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Supporting the Hardware Cursor

PCI-based Power Macintosh computers implement a hardware cursor capability that graphics drivers may support. The status and control calls that graphics drivers implementing hardware cursors must respond to are as following:

• SupportsHardwareCursor status call ( csCode = 22)
• GetHardwareCursorDrawState status call ( csCode = 23)
• SetHardwareCursor control call ( csCode = 22)
• DrawHardwareCursor control call ( csCode = 23)

Only drivers that provide a hardware cursor need to respond to these calls.

A utility routine, VSLPrepareCursorForHardwareCursor, helps drivers convert QuickDraw's internal cursor representation into their hardware cursor's format. This routine is described in Hardware Cursor Utility.