13 Picking in a View

13 Q3View_StartPicking

You can use the Q3View_StartPicking function to start picking in a view.

TQ3Status Q3View_StartPicking (
TQ3ViewObject view,
TQ3PickObject pick);
view A view.
pick A pick object.

DESCRIPTION


The Q3View_StartPicking function begins the process of picking in the view specified by the view parameter, using the pick object specified by the pick parameter. After calling Q3View_StartPicking, you specify the model (for instance, by calling Q3Geometry_Submit). When you have completely specified that model, you should call Q3View_EndPicking to complete the picking operation. The renderer attached to the specified view might need to reprocess the model data, so you should always call Q3View_StartPicking and Q3View_EndPicking in a picking loop.

SPECIAL CONSIDERATIONS


You should not call Q3View_StartPicking while picking is already occurring.

DESCRIPTION
SPECIAL CONSIDERATIONS

3D Graphics Programming with QuickDraw 3D - 17 OCT 1995

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