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Article #19664

How to create an Image for painting from a non GUI class

#19664
From: Morteo, Karl
Date: Mon, 12 Jan 1998 00:00
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I am trying to create a non GUI class with a function the same as
Component.createImage(int width, int height). 

The image is created with a call like this 

	image = Toolkit.getDefaultToolkit().createImage(new
MyImageSource(width, height));

I am using a dummy MyImageSource even though I actually want an empty
width by height image. All seems well unless I try to get the image
'Graphics' with a call to image.getGraphics() which always generates a
class cast exception.

Do I need to perform some kind of image initialisation or preperation
before I can get the Graphics ? If so how ?

Any assitance much appreciated,

Karl Morteo
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From: "Morteo, Karl" <kmorteo@iee.org>
Subject: How to create an Image for painting from a non GUI class
Date: 1998/01/12
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