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ICDECOMPRESSEX

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The ICDECOMPRESSEX structure contains decompression parameters used with the ICM_DECOMPRESSEX message

typedef struct { 
    DWORD              dwFlags; 
    LPBITMAPINFOHEADER lpbiSrc; 
    LPVOID             lpSrc; 
    LPBITMAPINFOHEADER lpbiDst; 
    LPVOID             lpDst; 
    int                xDst; 
    int                yDst; 
    int                dxDst; 
    int                dyDst; 
    int                xSrc; 
    int                ySrc; 
    int                dxSrc; 
    int                dySrc; 
} ICDECOMPRESSEX;

Members

dwFlags

Applicable flags. The following values are defined:

ICDECOMPRESS_HURRYUP

Tries to decompress at a faster rate. When an application uses this flag, the driver should buffer the decompressed data but not draw the image.

ICDECOMPRESS_NOTKEYFRAME

Current frame is not a key frame.

ICDECOMPRESS_NULLFRAME

Current frame does not contain data and the decompressed image should be left the same.

ICDECOMPRESS_PREROLL

Current frame precedes the point in the movie where playback starts and, therefore, will not be drawn.

ICDECOMPRESS_UPDATE

Screen is being updated or refreshed.

lpbiSrc

Pointer to a BITMAPINFOHEADER structure containing the input format.

lpSrc

Pointer to a buffer containing the input data.

lpbiDst

Pointer to a BITMAPINFOHEADER structure containing the output format.

lpDst

Pointer to a buffer where the driver should write the decompressed image.

xDst

The x-coordinate of the destination rectangle within the DIB specified by lpbiDst.

yDst

The y-coordinate of the destination rectangle within the DIB specified by lpbiDst.

dxDst

Width of the destination rectangle.

dyDst

Height of the destination rectangle.

xSrc

The x-coordinate of the source rectangle within the DIB specified by lpbiSrc.

ySrc

The y-coordinate of the source rectangle within the DIB specified by lpbiSrc.

dxSrc

Width of the source rectangle.

dySrc

Height of the source rectangle.

Requirements

**  Windows NT/2000/XP:** Included in Windows NT 3.1 and later.
**  Windows 95/98/Me:** Included in Windows 95 and later.
**  Header:** Declared in Vfw.h.

See Also

Video Compression Manager, Video Compression Structures, BITMAPINFOHEADER, ICM_DECOMPRESSEX