[hadocon]

Hey, y'all

I have an x-code GUI project that reads telemetry from a bluetooth device. I want to be able to write this to stdout (terminal).

There's gotta be a very simple way to do this I am guessing. I'm a complete OBJ-C newb, so... well... I'm learning from this post, no?

Anyone want to learn me?

[black bear theory]

i think your requirements for your program are a little skewed. you want a GUI app that displays output to a terminal? that kind of defeats the purpose of having a GUI, don't you think?

a NSLog() call containing the information you want would write the info to the system log which you could then read in Console.app. or, more likely what you want, you could just append/overwrite new output into a NSTextView that you place in your GUI, so the output can be seen/updated when you interact with the other controls you have for your app.

hope that helps some.

[Chuckit]

You can write to stdout with printf(), just like in C. But like Black Bear Theory said, this seems kind of odd. GUI apps don't normally have a controlling terminal (hence them being GUI apps), so I don't think stdout goes anywhere.

[techtrucker]

Maybe just use a multi line text field?

[hadocon]

I'm hacking existing software... It's a gui app that renders graphs of remote telemetry. I have the source code from another person. I want to be able to use the telemetry from this application in another application. If I can write the stream to stdout then I can pipe it into other shell apps, or shunt it across a network.

I know, this is an unorthodox request... just bear with me. I know that this is the functionality I need.

Looks like I will just use printf()...

Thanx for the help.

[arcticmac]

yeah... just use printf and then run the app from a shell instead of by double clicking in the finder.
FWIW, NSLog() basically takes an NSString instead of a standard c string, and prepends certain info like the program name, pid, and date, and appends a \n before writing it to std out.

[Chuckit]

NSLog writes to stderr, actually, not stdout.

[arcticmac]

ah... my bad