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IMediaSeeking::ConvertTimeFormat method (strmif.h)

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 ConvertTimeFormat method converts from one time format to another.

Syntax

HRESULT ConvertTimeFormat(
  [out] LONGLONG   *pTarget,
  [in]  const GUID *pTargetFormat,
  [in]  LONGLONG   Source,
  [in]  const GUID *pSourceFormat
);

Parameters

[out] pTarget

Pointer to a variable that receives the converted time.

[in] pTargetFormat

Pointer to a GUID that specifies the target format. If NULL, the current format is used. See Time Format GUIDs.

[in] Source

Time value to be converted.

[in] pSourceFormat

Pointer to a GUID that specifies the format to convert. If NULL, the current format is used. See Time Format GUIDs.

Return value

Returns an HRESULT value. Possible values include the following.

Return code Description
S_OK
 Success.
E_INVALIDARG
 Conversion between these types is not supported.
E_NOTIMPL
 Method is not supported.
E_POINTER
 NULL pointer argument.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header strmif.h (include Dshow.h)
Library Strmiids.lib

See also

Error and Success Codes

IMediaSeeking Interface