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WINDOWPOS (Windows Embedded CE 6.0)

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1/6/2010

This structure contains information about the size and position of a window.

Syntax

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 SetWindowPos function.
  • 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

    Causes the operating system to recalculate the size and position of the windows client area, even if the window size is not being changed. If this flag is not specified, the client area is recalculated only when the size or position of the window changes.

    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 hWndInsertAfter member).

    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 X and Y members).

    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 cx and cy members).

    SWP_NOZORDER

    Retains the current z-order (ignores the hWndInsertAfter member).

    SWP_SHOWWINDOW

    Displays the window.

Remarks

In Windows Embedded CE, the WINDOWPOS structure does not support the following flags in the Flags member.

  • SWP_DRAWFRAME
  • SWP_NOCOPYBITS
  • SWP_NOOWNERZORDER
  • SWP_NOREDRAW
  • SWP_NOREPOSITION
  • SWP_NOSENDCHANGING

Windows CE 2.0 and later support all flags.

Requirements

Header winuser.h
Windows Embedded CE Windows CE 1.0 and later

See Also

Reference

Windows Structures
SetWindowPos