Radio Shack Telephone Interface II Operation Manual

Operation Manual
Computer Graphics
----------TRS-BO ® ----------
SCREEN
Selects Screen
SCREEN lets you select the proper screen.
Example
CALL SCREEN(~)
Sample Program
This example turns off the graphics display, draws a circle,
then turns on the graphics display. The circle is then
visible.
EXAMPLE FOR SCREEN
LOGICAL CMD
CMD=l
CALL GRPINI(~)
CALL CLS
CALL SCREEN (CMD)
CALL SETXY(3~~,l2~)
CALL CIRCLE(l~~,l,~.~,~.~,~.~)
CALL PAINT(l,l)
DO 2~ I=l,l~~~~
CONTINUE
CMD=~
CALL SCREEN (CMD)
END
---------lIadlelllaell---------
-l~8-

Radio Shack Telephone Interface II Specifications

General

Brand	Radio Shack
Model	Telephone Interface II
Category	Desktop
Language	English