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| Microsoft DirectShow 9.0 |
IMediaSeeking::GetCapabilities
The GetCapabilities method retrieves all the seeking capabilities of the stream.
Syntax
HRESULT GetCapabilities( DWORD *pCapabilities );
Parameters
pCapabilities
[out] Pointer to a variable that receives a bitwise combination of AM_SEEKING_SEEKING_CAPABILITIES flags.
Return Values
Returns an HRESULT value. Possible values include the following.
| Return code | Description |
| S_OK | Success. |
| E_POINTER | NULL pointer argument. |
Remarks
This method returns information on all the seeking capabilities of the stream. Examine pCapabilities by performing a separate bitwise-AND operation on each AM_SEEKING_SEEKING_CAPABILITIES value you are interested in.
DWORD dwCaps = 0;
pMediaSeeking->GetCapabilities(&dwCaps);
if (dwCaps & AM_SEEKING_CanGetCurrentPos)
{
// The stream can seek to the current position.
}
if (dwCaps & AM_SEEKING_CanPlayBackwards)
{
// The stream can play backward.
}
Requirements
Header: Declared in Strmif.h; include Dshow.h.
Library: Use Strmiids.lib.
See Also