| clear_rectangle | Delete a rectangle on the output window. |
| clear_window | Delete an output window. |
| close_window | Close an output window. |
| copy_rectangle | Copy all pixels within rectangles between output windows. |
| dump_window | Write the window content to a file. |
| get_os_window_handle | Get the operating system window handle. |
| get_window_attr | Get window characteristics. |
| get_window_extents | Information about a window's size and position. |
| get_window_pointer3 | Access to a window's pixel data. |
| get_window_type | Get the window type. |
| move_rectangle | Copy inside an output window. |
| new_extern_window | Create a virtual graphics window under Windows NT. |
| open_textwindow | Open a textual window. |
| open_window | Open a graphics window. |
| query_window_type | Query all available window types. |
| set_window_attr | Set window characteristics. |
| set_window_dc | Set the device context of a virtual graphics window (Windows NT). |
| set_window_extents | Modify position and size of a window. |
| set_window_type | Specify a window type. |
| slide_image | Interactive output from two window buffers. |