Path: utzoo!mnetor!uunet!portal!cup.portal.com!Steve_A_Hales
From: Steve_A_Hales@cup.portal.com
Newsgroups: comp.sys.amiga
Subject: Fonts!
Message-ID: <2041@cup.portal.com>
Date: 17 Dec 87 23:40:08 GMT
Organization: The Portal System (TM)
Lines: 66
XPortal-User-Id: 1.1001.1895




   Augh!!!!

   Ok, like, don't laugh! Ok, Ok....  Whad' I say.... Whad' I say...

   Aloha!

   I have this real strange font related problem (no, not again).
   I've opened a font with OpenDiskFont.  It returns a pointer to
   the TextFont structure.  Well, I need to obtain the name of the
   font from the TextFont structure, and guess what, it changes!

       The following dump is of the TextFont structure.  Note that
       the ln_Name pointer is valid and is pointing to the correct
       name.
   ...
OpenFont 0 .. Failed
OpenDiskFont			   (  ->ln_Name )
21988a: 00 20 06 36 00 20 06 f8 0c 00 00 21 98 6a 00 00 . .6. .x...!.j..
21989a: 00 00 2c 9c 00 26 40 62 00 1c 00 18 00 01 00 01 ..,..&@b........
2198aa: 20 7f 00 21 98 fa 00 c4 00 21 d3 2a 00 21 d4 ae  .!.z.D.!S*.!T.
2198ba: 00 21 d5 70 00 01 02 01 00 03 ff 00 00 21 98 ea .!Up........!.j
Sizes 38 38
21986a: 42 61 6c 6c 6f 6f 6e 2e 66 6f 6e 74 00 20 20 20 Balloon.font.
21987a: 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20

...
       The following dump is from the same program while still running,
       and the font from above is still in memory, but this time, I'm
       accessing a different font and the ln_Name pointer points to
       some random memory block.
...
OpenFont 0 .. Failed
OpenDiskFont			   (  ->ln_Name )
21dc5a: 00 20 06 36 00 21 98 8a 0c 00 00 45 27 1e 00 00 . .6.!.....E'...
21dc6a: 00 00 00 00 00 32 00 62 00 3d 00 21 00 01 00 01 .....2.b.=.!....
21dc7a: 20 7a 00 21 dc 8e 01 20 00 22 14 ce 00 22 16 3e  z.!\.. .".N.".>
21dc8a: 00 22 16 f6 00 00 00 61 80 00 f1 e0 00 00 00 00 .".v...a..q`....
Sizes 50 50
45271e: 3f 00 3f 00 3f 00 3f 00 3f 00 3f 00 3f 00 3f 00 ????????
45272e: 3f 00 3f 00 3f 00 3f 00 3f 00 3f 00 3f 00 3f 00 ????????


   I have also disovered that when you attempt to close this font, it
   will close, but when you then make a call to AvailFonts, the system
   will thrash it self around, and return with random results.

   My question is clear -- WHAT'S GOING ON!!?!?

   Does anyone have any clue what so ever?  This is very repeatable, using
   specific fonts.  However I am using the ColorFont structure from
   Inter/Active, but that really should make no difference.

   What I think is happening is when AmigaDOS loads the font into memory,
   it is not loading the tf_Message.mn_Node.ln_Name pointer from the
   TextFont structure correctly.


   Well, thanks in advance.  I really don't know if anyone can help, but
   if you have any new angles, please drop me a clue.

       - Steve Hales


UUCP: Steve_A_Hales@cup.portal.com