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QuickDraw 3D RAVE / QuickDraw 3D RAVE Reference

QuickDraw 3D RAVE Routines / Private Draw Context Methods

TQAEngineGestalt

A drawing engine must define a method to return information about its capabilities.

typedef TQAError (*TQAEngineGestalt) (
                                      TQAGestaltSelector selector, 
                                      void *response);

selector

A selector that determines what kind of information is to be returned about your drawing engine. See "Gestalt Selectors" (page 1-57) for complete information about the available selectors and the information you should return.

response

A pointer to a buffer into which the returned information is to be copied. The calling application is responsible for allocating this buffer. The size and meaning of the data to be copied depends on the selector passed in the selector parameter.

DESCRIPTION

Your TQAEngineGestalt function is called whenever an application calls QAEngineGestalt. Your function should return, in the buffer pointed to by the response parameter, information about features of the type specified by the selector parameter.