Sets the screen mode and other characteristics of your screen.
 
SCREEN mode% [,[colorswitch%] [,[activepage%] [,visualpage%]]]
 
    - mode%           Sets the screen mode. See <SCREEN MODES>.
    - colorswitch%    A value (0 or 1) that switches between color and
                      monocolor display (modes 0 and 1 only):
 
                      Mode    Value       Action
                      ----    --------    --------------
                      0       0           Disables color
                      0       Nonzero     Enables color
                      1       0           Enables color
                      1       Nonzero     Disables color
 
    - activepage%     The screen page that text or graphics output writes to.
    - visualpage%     The screen page that is currently displayed on your
                      screen.
 
Example:
    'This example requires a color graphics adapter.
    SCREEN 1        '320 x 200 graphics
    LINE (110, 70)-(190, 120), , B
    LINE (0, 0)-(320, 200), 3, , &HFF00
 
See Also    <CIRCLE>    <COLOR>    <DRAW>    <LINE>      <PAINT>
            <SCREEN FUNCTION>      <VIEW>    <WINDOW>    <SCREEN MODES>