ICDECOMPRESSEX structure

The ICDECOMPRESSEX structure contains decompression parameters used with the ICM_DECOMPRESSEX message

Syntax


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:

NameDescription
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

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Vfw.h

See also

Video Compression Manager
Video Compression Structures
BITMAPINFOHEADER
ICM_DECOMPRESSEX

 

 

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