Process.Start problem

Jan Dreka

Hi. I'm making small application what will do c++ programs compiling easier. I have this code:
System.Diagnostics.Process.Start("C:\\Alps\\compiler\\H-i586-cygwin32\\bin\\g++.exe", "-c Main.cpp -o main.o ");
This code should start
g++.exe
with arguments
-c Main.cpp -o main.o
for compiling main cpp file to o file. Can you see any error in my code? Why it does not works? When I will click to button what contains this code, nothing happens. Main.cpp file is there and g++.exe too. Path is good.

6 Replies

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Sam Hobbs15y ago
It might be working and you are just assuming it does not. I am not sure, but the command prompt window might be opening and closing so fast that you don't see it. Are you sure you know what directory the output would go to? Did you look there? Try looking at the time that the output file was modified, or just delete it ("main.o") and try your program.

Or a better diagnostic tool would be to redirect the standard output; look at the articles in this web site for articles about that. It will require a bit of work, but it is nearly certainly something you will want to do anyway. It is fundamental to the type of thing you are doing.
Vulpes15y ago
See if you have better luck when attempting to run it under a command prompt session.

This thread (http://stackoverflow.com/questions/6999201/how-to-use-more-dos-commands-in-c) may help in that regard.
Jan Dreka15y ago
In current.
Vulpes15y ago
Where is the Main.cpp file stored?

If it's not in the current directory, you'll need to specify the full path.
Jan Dreka15y ago
still does not works.
Vulpes15y ago
As the argument contain spaces, I'd try putting the whole lot in quotes:

System.Diagnostics.Process.Start("C:\\Alps\\compiler\\H-i586-cygwin32\\bin\\g++.exe", "\"-c Main.cpp -o main.o\"");