Re: PM Programming: Only from 1 thread?

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2 total messages Started by Timur Tabi Fri, 15 Dec 1995 00:00

#174

Author: Timur Tabi
Date: Fri, 15 Dec 1995 00:00

20 lines
1395 bytes

In message <4aq7gn$bvk@cpcug.org> - kbennett@cpcug.org (Keith Bennett) writes:

>I once heard a long time ago that there was an issue about only making PM
>graphics calls from one thread in a program.  I don't remember the
>details, but there was some problem with making PM calls from more than 1
>thread.

Yeah, it's complicated.  And there's something about how some calls need
to be made from a thread that has a PM message queue, because the call itself
can generate PM messages.

Multithreaded PM programming is not trivial.  Fortunately, there is an
excellent book out called, "The Art of OS/2 Warp Programming," by Panov,
Salomon, and Panov.  I strongly recommend you get it.

--
Timur "too sexy for my code" Tabi, timur@vnet.ibm.com
Architect, OS/2 Warp realtime MIDI subsystem
http://timur.bocaraton.ibm.com (internal IBM only)
http://www.shirenet.com/~crusader/Timur (external)

Re: PM Programming: Only from 1 thread?

#172

Author: Q
Date: Fri, 15 Dec 1995 00:00

31 lines
1833 bytes

In <4aqt05$eh2@bocanews.bocaraton.ibm.com> timur@vnet.ibm.com (Timur Tabi) writes:

>In message <4aq7gn$bvk@cpcug.org> - kbennett@cpcug.org (Keith Bennett) writes:

>>I once heard a long time ago that there was an issue about only making PM
>>graphics calls from one thread in a program.  I don't remember the
>>details, but there was some problem with making PM calls from more than 1
>>thread.

>Yeah, it's complicated.  And there's something about how some calls need
>to be made from a thread that has a PM message queue, because the call itself
>can generate PM messages.

>Multithreaded PM programming is not trivial.  Fortunately, there is an
>excellent book out called, "The Art of OS/2 Warp Programming," by Panov,
>Salomon, and Panov.  I strongly recommend you get it.

There are other good books out there too.

_Programming the OS/2 Presentation Manager, 2nd edition_, Charles Petzold.
   Ziff Davis Press.

Also, check out EDM/2 the (free) magazine for OS/2 developers.  The URL
is http://venus.ee.ndsu.nodak.edu/edm2

Cheers,
Q
-- 
ftp://hobbes.nmsu.edu/os2/newsltr/edm*  |  Get the latest EDM/2!  _The_
http://venus.ee.ndsu.nodak.edu/edm2     |  magazine for OS/2 developers.
email to edm2-info@knex.mind.org        |  At fine Web sites near you.  :)

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