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I have to questions here. Learn more. Saving an NSView to a png file? Ask Question. Asked 9 years, 2 months ago. Active 7 years ago. Viewed 4k times. How can I make it save my view as a. Any help is greatly appreciated. Justin Justin 1, 2 2 gold badges 25 25 silver badges 46 46 bronze badges. Active Oldest Votes. Stephen Poletto Stephen Poletto 3, 19 19 silver badges 23 23 bronze badges. Edit: whoops, re-read it. Didn't realize you've already covered that.
Early in January, I detailed here two issues with printing in apps developed using the main Cocoa frameworks which make up AppKit: the first is that printing in Dark Mode propagates that appearance to the pages it outputs, and the second is that print margins are set incorrectly and crop lines. The first problem results from a behaviour which creates work for the developer, that should surely have been handled by AppKit. This is done to avoid printing with an inherited dark appearance. The answer is to print from a separate off-screen view, which you can set to Light Mode. I had been looking for a solution to do this ever since, and this week stumbled across a Swift AppKit example project tucked away in the latest developer documentation, which demonstrates this neatly. To handle printing in Dark Mode properly, you need to add the following three functions to your custom Document.
Advanced drawing using AppKit
In this post, I'll look at drawing a detailed image in code by combining multiple visual elements. Unlike previous posts I've done on drawing in Cocoa, this will focus on the AppKit classes. I was reading an article on the Mac App Store and instead of paying attention to the article or working which is what I was supposed to be doing at the time I found myself staring at the accompanying image a large version of the Mac App Store icon. Being the Cocoa programmer that I am, I found myself mentally deconstructing the icon and wondering how you'd draw something similar in Cocoa.
Export NSView to PNG
The Application Kit interprets right-mouse-down events and left-mouse-down events modified by the Control key as commands to display a contextual menu for the clicked view. Your view subclasses have several alternative approaches for displaying a contextual menu:. Configure in Interface Builder : Add a standalone rootless menu to a nib file and customize it to suit, including the specification of targets and actions. This default menu is also accessible via the NSResponder menu method unless some other NSMenu object has been associated with the view. After you complete any of these procedures, the Application Kit displays the contextual menu whenever the user left-Control-clicks or right-clicks the view. Note that the Application Kit automatically also validates the menu items of contextual menus, unless you request it not to.