Graphics

DrScheme's graphics library is a simple, easy-to-use toolbox of graphics commands. The library is not very powerful; it is intended as a simple alternative to MrEd's full graphical toolbox.

The graphics library originated as SIXlib, a library of X Windows commands available within Chez Scheme at Rice University. The functionality of that library has been reproduced (with backward compatibility) in the DrScheme version.

• Basic Commands
• Position Operations
• Color Operations
• Draw, Clear and Flip Operations
  • Viewports
  • Pixels
  • Lines
  • Rectangles
  • Ellipses
  • Polygons
  • Strings
  • Pixmaps
• Miscellaneous Operations
• A Basic Example
• A More Complicated Example
• Protecting Graphics Operations
• Mouse Operations
• Keyboard Operations