On Thu, 2006-11-09 at 18:10 -0800, Mark E Mason wrote: > Hello all, > > I'm looking for a pointer for doing low-level drawing in a Mono/C# > application developed under MonoDevelop. Basically, all I need to do is > allocate a pixel buffer, manually set specific pixels to specific > colors, and have it drawn correctly in whatever widget it's attached to. > [Basically I'm taking the results of numerical functions, and > representing them as colors in a pixmap]. > > I've been looking at using a Pixbuf (or was it Pixmap) and a DrawingArea > widget, but getting a handle on where to start has been difficult (ie. > How to blit the pixmap into the DrawingArea after an expose event, etc). > I looked at Cairo briefly, but even the docs at go-mono says it's > overkill for what I'm doing. > > Any pointers or advice greatly appreciated.
I think you want to start with something like this: class MyDrawingArea : Gtk.DrawingArea { Gdk.Pixbuf mypixbuf; void OnExposed (object o, ExposeEventArgs args) { mypixbuf.RenderToDrawable (this.GdkWindow, Style.WhiteGC, 0, 0, x, y, w, h, RgbDither.None, 0, 0); } } Look up Gdk.Pixbuf on http://www.go-mono.com/docs/ and read about its member RenderToDrawable for more details. / Cody _______________________________________________ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list