IMediaPosition::get_CurrentPosition

  • Artigo
 
Microsoft DirectShow 9.0

IMediaPosition::get_CurrentPosition

The get_CurrentPosition method retrieves the current position, relative to the total duration of the stream.

Syntax

  HRESULT get_CurrentPosition(
  REFTIME *pllTime
);

Parameters

pllTime

[out] Pointer to a variable that receives the current position, in seconds.

Return Values

Returns an HRESULT value. Possible values include the following.

Return code Description
S_OK Success.
E_NOTIMPL Not implemented.
E_POINTER NULL pointer argument.

Remarks

This method returns the current position that playback has reached. The value includes adjustments for the playback rate and starting time. For example, if the start time is 5 seconds, the playback rate is 2.0, and you run the graph for four seconds, the current position is 5 + (4 x 2.0) = 13.0 seconds.

If the graph is paused or stopped, the current position is the point at which playback will resume.

Requirements

Header: Declared in Control.h; include Dshow.h.

Library: Use Strmiids.lib.

See Also