🚀 go-pugleaf

Pass an ImageObserver to i1.getWidth() and i1.getHeight(). Since Component
implements ImageObserver, you can pass anything that is derived from
Component, like a Canvas or Frame.

To create the i2 image, you can again use the Component method
createImage(), eg.

Image i3 = myCanvas.createImage(i1.getWidth(myCanvas),
i1.getHeight(myCanvas));

You need to make sure your images are fully loaded before calling getWidth()
and getHeight(). The easiest way to do this is to call a utility routine
like the following, after each call to getImage():

    public static void waitForImage(Component component,
                                    Image image) {
        MediaTracker tracker = new MediaTracker(component);
        try {
            tracker.addImage(image, 0);
            tracker.waitForID(0);
        }
        catch(InterruptedException e) { }
    }

And finally, the last parameter to pass to drawImage is (you guessed it)
another ImageObserver. Following the example from above, you would call:

g1.drawImage(i1, 0, 0, myCanvas);

Hope this helps.

Dan Acton
Beak International Inc.


Tycho Luyben wrote in message <6bj03i$bfg1@forums.borland.com>...
>Hi,
>
>I'm playing around with gif in applications that do not show anything on
the
>screen (like CGI etc); I need to do the following;
>
>Image i1 = toolkit.getdefaulttoolkit.getimage("image1.gif");
>Image i2 = toolkit.getdefaulttoolkit.getimage("image2.gif");
>Image i3 = createimage(i1.getwidth(???),i1.getheight(???));
>Graphics g1 = i3.getgraphics();
>g1.drawimage(i1,0,0,???);
>g1.drawimage(i2,0,0,???);
>
>and then write it to a file... The writing to a file was no problem, but i
>don't know what to put instead of the ???...
>
>Has someone written an servlet that does this and can that someone help me?
>
>Thanks...
>
>Please Post & Reply...
>
>
>
>