IFullScreenVideoEx::IsModeEnabled method (amvideo.h)

Article
4/26/2023

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 IsModeEnabled method queries whether a specified display mode is enabled.

Syntax

HRESULT IsModeEnabled(
  [in] long Mode
);

Parameters

[in] Mode

Index of the display mode to query.

Return value

Returns an HRESULT value. Possible values include the following.

Return code	Description
E_INVALIDARG	Index out of range.
S_FALSE	The display mode is disabled.
S_OK	The display mode is enabled.

Remarks

The Full Screen Renderer supports a static set of display modes. By default, every mode is enabled. You can enable or disable a display mode by calling the IFullScreenVideoEx::SetEnabled. The IsEnabled method retrieves the current setting for the specified mode.

The video card on the user's system might not support every mode. The Full Screen Renderer will not use a mode that the video card does not support, even if that mode is enabled. To determine whether the card supports a particular mode, call the IFullScreenVideoEx::IsModeAvailable method. If a mode is disabled, the Full Screen Renderer will not use it, even if the card supports it.

Display modes are indexed from zero. The IFullScreenVideoEx::CountModes method returns the number of modes.

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	amvideo.h (include Dshow.h)
Library	Strmiids.lib

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