Source position: intuition.pas line 4004
function ShadeRectOld(
Rp: PRastPort;
MinX: LongInt;
MinY: LongInt;
MaxX: LongInt;
MaxY: LongInt;
ShadeLevel: LongWord;
BackType: LongWord;
State: LongWord;
Dri: PDrawInfo
):LongWord;