VIEW PRINT Statement

 Action

 Sets the boundaries of the screen text viewport.

 Syntax


  VIEW PRINT  topline%  TO  bottomline%


 Remarks

 The argument  topline% is the number of the upper line in the text viewport;
  bottomline% is the number of the lower line.

 Without  topline% and  bottomline% parameters, the  VIEW PRINT statement
 initializes the whole screen area as the text viewport. The number of lines
 in the screen depends on the screen mode and whether or not the -H option
 was used when BASIC was started. For more information, see the entry for the
  WIDTH statement, and Chapter 3, "File and Device I-O" in the  Programmer's
 Guide.

 Statements and functions that operate within the defined text viewport
 include  CLS,  INPUT,  LOCATE,  PRINT, the  SCREEN function, and  WRITE.

 See Also

  CLS,  LOCATE,  PRINT,  SCREEN Function,  SCREEN Statement,  WIDTH

 Example

 The following example draws random circles in a graphics viewport and prints
 in a text viewport. The graphics viewport is cleared after 30 circles have
 been drawn. The program clears the text viewport after printing to it 45
 times.

 RANDOMIZE TIMER

 SCREEN 1

 ' Set up a graphics viewport with a border.

 VIEW (5, 5)-(100, 80), 3, 1

 ' Set up a text viewport.

 VIEW PRINT 12 TO 24

 ' Print a message on the screen outside the text viewport.

 LOCATE 25, 1. PRINT "Press any key to stop."

 Count = 0

 DO

    ' Draw a circle with a random radius.

    CIRCLE (50, 40), INT((35 - 4) * RND + 5), (Count MOD 4)

    ' Clear the graphics viewport every 30 times.

    IF (Count MOD 30) = 0 THEN CLS 1

    PRINT "Hello. ";

    ' Clear the text viewport every 45 times.

    IF (Count MOD 45) = 0 THEN CLS 2

    Count = Count + 1

 LOOP UNTIL INKEY$ <> ""