cruff@ncar.ucar.edu (Craig Ruff) (09/05/88)
I think I have found a bug in SysBeep. Setup:
Mac+
System 4.2
Volume = 0 (off)
After a call to SysBeep, thePort->txFont field is set back to 0!
The following code illustrates this:
EraseRect(&thePort->portRect);
MoveTo(30, 40);
TextFont(4);
TextSize(9);
DrawText("Before", 0, 6);
SysBeep(3);
MoveTo(30, 60);
DrawText("After", 0, 5);
The "Before" string is drawn in Monaco font. The "After" string is drawn
in System font (Chicago). Tracking down the bug with a debugger,
thePort->txFont is changed sometime during the trap to SysBeep.
Note that this bug does not occur if the volume > 0;
--
Craig Ruff NCAR INTERNET: cruff@ncar.UCAR.EDU
(303) 497-1211 P.O. Box 3000 CSNET: cruff@ncar.CSNET
Boulder, CO 80307 UUCP: cruff@ncar.UUCP
--
Craig Ruff NCAR INTERNET: cruff@ncar.UCAR.EDU
(303) 497-1211 P.O. Box 3000 CSNET: cruff@ncar.CSNET
Boulder, CO 80307 UUCP: cruff@ncar.UUCPlippin@jell-o.berkeley.edu (The Apathist) (09/05/88)
Recently cruff@ncar.UCAR.EDU (Craig Ruff) wrote: >I think I have found a bug in SysBeep. Setup: > > Mac+ > System 4.2 > Volume = 0 (off) > >After a call to SysBeep, thePort->txFont field is set back to 0! Is thePort the window manager port? SysBeep with the volume set to zero should call FlashMenuBar, which could change the font of the window manager port, as is its priviledge. You're the one who shouldn't be mucking about in that port. --Tom Lippincott ..ucbvax!math!lippin "Foo, you are nothing but a charlatan!" --Adventure
cruff@ncar.ucar.edu (Craig Ruff) (09/05/88)
In article <13898@agate.BERKELEY.EDU> lippin@math.berkeley.edu writes: >Recently cruff@ncar.UCAR.EDU (Craig Ruff) wrote: >>I think I have found a bug in SysBeep. Setup: > >Is thePort the window manager port? Thanks for the info. I hadn't thought about which port was being used. The software that is mucking with the window manager's port is the Aztec C console driver, which doesn't get a new window before doing so. I can fix it so it does something reasonable now. -- Craig Ruff NCAR INTERNET: cruff@ncar.UCAR.EDU (303) 497-1211 P.O. Box 3000 CSNET: cruff@ncar.CSNET Boulder, CO 80307 UUCP: cruff@ncar.UUCP