🚀 go-pugleaf

John Hines <jrhines@onramp.net> skrev i
diskussionsgruppsmeddelandet:8a128u$35q1@bornews.borland.com...
> I have some code I inherited where a complex image is written onto an
> off-screen JFrame-derived class.  I need to write the image (don't need
the
> JFrame) out to a file in standard format.  This would be easy if I had the
> picture as a bitmap or (preferably) as an Image.  How do I do this?
>
> Can somebody toss me a hint or point me to a book or some commercial code?

Presumably, you have a method somewhere along the lines of

public void paint(Graphics g)

which causes the complex image to be drawn to the graphics g.

Create a BufferedImage of appropriate size and color format, then

paint(bimg.createGraphics());

As for writing the image, check out the com.sun.image.codec.jpeg package
(included with Java 2). For other image formats, you may have to download
Java Advanced Imaging (JAI). Check out http://java.sun.com/products/

HTH