How can I set my window title in Cocoa?

Question

Created Sep ’24

Replies 2

Boosts 0

Participants 2

I have a simple cocoa project, it has the default files like AppDelegate.m, AppDelegate.h , ViewController.h and ViewController.m what I want is to set the Window title to the dimension of the current window and update it as the user resizes it.

My Storyboard has an Application Scene, a Window Controller Scene and a test Scene which contains my view:

how do I go about this? should my ViewController or AppController implement NSWindowDelegate ?

Answered by Engineer in 804011022

Hello @aynas, if you'd like to change the default window title, you click the upper-right corner button on Xcode's main window to expand the Inspectors view. After selecting the window, you can use the Title text box to provide a new default name:

Screenshot 2024-09-17 at 1.19.11 PM.png

There are different ways to change the title of the window programmatically. One straightforward option is to access the window property from your view controller's view and change the title:

- (void)viewDidAppear {
    [super viewDidAppear];
    self.view.window.title = @"My title";
}

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Answer 1

Engineer OP

Apple

Sep ’24

Recommended

Hello @aynas, if you'd like to change the default window title, you click the upper-right corner button on Xcode's main window to expand the Inspectors view. After selecting the window, you can use the Title text box to provide a new default name:

Screenshot 2024-09-17 at 1.19.11 PM.png

There are different ways to change the title of the window programmatically. One straightforward option is to access the window property from your view controller's view and change the title:

- (void)viewDidAppear {
    [super viewDidAppear];
    self.view.window.title = @"My title";
}

1

Answer 2

aynas OP

Sep ’24

Hey, thanks for the response!

But what if I wanted to change the title as the user resizes the window? In that case viewDidAppear won't cut it.

Also I did try to implement the NSWindowDelegate in the ViewController:

@interface ViewController : NSViewController<NSWindowDelegate>

but the windowDidResize never gets called, what gives?

Edit

Ok turns out I managed to do it.

I just had to set the delegate in the viewDidAppear method:

- (void)viewDidAppear 
{
	[super viewDidAppear];
	//self.view.window.title = @"My title";

	self.view.window.delegate = self;
}

0