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4/8/2010

This method determines which capabilities exist on a media stream by applying seeking capability flags and checking the returned value.

Syntax 

HRESULT CheckCapabilities(
  DWORD* 
pCapabilities
);

Parameters

pCapabilities

[in, out] Pointer to an AM_SEEKING_SEEKING_CAPABILITIESenumeration type containing the seeking capabilities flags to apply.

These flags can be any combination of the following:

  • AM_SEEKING_CanSeekAbsolute

  • AM_SEEKING_CanSeekForwards

  • AM_SEEKING_CanSeekBackwards

  • AM_SEEKING_CanGetCurrentPos

  • AM_SEEKING_CanGetStopPos

  • AM_SEEKING_CanGetDuration

  • AM_SEEKING_CanPlayBackwards

  • AM_SEEKING_CanDoSegments

  • AM_SEEKING_Source

Return Value

Returns S_OK if all capabilities in pCapabilitiesare present, S_FALSE if some are present, or E_FAIL if none are present.

Remarks

This method determines which seeking capabilities are present on a media stream. It applies the pCapabilitiesflags using a bitwise-AND operation, and returns a value to indicate whether they match the capabilities of the media stream.

The value of pCapabilitiesis accumulated between successive calls to this method so that the value of pCapabilitiescan be checked when an S_FALSE value is returned to find the capability that does not match.

Requirements

Windows Embedded CE Windows CE 2.12 and later
Windows Mobile Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment,
Version 2.12 requires DXPAK 1.0 or later

See Also