[Qt-interest] Qt app launched from CLI or GUI? Can I know in code?

[Kishore Jonnalagadda]

On Tuesday 26 Jul 2011 11:02:32 PM you wrote:
> Basically, in my application, I would like to install a message handler for
> debug messages so that they are logged to a file. However, I would like to
> do so only if the app were launched from the GUI. So in case the app was
> launched from the CLI, it should output to the terminal as usual.
> 
> Is this possible? Particularly on a linux machine

To answer my own question, i now use isatty() to check this.

/****/
if(!isatty(fileno(stderr)))
	qInstallMsgHandler(myMessageOutput);
/****/

The above code installs a custom message handler if stderr is not a terminal.
-- 
Cheers!
Kishore