Video display modes

From Rosetta Code
Video display modes is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.

The task is to demonstrate how to switch video display modes within the language. A brief description of the supported video modes would be useful.

Locomotive Basic

The Amstrad CPC464 supports three video modes:

  • Mode 0 - Graphics: 160x200 Text: 20x25 Colours: 16
  • Mode 1 - Graphics: 320x200 Text: 40x25 Colours: 4
  • Mode 2 - Graphics: 640x200 Text: 80x25 Colours: 2

Note that text can be displayed using conventional means in all display modes.

<lang locobasic>10 MODE 0: REM switch to mode 0</lang>

UNIX Shell

If the system runs X11 and supports XRANDR, then

<lang bash>$ xrandr -q</lang>

lists the available modes, and

<lang bash>$ xrandr -s 1024x768</lang>

sets the screen to the given size.

With modern LCD monitors, this feature is not very useful. These monitors have a single best mode, and the X server discovers and uses that mode by default. Smaller screen modes might work, but make a blurry picture.

Retrieved from "https://rosettacode.org/wiki/Video_display_modes?oldid=187152"