MinGW installation directory

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Hi,

I want to use MinGW in my programming language. I only can run the binaries in C# if I specify the full path, even if I set it in the PATH environment variable. I'm using System.Diagnostics.Process class. Is there any way to know where MinGW is installed or how can I run it without specifying its path?

Posted 29-May-11 9:55am

Dávid Kocsis

Updated 29-May-11 18:44pm

v2

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-05-29T11:05:00

Solution 1

I don't think the modification of path environment variable is not working.

Would you try it again, more thoroughly. There is one delicate moment some miss. You're running some Shell application like Explorer or CMD.EXE and start other application as a child process. If you updated your path environment variable in between, your parent process remains not notified about the change. You need to re-start it for your modification to be taken into account.

Careful: I don't mean your application using MinGW, I mean some parent process (Shell or console) you use to start your application. Restart it.
Please check it up.

[EDIT]
To run a console application from you code, use System.Diagnostic.Process.Start, redirect standard input, output and error streams. See for more information: Custom Command Line program (Form)[^], ask a follow-up question if you face a problem.

—SA

Posted 29-May-11 11:05am

Sergey Alexandrovich Kryukov

Updated 30-May-11 7:42am

v3

Comments

Monjurul Habib 29-May-11 18:34pm

nice explanation ,my 5.

Sergey Alexandrovich Kryukov 29-May-11 18:36pm

Thank you, Monjurul. Hope it helps OP.
--SA

Dávid Kocsis 30-May-11 0:47am

It works correctly from console, but I want to run it with my application.

Sergey Alexandrovich Kryukov 30-May-11 13:43pm

So, what's the problem? Please see updated solution. See MSDN code sample on redirected stream.
--SA

Dávid Kocsis 30-May-11 14:48pm

I have solved the problem. Anyway thanks for helping. I had to set UseShellExecute to false otherwise the output will be in a new console window and when the program execution ends it will disappear, so I wont see the results. But its only finds the file in the PATH directories if UseShellExecute is true. So I find the file using Environment.GetEnvironmentVariable("PATH") method and simply specify the full path.

Sergey Alexandrovich Kryukov 30-May-11 15:48pm

Incorrect (calculating full path). If it's in path, you never need a full path. Worse, this variables contain several path name, delimited. You need to split it, but which one to use? By hard-coded sub-string you expect to find? Not reliable. Not good if you deploy the program anywhere.
--SA

Dávid Kocsis 30-May-11 16:52pm

You're right. I could do it without full path. Thanks.

Sergey Alexandrovich Kryukov 30-May-11 17:25pm

Great, thanks for the note.
Thanks for accepting this answer.
Good luck, call again.
--SA