Returns a bitmap-representation object suitable for caching the specified portion of the view.
A rectangle defining the area of the view to be cached.
NSBitmapImageRep object or
nil if the object could not be created.
Passing the visible rectangle of the view (
[self visibleRect]) returns a bitmap suitable for caching the current contents of the view, including all of its descendants.
Updates the view’s content by modifying its underlying layer.
Overridden by subclasses to draw the view’s image within the specified rectangle.
A Boolean value indicating whether drawing commands will produce any results.
A Boolean value indicating whether the view can draw its contents on a background thread.
The portion of the view that is not clipped by its superviews.
Returns a Boolean value indicating whether the specified rectangle intersects any part of the area that the view is being asked to draw.
A Boolean value indicating whether AppKit’s default clipping behavior is in effect.