Summary Steps (Cont’d)

// has the component been resized?

if ((curD.width != size().width) || (curD.height != size().height)) {

curD = size();

osImg = createImage (curD.width, curD.height);

osG = osImg.getGraphics();

}

-in the remainder of paint(), draw the canvas/component as normal, but use osG rather than g as the Graphics object on which to draw. Then at the end of paint():

// make changes to off-screen graphics visible on screen

g.drawImage (osImg,0,0,this);

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