ICDRAWBEGIN

The ICDRAWBEGIN structure contains decompression parameters used with the ICM_DRAW_BEGIN message.

typedef struct { 
    DWORD              dwFlags; 
    HPALETTE           hpal; 
    HWND               hwnd; 
    HDC                hdc; 
    int                xDst; 
    int                yDst; 
    int                dxDst; 
    int                dyDst; 
    LPBITMAPINFOHEADER lpbi; 
    int                xSrc; 
    int                ySrc; 
    int                dxSrc; 
    int                dySrc; 
    DWORD              dwRate; 
    DWORD              dwScale; 
} ICDRAWBEGIN;

Members

dwFlags

Applicable flags. The following values are defined:

ICDRAW_ANIMATE: Application can animate the palette.
ICDRAW_BUFFER: Buffers this data off-screen; it will need to be updated.
ICDRAW_CONTINUE: Drawing is a continuation of the previous frame.
ICDRAW_FULLSCREEN: Draws the decompressed data on the full screen.
ICDRAW_HDC: Draws the decompressed data to a window or a DC.
ICDRAW_MEMORYDC: DC is off-screen.
ICDRAW_QUERY: Determines if the decompressor can handle the decompression. The driver does not actually decompress the data.
ICDRAW_RENDER: Renders but does not draw the data.
ICDRAW_UPDATING: Current frame is being updated rather than played.

hpal

Handle of the palette used for drawing.

hwnd

Handle of the window used for drawing.

hdc

Handle of the DC used for drawing. Specify NULL to use a DC associated with the specified window.

xDst, yDst

The x- and y-coordinates of the destination rectangle.

dxDst, dyDst

Width and height of the destination rectangle.

lpbi

Address of a BITMAPINFOHEADER structure containing the input format.

xSrc, ySrc

The x- and y-coordinates of the source rectangle.

dxSrc, dySrc

Width and height of the source rectangle.

dwRate

Decompression rate in an integer format. To obtain the rate in frames per second, divide this value by the value in dwScale.

dwScale

Value used to scale dwRate to frames per second.

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in vfw.h.
  Import Library: Use vfw32.lib.

ICDRAWBEGIN

Members

QuickInfo

See Also