CODEWITHSUNDEEP
cocoamacosscreenresolution
WrightsCS
WrightsCS

Reputation: 50727

Programmatically get screen size in Mac OS X

I am able to return the screen size using:

- (void) getScreenResolution {

    NSArray *screenArray = [NSScreen screens];
    NSScreen *mainScreen = [NSScreen mainScreen];
    unsigned screenCount = [screenArray count];
    unsigned index  = 0;

    for (index; index < screenCount; index++)
    {
      NSScreen *screen = [screenArray objectAtIndex: index];
      NSRect screenRect = [screen visibleFrame];
      NSString *mString = ((mainScreen == screen) ? @"Main" : @"not-main");

      NSLog(@"Screen #%d (%@) Frame: %@", index, mString, NSStringFromRect(screenRect));
    }
}

Output:

Screen #0 (Main) Frame: {{0, 4}, {1344, 814}}

Is there a way to format {1344, 814} to 1344x814?

Edit:

This works perfectly:

- (NSString*) screenResolution {

    NSRect screenRect;
    NSArray *screenArray = [NSScreen screens];
    unsigned screenCount = [screenArray count];
    unsigned index  = 0;

    for (index; index < screenCount; index++)
    {
        NSScreen *screen = [screenArray objectAtIndex: index];
        screenRect = [screen visibleFrame];
    }

    return [NSString stringWithFormat:@"%.1fx%.1f",screenRect.size.width, screenRect.size.height];
}

Upvotes: 37

Views: 46262

Answers (6)

Leo Dabus
Leo Dabus

Reputation: 236548

edit/update

Swift 4

NSScreen.main?.frame         // {x 0 y 0 w 1,920 h 1,200}
NSScreen.main?.frame.width   // 1,920.0
NSScreen.main?.frame.height  // 1,200.0

Swift 3.x

NSScreen.main()?.frame         // {x 0 y 0 w 1,920 h 1,200}
NSScreen.main()?.frame.width   // 1,920.0
NSScreen.main()?.frame.height  // 1,200.0

Swift 2.x

NSScreen.mainScreen()?.frame         // {x 0 y 0 w 1,920 h 1,200}
NSScreen.mainScreen()?.frame.width   // 1,920.0
NSScreen.mainScreen()?.frame.height  // 1,200.0

Upvotes: 11

j.s.com
j.s.com

Reputation: 1478

In Swift 4.0 you can get the screen size of the main screen:

if let screen = NSScreen.main {
    let rect = screen.frame
    let height = rect.size.height
    let width = rect.size.width
}

If you look for the size of the screen with a particular existing window you can get it with:

var window: NSWindow = ... //The Window laying on the desired screen
var screen = window.screen!
var rect = screen.frame
var height = rect.size.height
var width = rect.size.width

Upvotes: 28

Aron Gates
Aron Gates

Reputation: 21

Swift 3 solution:

NSScreen.main()!.frame

Upvotes: 2

mamady
mamady

Reputation: 231

Finding the screen size in Mac OS is very simple:

NSRect e = [[NSScreen mainScreen] frame];
H = (int)e.size.height;
W = (int)e.size.width;

Upvotes: 20

Jashengmato
Jashengmato

Reputation: 71

For those guy who are looking for a way to get screen resolution:

If you are programming a window based app, you can simply get the resolution from _window.screen.frame.size

Upvotes: 7

GWW
GWW

Reputation: 44161

NSLog(@"%fx%f",screenRect.size.width, screenRect.size.height);

Upvotes: 15

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