IMFPresentationDescriptor::SelectStream Method

Selects a stream in the presentation.

Syntax

HRESULT SelectStream(
  [in]  DWORD dwDescriptorIndex
);

Parameter

• dwDescriptorIndex [in]
  The stream number to select, indexed from zero. To find the number of streams in the presentation, call IMFPresentationDescriptor::GetStreamDescriptorCount.

Rückgabewert

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Hinweise

If a stream is selected, the media source will generate data for that stream. The media source will not generated data for deselected streams. To deselect a stream, call IMFPresentationDescriptor::DeselectStream.

To query whether a stream is selected, call IMFPresentationDescriptor::GetStreamDescriptorByIndex.

This interface is available on the following platforms if the Windows Media Format 11 SDK redistributable components are installed:

• Windows XP mit Service Pack 2 (SP2) und höher.
• Windows XP Media Center Edition 2005 with KB900325 (Windows XP Media Center Edition 2005) and KB925766 (Oktober 2006 Updaterollup für Windows XP Media Center Edition) installed.

Anforderungen

Siehe auch

IMFPresentationDescriptor

Presentation Descriptors