IMediaParamInfo::GetSupportedTimeFormat method (medparam.h)

Статья
4/26/2023

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The GetSupportedTimeFormat method retrieves a supported time format.

Syntax

HRESULT GetSupportedTimeFormat(
  [in]  DWORD dwFormatIndex,
  [out] GUID  *pguidTimeFormat
);

Parameters

[in] dwFormatIndex

Index of the time format to retrieve.

[out] pguidTimeFormat

Pointer to a variable that receives a time format GUID.

Return value

Returns an HRESULT value. Possible values include the following.

Return code	Description
E_INVALIDARG	Index out of range.
E_POINTER	NULL pointer argument.
S_OK	Success.

Remarks

Call the GetNumTimeFormats method to retrieve the number of time formats that the object supports.

Requirements

Requirement	Value
Target Platform	Windows
Header	medparam.h
Library	Dmoguids.lib

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