custom NSSliderCell

Question

I\'ve sort of accomplised implementing a custom slider cell that can draw over using images for the scroll bar and knob. The only obstacle that is in the way now is this, wh

Answer 1

Remove all the -lockFocus and -unlockFocus messages. The framework will take care of setting up the drawing context for you before -drawBarInside:flipped: or -drawKnob: are ever sent.

Also, you shouldn't be creating any objects within a draw method.