Os x menu bar clock not updating

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For example: if the user selects a text field, items on the Edit menu will be come enabled such as Copy and Cut.

According to Apple and by default, all mac OS application's have a standard set of Menus and Menu Items that appear in the Application's Menu Bar: For more information about the Application Menu Bar and standard Menus and Menu Items, please see Apple's Menu Bar Menus section of the OS X Human Interface Guidelines. Mac project, you automatically get a standard, default Application Menu Bar that has the typical items that a mac OS application would normally have (as discussed in the section above).

Because the filename and path returned from the Open Recent menu, might include a space, we need to properly escape this character before creating a using App Kit; using Foundation; using System. First, define a custom Action on one of your App's Windows Controllers.

IO; using System; namespace Mac Hyperlink { [Register ("App Delegate")] public class App Delegate : NSApplication Delegate { #region Computed Properties public int New Window Number = -1; #endregion #region Constructors public App Delegate () #endregion #region Override Methods public override void Did Finish Launching (NSNotification notification) public override void Will Terminate (NSNotification notification) public override bool Open File (NSApplication sender, string filename) #endregion #region Private Methods private bool Open File(NSUrl url) { var good = false; // Trap all errors try { var path = url. for(int n=0; n Based on the requirements of your app, you might not want the user to open the same file in more than one window at the same time. For example: Next, double-click the App's Storyboard file in the Solution Explorer to open it for editing in Xcode's Interface Builder.

For now we just want to see what Menus and Menu Items are available by default and how they have been automatically exposed to code via a set of predefined Outlets and Actions (for more information see our Outlets and Actions documentation).

Later we'll be using these built-in Actions to enable and disable items from code and provide our own functionality when they are selected. Mac application before adding any UI items or code, you'll notice that some items are automatically wired-up and enabled for you (with fully functionality automatically built-in), such as the Quit item in the App Menu: While other Menu Items, such as Cut, Copy and Paste are not: Let's stop the application and double-click the file in the Solution Explorer to open it for editing in Xcode's Interface Builder.

Next, drag a Text View from the Library onto the Window's View Controller in the Interface Editor: In the Constraint Editor let's pin the Text View to the Window's edges and set it where it grows and shrinks with the window by clicking all four Red I-Beams at the top of the editor and clicking the Add 4 Constraints button: Save your changes to the user interface design and switch back the Visual Studio for Mac to synchronize the changes with your Xamarin. Now start the application, type some text into the text view, select it and open the Edit menu: Notice how the Cut, Copy and Paste are automatically enabled and fully functional, all without writing a single line of code. Remember the built-in predefine Actions that come wired-up to the default Menu Items (as presented above), most of the Cocoa User Interface elements that are part of mac OS have built in hooks to specific Actions (such as ).

Since we want this to be an application wide function and not limited to a give window or UI element, we're going to add the code to handle this to our Application Delegate.

In the Solution Explorer, double-click the Let's run the application now and open the File menu: Notice that the Open menu item is now enabled.

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