One Quickie

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Getting a CGContext from Cocoaland (Graphics->General)

You can use CG (CoreGraphics) functions inside of a Cocoa view - pass the graphics port of the current context to the CG functions, like this:

#define cgrect(nsrect) (*(CGRect *)&(nsrect))

- (void) drawRect: (NSRect) rect
{
    NSRect bounds = [self bounds];

    NSGraphicsContext *cocoaContext = [NSGraphicsContext currentContext];
    CGContextRef context = (CGContextRef)[cocoaContext graphicsPort];

    CGContextSetLineWidth (context, 5.0);

    CGContextBeginPath(context); {
        CGContextAddRect (context, cgrect(bounds));
        CGContextSetRGBFillColor (context, 1.0, 0.9, 0.8, 1.0);
    } CGContextFillPath(context);

} // drawRect