Inside Macintosh: QuickTime Components /

Chapter 8 - Video Digitizer Components / Video Digitizer Components Reference

Data Types

The Buffer Structure

The VdigBufferRec data type defines a buffer structure.

typedef struct {
   PixMapHandle   dest;       /* handle to pixel map for
                                 destination buffer */
   Point          location;   /* location of video destination
                                 in pixel map */
   long           reserved;   /* reserved--set to 0 */
} VdigBufferRec;

Field Description

dest

Contains a handle to the pixel map that defines the destination buffer.

location

Specifies the location of the video destination in the pixel
map specified by the dest field. This point identifies the upper-left corner of the destination rectangle. The size and scaling of the destination rectangle are governed by the matrix and mask fields of the buffer list structure that contains this structure.

reserved

Reserved for use by Apple. Set this field to 0.