3 replies to this topic

[hetra]

Hi,

I was wondering (as I usually do about these things) what commands open files, web resources etc. in C++. For example anyone familiar with MS-DOS (rare) knows that

start [URL="http://www.codecall.net/"]www.codecall.net[/URL]

opens the web resource www.codecall.net .

Also,

start codecall.txt

opens the file codecall.txt. So what command in C++ does this?

[lintwurm]

Depending on your OS...

But as far as I can remember you can import the stdlib.h to do these kinds of things...
then just use system("whatever you want to happen for example start codecall.txt");

That should work if you are running windows... (which I am guessing you are?)

[Sysop_fb]

You can open a file as a stream.

ofstream outfile ("myfile.txt");
outfile << "You're a lame file" << endl;
outfile.close();

ofstream - C++ Reference

[dargueta]

Quote

system("whatever you want to happen for example start codecall.txt");

Really bad habit to get into. If you have to use a system() call you're doing something wrong. There's huge overhead, and it's really vulnerable to screwing up. Plus you have little to no control over the command once you've called it. Plus it's not portable, so it won't work on anything but Windows. And even then, it's not guaranteed. Not all versions of DOS support the same things.