| eraseWindow() | Clears the screen |
| setColor(color) | Set current pen color |
| setLinestyle(style) | Set current pen style |
| setLinewidth(width) | Set current pen width |
| setTextColor(foreground, background) | Set text colors |
| setMarker(type,color) | Set marker attibutes |
| setRasterOp(rasterOp) | Set raster operator |