Applies to: desktop apps only

Determines the visibility state of the specified window.

Syntax

BOOL WINAPI IsWindowVisible(
  __in  HWND hWnd
);

Parameters

hWnd [in]

Type: HWND

A handle to the window to be tested.

Return value

Type:

Type: BOOL

If the specified window, its parent window, its parent's parent window, and so forth, have the WS_VISIBLE style, the return value is nonzero. Otherwise, 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.

Requirements

See also

Reference

ShowWindow

Conceptual

Windows

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Build date: 5/5/2012