Relationship between "open" parameters and argv

I'm coming from the Linux world, where the command-line arguments passed to a program show up in main()'s argv parameter.
I ported my app to OS X. It has a GUI, so I built it as a .app using CMake's MACOSX_BUNDLE option.
The actual executable program is burried: "foo.app/Contents/MacOS/foo". When I execute that directly, everything works as expected. If I call my program with arguments "A B C", I get argv[1] = "A", etc.
But launching a program buried deep in a ".app" directory tree made me think I was fighting the intended way of doing things. So I've tried calling my program with the "open" command from the command line. I.e., "open -a foo A B C". But when I do this, argv[1] doesn't contain "A". It contains a string starting with "-psn_".
So here's my question: If I need to launch a program with a GUI, and that program is supposed to take arguments on its command line, what's the most Apple-blessed way to launch it?

conveycj wrote:
So here's my question: If I need to launch a program with a GUI, and that program is supposed to take arguments on its command line, what's the most Apple-blessed way to launch it?
Change your program. GUI programs don't take command line arguments. GUI applications get their input via the user or via Apple Events.
When a GUI program is launched, its command line looks like "/path/to/myapp.app/Contents/MacOS/myapp -psn XXXX". You can't alter that and shouldn't try. However, you can look at those command line arguments and, if you see "-psn XXXX", assume you are running under a GUI. If you don't see "-psn XXXX", then your application was launched from the command line and you can process your arguments in the traditional fashion.

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>
'2. Now, pull the 'Store' column from relational DB onto the Gen5, Location column from Essbase. This action now creates, two logical sources for your 'Store' column.'
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>
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endloop.
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I hope this will help you.
Message was edited by: Deepak333 k
Message was edited by: Deepak333 k

Relationship between "open" parameters and argv

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