This is another tool for No$gba. If you have not patience to wait the new NDS2xGL, you can try this one. myZoom + myZoomSoft = myZoom V1.8. Just Try it for yourself.
NO $ Zoomer is a utility that piggybacks on NO $ GBA, GBA and NDS emulator. It adds features that are not supported by NO $ GBA. Thus, in the display settings, you can enlarge the screen and even to full screen.