void Test::ImgSave(){
	
	fsn.DefaultExt("png");
	if(!fsn.ExecuteSaveAs()) return;
	String fn = fsn;
	int w = 10000;
	int h = 10000;
	
	work.Run([=] {
		
		ImageDraw dw(w, h);
		dw.DrawRect(0, 0, w, h, White());        
		ImageBuffer img(dw);
		img.SetDPI(Size(300,300));
		PNGEncoder encoder;

		encoder.SaveFile ( fn, img ); //How to track progress of this?
		
		GuiLock __;
		statusbar = "Saved!";
	});
	
}