IMFPresentationDescriptor::SelectStream method (mfidl.h)

Selects a stream in the presentation.

Syntax

HRESULT SelectStream(
  [in] DWORD dwDescriptorIndex
);

Parameters

[in] dwDescriptorIndex

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

Return value

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

Remarks

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 with Service Pack 2 (SP2) and later.
• Windows XP Media Center Edition 2005 with KB900325 (Windows XP Media Center Edition 2005) and KB925766 (October 2006 Update Rollup for Windows XP Media Center Edition) installed.

Requirements

See also

IMFPresentationDescriptor

Presentation Descriptors