To solve an obscure problem (don't ask!) I needed to add a Cmd-N action to my MacOS ContentView. I tried working with .onKeypress but that seemed unable to do what I needed - I couldn't specify the Cmd modifier, and it seemed unreliable. I finally realized that what I was after was the same as a button's .keyboardShortcut, but without the button. I added the button but made it invisible, as with:
Button( "New" ) {
print( "New Action" )
// Add more code here.
}
.opacity(0.0) // <<<<< Make it invisible!
.keyboardShortcut("n")
The button disappears to the user, and in fact if you click the invisible region, nothing happens. But the Cmd-N action continued to work. Ideally you would add the button in a region of your View where there was some open space, so that it wouldn't mess up your layout. Or you could play with making the button really small, or putting it in a ZStack on top of something else. Regardless, this allows you to add "undocumented" keyboard commands to your app. If a button can do an action, then you can add a shortcut to do that action.
Tom Coates :::/
PS. The obscure problem I had was that using a Window before a Document Group in the App body, resulted in a loss of the Cmd-N shortcut on the File->New menu. Can't say way. Just the way Swiftui decides to work. To allow Cmd-N to continue to work, I needed this workaround. The user doesn't get the prompt on File->New.
