objective c - Launching App using 'launchedTaskWithLaunchPath' Cocoa/objecive-c API -

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i need launch 'textmate' app, , used following code. 

[nstask launchedtaskwithlaunchpath:@"/applications/textmate.app" arguments:[nsarray arraywithobjects:@"hello.txt", nil]];

but, got following error return.

*** nstask: task create path '/applications/textmate.app' failed: 22, "invalid argument".  terminating temporary process.
  • what's wrong code? tried run "textmate hello.txt".

added

i make run follows.

[nstask launchedtaskwithlaunchpath:@"/applications/textmate.app/contents/macos/textmate"     arguments:[nsarray arraywithobjects:@"hello.txt", nil]];

and asked another question see how many other ways available.

in case, invalid parameter application's name.

if check documentation nstask you'll see method you're using wrapper low-level exec() system call. means need provide name of actual executable or binary file able create process. in case, you're giving directory (use terminal confirm app bundles in /applications directories). that's why barfs.

you inside textmate's bundle directory find actual executable (should somewhere in /applications/textmate.app/contents/macos). modify code call actual executable.

however, seem correct, cocoa-ish way using nsworkspace, might openfile:withapplication: method, seems need, , in case specify application bundle directory parameter, way doing it.

official documentation here.

by way, can't take credit it; see this stackoverflow answer learn more topic.


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