Layer.update

Function/Meaning

Update image

Type

Method of Layer class

Syntax

update(left, top, width, height)

Arguments

left	Specifies the left edge position of the rectangle to update, in pixels, in display coordinates.
top	Specifies the top edge position of the rectangle to update, in pixels, in display coordinates.
width	Specifies the width of the rectangle to update, in pixels, in display coordinates.
height	Specifies the height of the rectangle to update, in pixels, in display coordinates.

Return Value

None (void)

Description

This method forces the layer to be drawn on the screen.
Screen updates occur automatically when drawing methods are executed, but this method can be used to force a screen redraw.
If all arguments are omitted, the entire layer is redrawn.
This method sets the Layer.callOnPaint property to true.
Until the screen is actually drawn, no matter how many times this method is called, the screen drawing will only occur once (it is cached).