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This structure contains information about the size and position of a window.
typedef struct _WINDOWPOS { HWND
hwnd
; HWND
hwndInsertAfter
; int
x
; int
y
; int
cx
; int
cy
; UINT
flags
; } WINDOWPOS;
Members
- hwnd
- Handle to the window.
- hwndInsertAfter
- Specifies the position of the window in z-order (front-to-back position). This member can be a handle to the window behind which this window is placed, or can be one of the special values listed with the SetWindowPosfunction.
- x
- Specifies the position of the left edge of the window.
- y
- Specifies the position of the top edge of the window.
- cx
- Specifies the window width, in pixels.
- cy
- Specifies the window height, in pixels.
- flags
- Specifies the window position. It is one of the following
values:
Value Description SWP_DRAWFRAME Draws a frame (defined in the window's class description) around the window. SWP_FRAMECHANGED Sends a WM_NCCALCSIZE message to the window, even if the window's size is not being changed. If this flag is not specified, WM_NCCALCSIZE is sent only when the window's size is being changed. SWP_HIDEWINDOW Hides the window. SWP_NOACTIVATE Does not activate the window. If this flag is not set, the window is activated and moved to the top of either the topmost or non-topmost group (depending on the setting of the hWndInsertAftermember). SWP_NOCOPYBITS Discards the entire contents of the client area. If this flag is not specified, the valid contents of the client area are saved and copied back into the client area after the window is sized or repositioned. SWP_NOMOVE Retains the current position (ignores the Xand Ymembers). SWP_NOOWNERZORDER Does not change the owner window's position in the Z order. SWP_NOREDRAW Does not redraw changes. If this flag is set, no repainting of any kind occurs. This applies to the client area, the nonclient area (including the title bar and scroll bars), and any part of the parent window uncovered as a result of the window being moved. When this flag is set, the application must explicitly invalidate or redraw any parts of the window and parent window that need redrawing. SWP_NOREPOSITION Same as the SWP_NOOWNERZORDER flag. SWP_NOSENDCHANGING Prevents the window from receiving the WM_WINDOWPOSCHANGING message. SWP_NOSIZE Retains the current size (ignores the cxand cymembers). SWP_NOZORDER Retains the current z-order (ignores the hWndInsertAftermember). SWP_SHOWWINDOW Displays the window. Windows CE Remarks
In Windows CE, the WINDOWPOSstructure does not support the following flags in the Flagsmember.
- SWP_DRAWFRAME
- SWP_NOCOPYBITS
- SWP_NOOWNERZORDER
- SWP_NOREDRAW
- SWP_NOREPOSITION
- SWP_NOSENDCHANGING
Windows CE versions 2.0 and later support all flags.
Requirements
Runs on Versions Defined in Include Link to Windows CE OS 1.0 and later Winuser.h Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.
See Also