Running Program

[D Technodude]

I was wondering how to make a program open another program.

[kbw]

exec() or CreateProcess() on Windows.

[D Technodude]

It didnt Work.

[kbw]

What didn't work?

[D Technodude]

exec() or CreateProcess() on Windows.

Didn't work.

[Zhuge]

How did it not work?

[firedraco]

Didn't work.

Better try something else then.

[bluecoder]

can you provide with what code you have written ?

[D Technodude]

In reply to Zhuge:
It wouldn't open a program.

In reply to firedraco:
I don't know what to try.

In reply to bluecoder:
No because I don't have any programming yet that control the opening of programs and because the code I do have has nothing to do with opening programs.

[filipe]

How do you know it didn't work if you didn't write any code?

[rahulroot]

well, do the fork and exec the another program in newly created process.

sample code.

int pid = fork()
if(pid==0)
{
exec("your program");
}

execv will overwrite the memory space of newly created process with your program.

Regards.

[D Technodude]

Is there an #include i'm forgeting cause the compiler says it dosent know what exec does.

[Reynold]

You must include the process.h header for the exec functions (execl, execv etc). There is documentation for them here (you probably want to look at _execl)
http://msdn.microsoft.com/en-us/library/431x4c1w%28VS.80%29.aspx

Also in process.h are the spawn methods, which can also launch processes (probably want to look at _spawnl)
http://msdn.microsoft.com/en-us/library/20y988d2%28VS.80%29.aspx

Lastly there is the CreateProcess method in the Windows.h header
http://msdn.microsoft.com/en-us/library/ms682425%28VS.85%29.aspx

Give one or a couple of these a try, and if you are having difficulties, post your code and your problem for additional help.

[kbw]

If you post the code you have and post what platform you want to run it on, you may make speedier progress.

How To: Ask Questions The Smart Way
http://www.cplusplus.com/forum/articles/1295/