MoveWindow

The MoveWindow function changes the position and dimensions of the specified window. For a top-level window, the position and dimensions are relative to the upper-left corner of the screen. For a child window, they are relative to the upper-left corner of the parent window's client area.

BOOL MoveWindow(

HWND hWnd,	// handle of window
int X,	// horizontal position
int Y,	// vertical position
int nWidth,	// width
int nHeight,	// height
BOOL bRepaint	// repaint flag
);

Parameters

hWnd

Identifies the window.

X

Specifies the new position of the left side of the window.

Y

Specifies the new position of the top of the window.

nWidth

Specifies the new width of the window.

nHeight

Specifies the new height of the window.

bRepaint

Specifies whether the window is to be repainted. If this parameter is TRUE, the window receives a WM_PAINT message. If the parameter is FALSE, 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 moving a child window. If this parameter is FALSE, the application must explicitly invalidate or redraw any parts of the window and parent window that need redrawing.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero.

Remarks

If the bRepaint parameter is TRUE, Windows sends the WM_PAINT message to the window procedure immediately after moving the window (that is, the MoveWindow function calls the UpdateWindow function). If bRepaint is FALSE, Windows places the WM_PAINT message in the message queue associated with the window. The message loop dispatches the WM_PAINT message only after dispatching all other messages in the queue.

MoveWindow sends WM_WINDOWPOSCHANGING, WM_WINDOWPOSCHANGED, WM_MOVE, WM_SIZE, and WM_NCCALCSIZE messages to the window.

See Also

SetWindowPos, UpdateWindow, WM_GETMINMAXINFO, WM_PAINT

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