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From: | arcadepreserv AT hotmail DOT com |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: How Do I start another DOS program from DJGPP ? |
Date: | Thu, 10 Feb 2000 13:02:02 GMT |
Organization: | Deja.com - Before you buy. |
Lines: | 55 |
Message-ID: | <87ucs9$7at$1@nnrp1.deja.com> |
References: | <Pine DOT SUN DOT 3 DOT 91 DOT 1000208094014 DOT 28790K AT is> <87p46p$e4u$1 AT nnrp1 DOT deja DOT com> <38A183C7 DOT AC3F0097 AT americasm01 DOT nt DOT com> |
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To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
How about this approach then ? frontend.c main{ ... setup_timer_interrupt_to_call_int_handler_often_enough; exec_dos_program("backend.exe>tempfile.dat"); ... } int_handler { read_last_string_from_file("tempfile.txt"); process_that_string_quickly_since_we_are_in_an_interrupt; } In article <38A183C7 DOT AC3F0097 AT americasm01 DOT nt DOT com>, "Campbell, Rolf [SKY:1U32:EXCH]" <moscoop AT americasm01 DOT nt DOT com> wrote: > arcadepreserv AT hotmail DOT com wrote: > > > Thanks for your answers. On the not possible in DOS though, > > it would be possible to have a starter program that runs a > > > > popen(gets.exe|backend.exe) > > > > where gets.c is something like > > > > char *s; > > while (1) > > gets(s); > > > > I have tested this and indeed s always contains the latest output > > string that backend.exe has output on screen. gets can of course have a > > bigger loop and thus process the s string in any matter while the > > backend.exe runs and prints it out. > > But, 'backend.exe' does not run until 'gets.exe' has finished running, > which is not what you wanted. > > -- > (\/) Rolf Campbell (\/) > > Sent via Deja.com http://www.deja.com/ Before you buy.
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