Inside Macintosh: QuickTime /

Chapter 2 - Movie Toolbox / Movie Toolbox Reference

Matrix Functions /

TransformPoints

The TransformPoints function allows your application to transform a set of QuickDraw points through a specified matrix.

pascal OSErr TransformPoints (MatrixRecord *mp, Point *pt1, 
                              long count); 

mp

Contains a pointer to the transformation matrix for this operation.

pt1

Contains a pointer to the first QuickDraw point to be transformed.

count

Specifies the number of QuickDraw points to be transformed. These points must be stored immediately following the point specified by the pt1 parameter.

ERROR CODES

None

SEE ALSO

You can transform a set of QuickDraw points that are made up of fixed values by calling the TransformFixedPoints function, which is described in the next section.