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July 28th, 2004, 09:19 AM
#1
How to launch DOS program?
Hello all, I would like to know if and how it is possible to launch a DOS program from my SDI program running in Windows 2000. The program is called allowio.exe and in DOS prompt the command to run it properly is:
allowio test.bat /a
Any thoughts on what command to use and how to include the parameters ("test.bat /a")?
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July 28th, 2004, 09:28 AM
#2
There are a variety of methods available.
You could simply make a system call:
system("allowio test.bat /a");
...although this method is probably not PC these days.
There's the spawn functions, with a likely candidate for your needs being:
_spawnlp( _P_WAIT, "allowio", "allowio", "test.bat", "/a", NULL );
There are others too, _exec, ShellExecute. I'm sure there are more...
Hope this helps,
- Nigel
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July 28th, 2004, 10:41 AM
#3
What if you have a dos program and you want to launch a Windows program.
Is there a switch the you can set on the compiler to lauch the program from command.com????
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July 28th, 2004, 12:12 PM
#4
Originally Posted by Simon666
Hello all, I would like to know if and how it is possible to launch a DOS program from my SDI program running in Windows 2000. The program is called allowio.exe and in DOS prompt the command to run it properly is:
allowio test.bat /a
Any thoughts on what command to use and how to include the parameters ("test.bat /a")?
Take a look at the following FAQ...
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July 28th, 2004, 12:14 PM
#5
Originally Posted by ADSOFT
What if you have a dos program and you want to launch a Windows program.
Well...what operating system? If it is 16-bit, I would go with 'WinExec()'...otherwise use one of the methods described in the FAQ I posted in my previous reply...
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July 28th, 2004, 12:22 PM
#6
The operationg system is dos, we are basically running it under 95/98/XP out of a dos box right now.
We want to shell out to some window app though.
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August 9th, 2004, 04:31 AM
#7
Okay, it works with:
_spawnlp( _P_WAIT, "allowio", "allowio", "test.bat", "/a", NULL );
but I have the problem it blocks my application till I close the launched DOS application down, while both are supposed to run simultaneously. Anyone knows how to launch a DOS program as a seperate thread?
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August 9th, 2004, 04:36 AM
#8
How about calling it asynchronously!! Pass the first parameter as _P_NOWAIT or _P_NOWAITO, and check MSDN for description!!
Say no to supplying ready made code for homework/work assignments!!
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August 9th, 2004, 04:39 AM
#9
Nevermind my stupidity, I found it out already. _P_NOWAIT indeed. MSDN doesn't really describe _P_NOWAIT with _spawnlp by the way.
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August 9th, 2004, 04:45 AM
#10
yeah, sorry about that. The MSDN indeed is missing the descriptions.
Say no to supplying ready made code for homework/work assignments!!
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