Question

I would like to draw a small square, which is 4×4 pixels. I would like to be able to adjust its color at runtime (not like a color well or anything, the user doesn’t need to be able to). I had been doing this with an NSImage, but this uses up a lot of resources and I can’t adjust, and making a different little color swatch in Photoshop to change it to for any new color is a huge pain, so it is no longer suitable. How can this be done on Mac OS X ?

Answer 1

The simplest way to draw a 4×4 square at coordinate 0,0 (bottom left) on Mac OS X:

NSRectFill(NSMakeRect(0.0, 0.0, 4.0, 4.0));

The simplest way to set the colour used for that sort of drawing:

[[NSColor colorWithCalibratedRed:... green:... blue:... alpha:1.0] set];

😉