3 #include <exec/types.h>
4 #include <intuition/intuition.h>
5 #include <graphics/gfxmacros.h>
8 extern struct Screen *SurfScrn;
9 extern struct Window *SurfWin;
10 extern struct Window *CntrlWin;
11 extern struct Window *GadWin;
12 extern long BackColor;
14 * bit masks for waiting for signals
16 extern short CntrlSigBit, SurfSigBit, GadSigBit;
17 extern long SignalMask;
19 extern struct RastPort *rp;
20 extern struct ViewPort *vp;