busey@milton.u.washington.edu (Thomas Busey) (05/07/91)
I'm sure that this question has been asked before, but how do I get the slot number for the Main screen (i.e. the one with the menu bar in it). Thanks for responding. Tom Busey busey@milton.u.washington.edu University of Washington {^^^ A stone's throw away from Nintendo and Microsoft- probably a good reason to throw stones!}
russotto@eng.umd.edu (Matthew T. Russotto) (05/08/91)
In article <1991May7.145602.21514@milton.u.washington.edu> busey@milton.u.washington.edu (Thomas Busey) writes: >I'm sure that this question has been asked before, but how do I get >the slot number for the Main screen (i.e. the one with the menu >bar in it). Thanks for responding. foo() { GDHandle gd; int mainslot gd = GetMainDevice(); mainslot = (*GetADCtlEntry((*gd)->gdRefNum))->dCtlSlot } AuxDCEHandle GetADCtlEntry(refnum) unsigned long refnum; { return *(*((AuxDCEHandle **)0x11c) + (refnum ^ 0xFFFFFFFF)); } -- Matthew T. Russotto russotto@eng.umd.edu russotto@wam.umd.edu .sig under construction, like the rest of this campus.
davet@cmi.com (David Temkin) (05/08/91)
References:<1991May7.145602.21514@milton.u.washington.edu> <1991May7.202841.23551@eng.umd.edu> In article <1991May7.202841.23551@eng.umd.edu> russotto@eng.umd.edu (Matthew T. Russotto) writes: > In article <1991May7.145602.21514@milton.u.washington.edu> busey@milton.u.washington.edu (Thomas Busey) writes: > >I'm sure that this question has been asked before, but how do I get > >the slot number for the Main screen (i.e. the one with the menu > >bar in it). Thanks for responding. > > foo() > { > GDHandle gd; > int mainslot > > gd = GetMainDevice(); > mainslot = (*GetADCtlEntry((*gd)->gdRefNum))->dCtlSlot > } etc, etc. Alternately, you can call GetMainDevice() and then get the base address of the pixmap -- either through the PixMap record directly, or, if 32-bit QuickDraw is installed, through GetPixBaseAddr(). The base address is of the form FsXXXXXX (hex), and the second hex digit (s) is the slot number. (This is documented in Designing Cards & Drivers). David Temkin Center for Machine Intelligence, EDS Corp. davet@cmi.com