CSourceSeeking.GetPreroll method
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 GetPreroll method retrieves the preroll time. This method implements the IMediaSeeking::GetPreroll method.
Syntax
HRESULT GetPreroll(
LONGLONG *pPreroll
);
Parameters
-
pPreroll
-
Pointer to a variable that receives the preroll time. The value is set to zero.
Return value
Returns one of the HRESULT values listed in the following table.
| Return code | Description |
|---|---|
|
Success |
|
NULL pointer value |
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|