Program - How to get the data path
Hey everyone.
I got a little question about getting the data path of my c program. I heard something like it's already given in the "int main(int argc, char **argv)". But with witch function can I get it?
Do you have any suggestions?
For example: The program is called Pathfinder and the path is 'D:\Path1\Path2\Pathfinder.exe'.
I have no idea how to start so I'm very happy about any help.
Thanks in advance.
Which witch?
Assuming you have specified main() in the form "int main(int argc, char **argv)" form, look at argv[0] first. While it is not guaranteed to contain the complete path of your program, with a fair few implementations it does.
Second choice is to look at the getenv() function. getenv("PATH") will usually return the contents of the PATH environment variable. Since the contents of that environment variable may contain multiple directories (separated by semi-colons) it will be necessary to extract individual directories (and check if your executable is in each one).
Given the way you have represented you path example, I assume you are working under windows. In that case, you can use WIN API functions like GetModuleFileName() (to get the name of the executable) or GetEnvironmentVariable() (to expand an environment variable). Obviously, these options are windows specific.
My avatar, maybe? She specialises in C++, not C, though.Originally Posted by grumpy
Look up a C++ Reference and learn How To Ask Questions The Smart Way
Use GetModuleFileName(), it gives you path to a program.
