IVideoWindow::get_FullScreenMode method (control.h)

Article
02/22/2024

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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_FullScreenMode method queries whether the video renderer is in full-screen mode.

Syntax

HRESULT get_FullScreenMode(
  [out] long *FullScreenMode
);

Parameters

[out] FullScreenMode

Receives the value OATRUE if the video renderer is in full-screen mode, or OAFALSE otherwise.

Return value

Possible return values include the following:

Return code	Description
E_NOTIMPL	This filter does not support full-screen mode.
E_POINTER	NULL pointer.
S_OK	Success.
VFW_E_NOT_CONNECTED	The video renderer filter is not connected.

Remarks

When the Filter Graph Manager is switching to full-screen mode, it calls this method to determine whether the current video renderer supports this mode. If the renderer does not have inherent support for full-screen playback, it should return E_NOTIMPL. If it does, it should return S_OK, and also return the correct value in the FullScreenMode parameter.

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