How to save a drawn image in our own format

Question

hai,
i'm developing a designing tool. in that user can draw any type of diagrams. i have to save the drawn image in my own extention... how can i do it. provide me some sample code if u can...

Answer 1

mituli wrote:
Thanks,
but I am using Image.getScaledImage() to get scaled image(obviously). This returns an Image object. When I call getGraphics() on this object it throws an exception:
Exception in thread "AWT-EventQueue-0" java.lang.UnsupportedOperationException: getGraphics() not valid for images created with createImage(producer) at sun.awt.image.ToolkitImage.getGraphics(ToolkitImage.java:292)Try using createGraphics() instead.
In javadoc i found out that this method can be used only on off-screen image. What is off-screen image?Use BufferedImages, you'll have a lot less problems.
Anyway I can't use this object in ImageIO.write because it requires RenderedImage object which can only be BufferedImage object.
I tried to cast Image to BufferedImage but can't be ... If you need to get your Image painted onto a BufferedImage, you can do it like this:
BufferedImage bi = new BufferedImage(myImageWidth, myImageHeight, BufferedImage.TYPE_INT_RGB);
Graphics2D  g = bi.createGraphics();
g.drawImage(myImage, 0, 0, null);