Microsoft DirectX 9.0


The IsModeAvailable method queries whether a specified display mode is available.


HRESULT IsModeAvailable(
  long Mode



[in] Index of the display mode.

Return Values

Returns an HRESULT value. Possible values include the following.

Value Description
E_INVALIDARG Index out of range.
S_FALSE The display mode is not available.
S_OK The display mode is available.


The Full Screen Renderer supports a static set of display modes. However, the video card on the user's system might not support every mode. If a particular display mode is not supported by the video card, this method returns S_FALSE. Even if a particular mode is available, it will not necessarily be used for video playback. The mode must also be compatible with the filters in the filter graph.

You can disable a display mode by calling the IFullScreenVideoEx::SetEnabled method. The Full Screen Renderer will not use a disabled mode, even if the video card supports it.

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

See Also