X11 Window systems

Image display windows can be created and deleted from MIDAS using the commands CREATE/DISPLAY and DELETE/DISPLAY, respectively. All MIDAS display commands will work on these window displays, some have to be implemented in software which makes them slow e.g. ZOOM and SCROLL. The cursor is implemented through the mouse on which the left button is Enter and the middle button (or right button on a 2 button mouse) is Exit. When the cursor is positioned on a feature it is also possible to use the Return key to read the cursor location. Some commands use a second cursor which is implemented through the arrow key on the keyboard.