Opening file to automatically open and run program with input file

[ngay528]

My program has the ability to save and open a text file with a custom extension.  How do I make the system in which the program is being installed to recognize this file to open the program, AND how to I gather the input file in my program and load it.

Thanks

[ngay528]

Ok I have found on a different thread how to setup/register the file path association in the classes root.  What I don't understand is how my program will know what the input file is.  For example, the reg setting is C:/.../MyProgram.exe %1

When my program loads, is the %1 in the argc/argv part of the main thread? And if so, how do I debug/test this?

Thanks

[ngay528 · Accepted solution]

And now I figured out how to debug by going to Run and changing the 'Command Line' arguments there.

So solved.