IWMWriterPostView::GetPostViewFormat method (wmsdkidl.h)

Artigo
4/26/2023

[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The GetPostViewFormat method retrieves the media properties for the specified output stream and output format.

Syntax

HRESULT GetPostViewFormat(
  [in]  WORD          wStreamNumber,
  [in]  DWORD         dwFormatNumber,
  [out] IWMMediaProps **ppProps
);

Parameters

[in] wStreamNumber

WORD containing the stream number.

[in] dwFormatNumber

DWORD containing the format number.

[out] ppProps

Pointer to a pointer to an IWMMediaProps interface.

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.
E_INVALIDARG	NULL value passed in to ppProps.
E_OUTOFMEMORY	Not enough memory to complete the task.

Remarks

This method can be used along with GetPostViewFormatCount to determine all possible format types supported by this output on the reader.

Requirements

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only],Windows Media Format 7 SDK, or later versions of the SDK
Minimum supported server	Windows 2000 Server [desktop apps only]
Target Platform	Windows
Header	wmsdkidl.h (include Wmsdk.h)
Library	Wmvcore.lib; WMStubDRM.lib (if you use DRM)

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