Re: [Java-gnome-developer] Question concerning pixel graphics

[Markus F. <mar...@t-...>]

> For learning about java-gnome and java, I'm programming a mandelbrot
> generator. So, I'd like to know how I could access single pixels in a
> pixmap or a widget.
So far, so good. I've made it by changing the gdk.defs-file. The next
thing is, that I don't know how to draw things in a different color
than black. I thought it should be something like this:
\.\...
GdkGC gc = new GdkGC(mainwindow.getWindow());
GdkColor red = new GdkColor();
red.parse("red");
gc.setForeground(red);
gwin = drawingarea.getWindow();
gwin.drawRectangle(gc, false, 10, 10, 10, 10);
\.\...
should, afaic, draw a red rectangle into the drawingarea. But a black
rectangle is drawn.

Btw. shouldn't GdkPixmap and GdkBitmap be subclasses of GdkWindow,
as in gdk?

Where am I wrong?