CMediaSample::IsPreroll
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4/8/2010
Preroll property. If TRUE, this sample is for preroll only and should not be displayed.
Syntax
HRESULT IsPreroll(void);
Parameters
None.
Return Value
Returns S_OK if the sample is a preroll sample and S_FALSE if not; otherwise, returns an HRESULT error value.
Remarks
This member function implements the IMediaSample::IsPreroll method.
It returns the value of the m_dwFlags Sample_Preroll property flag. Preroll samples are not meant to be rendered.
Requirements
| Windows Embedded CE | Windows CE 2.12 and later |
| Windows Mobile | 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 |