and later |
See Also
Reference
DefWindowProc
SetWindowPos
WINDOWPOS
WM_MOVE
WM_SIZE
Windows Messages