Re: Problem with NSText:setString
"Diez B. Roggisch" <[email protected]>
| Newsgroups | gmane.comp.python.pyobjc.devel |
|---|---|
| Message-ID | <[email protected]> |
On Jun 13, 2011, at 2:07 PM, Daniel Luis dos Santos wrote: > Hello, > > I have a GUI application built with interface builder. One of the windows has a NSTextView in it. I connected it to an object also referenced in the interface builder file. > The goal is to write to the NSTextView from a background trhead that does some task. I launch the thread with a call to > > NSThread.alloc().initWithTarget_selector_object_() > > The behaviour I am getting is erratic. Most times it blocks on the call to the NSTextView's setString_() method and the application hangs. If I run the code on the main thread it runs fine. > > How do I do this from a background thread ? The idea is to keep the application responsive. > GUI and multi-theading = bad idea. The main or GUI-thread is very sensitive about state being changed from other threads while it does it's works. So usually there are ways to remedy this by special events that get pushed into the GUI-threads event-queue, or similar means. The documentation relevant for this should be http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Multithreading/RunLoopManagement/RunLoopManagement.html#//apple_ref/doc/uid/10000057i-CH16-SW44 That should get you started. Diez ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev _______________________________________________ Pyobjc-dev mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/pyobjc-dev