Question

I need to draw an image in mac os project. In iOS I can do this using UIGraphicsBeginImageContext.
Please give me an example, how to draw image in mac os or give an analog of UIGraphicsBeginImageContext api.

Answer 1

If you are trying to draw into an NSImage, you’ll want:

NSImage* anImage = [[NSImage alloc] initWithSize:NSMakeSize(100.0,  100.0)];
[anImage lockFocus];

// Do your drawing here...

[anImage unlockFocus];

From the Cocoa drawing documentation.