CODEWITHSUNDEEP
swiftmacoscocoa
EggsBlue
EggsBlue

Reputation: 79

How to create a window outside the screen

I am studying MAC OS development and I used Swift and Cocoa to create a window that I want to display outside the screen. My code looks like this：

  @IBAction func tapShowSplitWindow(_ sender: Any) {
        let initRect = NSRect(x: -100, y: -100, width: 300.0, height: 300.0)

        var window = NSWindow(contentRect: initRect,styleMask: .titled, backing: .buffered, defer: false)
        window.contentView = NSView()
        window.contentView?.wantsLayer = true
        window.contentView?.layer?.backgroundColor = NSColor.red.cgColor
        
        window.makeKeyAndOrderFront(self)
    }

The window will appear in the bottom left corner of the screen, and I expect it to be outside the screen.

so why? and how to show it outside

Upvotes: 1

Views: 556

Answers (2)

chunyang.wen
chunyang.wen

Reputation: 242

// Reference: https://stackoverflow.com/questions/35808924/placing-nswindow-at-top-of-screen-without-1-pixel-margin
class FullscreenWindow: NSWindow {
    override func constrainFrameRect(_ frameRect: NSRect, to screen: NSScreen?) -> NSRect {
        print("Rect: \(frameRect)")
        return NSRect(origin: .zero, size: frameRect.size)
    }
}

You can override the constrainFrameRect to set the rect of the window.

Upvotes: 0

Willeke
Willeke

Reputation: 15633

window.makeKeyAndOrderFront(self) moves the window on screen. If you really want the window to be half visible then you can move it back with setFrameOrigin

window.makeKeyAndOrderFront(self)
window.setFrameOrigin(window.frameRect(forContentRect:initRect).origin)

Upvotes: 1

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