java.lang.Object
|
+----java.awt.Component
|
+----java.awt.Canvas
A Canvas component represents a blank rectangular
area of the screen onto which the application can draw or from
which the application can trap input events from the user.
An application must subclass the Canvas class in
order to get useful functionality such as creating a custom
component. The paint method must be overridden
in order to perform custom graphics on the canvas.
public Canvas()
public void addNotify()
public void paint(Graphics g)
Canvas should override this method in
order to perform some useful operation.
The paint method provided by Canvas
redraws this canvas's rectangle in the background color.
The graphics context's origin (0, 0) is the top-left corner of this canvas. Its clipping region is the area of the context.
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