[poulh]

I'm drawing an image in an applet

I use g.drawImage(img, x,y..... , this);

where this is the applet. It says that for that argument drawImage should take an ImageObserver.

i have a class called Foo and i want to have a draw function and allow foo to draw itself like this...

draw(Graphics g, Image img, .......)

but I need to pass in an ImageObserver. When I try to pass "this" as an imageobserver i get an error.

what am i doing wrong?

[Kristoff]

If Foo does not implement the ImageObserver interface or extned Component or a subclass of Component then you can't pass this in as the ImageObserver.

But, I suspect that you don't really know what ImageObserver is used for, so you probably don't even need it.

In that case, just do yourself a favor and pass null in as the fourth argument.