Inside Macintosh: QuickTime /

Chapter 2 - Movie Toolbox / Movie Toolbox Reference

Matrix Functions /

TransformRgn

The TransformRgn function allows your application to apply a specified matrix to a region.

pascal OSErr TransformRgn (MatrixRecordPtr mp, RgnHandle r);

mp

Points to the matrix for this operation. The TransformRgn function currently supports only translating and scaling operations.

r

Specifies the region to be transformed. The TransformRgn function transforms each point in the region according to the contents of the specified matrix.

ERROR CODES

Memory Manager errors