How do I call the file when I call the executable?

Question

I am programming in visual c/c++, using C not c++, and I have written a program that calls a file I input into it. When I run the program I have it asking what file I want to input but I would like to change this so I tell it that file when I call the program from the command prompt.

Ex. C:\Documents and Settings\user>program.exe file

if someone could help me out with that it would be very appreciated.

Answer 1

All you need to do is change
int main() {...
to
int main(int argc, char *argv[]) {...
This gives you an array of all the command line arguments.

Answer 2

#include

int main(int argc, char *argv[])
{
}

The char* argv[] is your command Line argument, use it to read the file name and then pass that to your program