Running and EXE file and storing the return data

[TheSpecialist]

I have an exe file that converts a MAC address to a key when run through the cmd prompt.

example :  If I type mac2key.exe 00:13:0a:00:01:05  in the cmd prompt 00:13:0a:00:01:05, "715a02" is returned

C:\>mac2key.exe 00:13:0a:00:01:05

00:13:0a:00:01:05, "715a02"

I would like to launch the exe with a MAC address attached and be able to capture the return string.  How can I perform this task in CVI?

[Al_S]

if mac2key is an executable that you just want to run and not modify, you can do the following:

system("mac2key.exe 00:13:0a:00:01:05 > output.txt");

The > sign rediects the programs output to a file.  You specify the filename (example output.txt) and path to be whatever you want. You can then read that file (fopen(), fscanf(), etc.) to get the key in your CVI program.

[jr_2005]

Typing too slow again - Al beat me to it

Message Edited by jr_2005 on 05-09-2007 02:02 PM

[TheSpecialist]

I ran the code and it creates a blank text file.  Help!!!

[TheSpecialist]

I also pasted the code in the command line and it works fine but it does not work when I run it from CVI.  The mac2key.exe file and the txt file are in the C: directory.

 system("C:\\mac2key.exe 00:13:0a:00:01:05 > c:\\output.txt");

[jr_2005]

Try this:

    system("cmd /c C:\\mac2key.exe 00:13:0a:00:01:05 > c:\\output.txt");

JR

[TheSpecialist]

That did the Trick!

Thank You!

Jon K.