DataBrowserHitTestProcPtr

DataBrowserHitTestProcPtr
Header:	ControlDefinitions.h		Carbon status:	Under Evaluation

typedef Boolean(* DataBrowserHitTestProcPtr) (
    ControlRef browser, 
    DataBrowserItemID itemID, 
    DataBrowserPropertyID property, 
    const Rect *theRect, 
    const Rect *mouseRect
);

You would declare your function like this if you were to name it MyDataBrowserHitTestCallback:

Boolean MyDataBrowserHitTestCallback (
    ControlRef browser, 
    DataBrowserItemID itemID, 
    DataBrowserPropertyID property, 
    const Rect *theRect, 
    const Rect *mouseRect
);