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QuickDraw 3D RAVE / QuickDraw 3D RAVE Reference

QuickDraw 3D RAVE Routines / Public Draw Context Methods

TQADrawBitmap

A drawing engine must define a method to draw bitmaps into a draw context.

typedef void (*TQADrawBitmap) (
                               const TQADrawContext *drawContext, 
                               const TQAVGouraud *v, 
                               TQABitmap *bitmap);

drawContext

A draw context.

v

A Gouraud vertex.

bitmap

A pointer to a bitmap (returned by a previous call to QABitmapNew).

DESCRIPTION

Your TQADrawBitmap function should draw the bitmap specified by the bitmap parameter into the draw context specified by the drawContext parameter, with the upper-left corner of the bitmap located at the point specified by the v parameter. The v parameter can contain negative values in its x or y fields, so you can position upper-left corner of the bitmap outside the draw context rectangle. This allows you to move the bitmap smoothly off any edge of the draw context.