CALL_SCR

CALL SCREEN - Call a screen

Basic form

CALL SCREEN scr.

Addition

... STARTING AT x1 y1 ... ENDING AT x2 y2

Effect

Calls the screen scr ; scr is the number of a screen of the main program. You use SET SCREEN 0. or LEAVE SCREEN. to define the return from the CALL screen .

Addition

... STARTING AT x1 y1 ENDING AT x2 y2

Effect

The coordinates x1 , y1 (start column and start line in the window) and x2 , y2 (end column and end line in the window) define the size and position of the CALL screen ("top left - bottom right"). Besides these coordinates, you can also see the contents of the primary window, but cannot perform any action there.

Note

• If " ENDING AT ... " is not specified, suitable values are substituted for x2 and y2 , taking into account the size of the called screen .

Note

Runtime errors
DYNP_TOO_MANY_CALL_SCREENS : No further screen level (call screen); the maximum number of nested screen levels is restricted to 50 at present.

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