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Creating and Displaying an Image

Hi all,

I am trying to write a program that can create an image by simply
plotting pixel by pixel on my screen (or off-screen) and then being able
to display it on screen. I would ultimately like to see something like:

[Object setPixelx:20 y:30 color:blue];
[Object Display];

I had a look at NSImage but it seems that this class is for displaying
images that are already created and is not really used for drawing pixels
to a graphics port.

Hope this makes sense.

Stuart

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