Exposes methods that are called by IImageDecodeFilter during a decode operation.
GetSurface Returns a drawing surface of the requested size and format. OnBeginDecode Called by the filter to determine which image formats are supported. OnBitsComplete Called by the filter after image bits have been downloaded. OnDecodeComplete Called by the filter after image has been decoded. OnPalette Called by the filter when the palette associated with surface changes. OnProgress Called by filter as incremental progress is made during decode.
Stock Implementation None Custom Implementation Yes Inherits from IUnknown Header and IDL files ocmm.h, ocmm.idl Minimum availability Internet Explorer 5.5 Minimum operating systems Windows 95, Windows NT 4.0