共用方式為


IStreamSelectorStatics::GetStreamPropertiesAsync method (windows.media.streaming.h)

When implemented gets the properties of the stream asynchronously.

Syntax

HRESULT GetStreamPropertiesAsync(
  [in]          ABI::Windows::Storage::IStorageFile                      *storageFile,
  [in]          ABI::Windows::Foundation::Collections::IPropertySet      *selectorProperties,
  [out, retval] __FIAsyncOperation_1___FIVectorView_1___F__CIPropertySet **value
);

Parameters

[in] storageFile

Windows.Storage.StorageFile

[in] selectorProperties

An IPropertySet containing any of the following allowed values.

  • STREAM_SELECTOR_PROPERTY_BEST_URL_ONLY
  • STREAM_SELECTOR_PROPERTY_HTTP_ONLY
  • STREAM_SELECTOR_PROPERTY_LINK_BANDWIDTH
  • STREAM_SELECTOR_PROPERTY_PREFER_NO_TRANSCODING
  • STREAM_SELECTOR_PROPERTY_MAX_HEIGHT
  • STREAM_SELECTOR_PROPERTY_MAX_WIDTH

[out, retval] value

Return value

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

Return code Description
S_OK
The method succeeded.

Requirements

Requirement Value
Target Platform Windows
Header windows.media.streaming.h

See also

IStreamSelectorStatics