Preroll property. If TRUE, this sample is for preroll only and should not be displayed.

HRESULT IsPreroll(void);



Return Values

Returns S_OK if the sample is a preroll sample, or S_FALSE if not; otherwise, returns an HRESULT error value.

While calling SetPreroll with a value of TRUE (1) sets the preroll property, calling IsPreroll on a preroll sample returns S_OK (0).


DirectShow applications and DirectShow filters have different include file and link library requirements. See Setting Up the Build Environment for more information.

OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.

See Also

IMediaSample Interface

Last updated on Wednesday, April 13, 2005

© 2005 Microsoft Corporation. All rights reserved.