Returns the filter mode.

Prototype declaration:

> `

>     KMSTATUS KMAPI
>     kmGetDisplayFilterMode(
>     		OUT PKMDWORD        pDisplayFilterMode,
>     		IN  PKMSURFACEDESC  pSurfaceDesc
>     );

> `

Description:

>     This function returns the filter mode.

Parameters:

>     pDisplayFilterMode(output)

>     pSurfaceDesc(input)
>             This parameter is a pointer to KMSURFACEDESC.

Return values:

> Value | Explanation
> KMSTATUS_SUCCESS | Success