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IVideoWindow::get_WindowState method (control.h)

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[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The get_WindowState method queries whether the video window is visible, hidden, minimized, or maximized.

Syntax

HRESULT get_WindowState(
  [out] long *WindowState
);

Parameters

[out] WindowState

Receives one of the following flags:

  • SW_HIDE
  • SW_MAXIMIZE
  • SW_MINIMIZE
  • SW_SHOW
The meanings of these flags are defined by the Windows ShowWindow function.

Return value

Possible return values include the following:

Return code Description
E_POINTER
 NULL pointer.
S_OK
 Success.
VFW_E_NOT_CONNECTED
 The video renderer filter is not connected.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header control.h (include Dshow.h)
Library Strmiids.lib

See also

Error and Success Codes

IVideoWindow Interface

IVideoWindow::put_WindowState