Draws the background of the text view.
SDK
Framework
func drawBackground(in rect: NSRect)
rectThe rectangle in which to draw the background.
Subclasses can override this method to perform additional drawing behind the text.
func setMarks the receiver as requiring display.
var shouldA Boolean value that determines whether the receiver should draw its insertion point.
func drawDraws or erases the insertion point.
func setAttempts to set the frame size as if by user action.
func cleanReleases the drag information still existing after the dragging session has completed.
func showCauses a temporary highlighting effect to appear around the visible portion (or portions) of the specified range.