Question

I am making an app for OS X using Cocoa for the graphical interface. But my main algorithm was made in C++. The interface just shows some values of the algorithm in NSTextFields and NSLevelIndicator.

The screen needs to be refresh with the data from the algorithm in real time.

What i did is a NSThread that reads the data from the algorithm and put on screen. But I don’t think that it’s the proper way.

What are your suggestions?

Answer 1

Generally, you should only update the GUI from the main thread. You can submit some work to the main thread with code like this:

dispatch_async(dispatch_get_main_queue(), ^{
    [myTextField setStringValue:@"a new string"];
});