how to get the return value of main [Archive]

SunCore

September 17th, 2005, 05:41 PM

hi,

I have a program that i wrote, and compiled.
and i need to get the return value of it's main function, using other program, that i'm gon'a write later.

i use windows xp sp2.

is it possible?

thanks in advance.

Siddhartha

September 17th, 2005, 05:59 PM

I have a program that i wrote, and compiled.
and i need to get the return value of it's main function, using other program, that i'm gon'a write later.

i use windows xp sp2.

is it possible? Yes, you would use Win API GetExitCodeProcess (http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/getexitcodeprocess.asp).

To see how to invoke a process programmatically, read -

FAQ: How can I start a process? (http://www.codeguru.com/forum/showthread.php?t=302501)
FAQ: How can I wait till a process ends? (http://www.codeguru.com/forum/showthread.php?t=312451)
You would use the Process Handle returned by the creation API in a call to GetExitCodeProcess to get the return value (after waiting for the process to end).