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IsWindowVisible info  Overview  Group

The IsWindowVisible function retrieves the visibility state of the specified window.

BOOL IsWindowVisible(

    HWND hWnd 

// handle of window

   );

Parameters

hWnd
Identifies the window.

Return Values

If the specified window and its parent window have the WS_VISIBLE style, the return value is nonzero.

If the specified window and its parent window do not have the WS_VISIBLE style, the return value is zero. Because the return value specifies whether the window has the WS_VISIBLE style, it may be nonzero even if the window is totally obscured by other windows.

Remarks

The visibility state of a window is indicated by the WS_VISIBLE style bit. When WS_VISIBLE is set, the window is displayed and subsequent drawing into it is displayed as long as the window has the WS_VISIBLE style.

Any drawing to a window with the WS_VISIBLE style will not be displayed if the window is obscured by other windows or is clipped by its parent window.

See Also

ShowWindow 

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