CPosPassThru::ForceRefresh

  • 项目

Releases any cached interfaces on the upstream pin.

HRESULT ForceRefresh( );

Parameters

None.

Return Values

Returns S_OK.

Remarks

For efficiency, the CPosPassThru class can cache the IMediaPosition interface of the connected upstream output pin. This method releases any cached interface pointers and forces them to be obtained again through QueryInterface if needed.

Presently, this class does not cache the upstream IMediaPosition so this member function is not necessary. It is left in for future flexibility.

Requirements

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.
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Last updated on Wednesday, April 13, 2005

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