REXXUTIL Text I/O Functions

• SysCls()
  • returns a "0" when the screen has been successfully cleared

• SysTextScreenSize()
  • returns two values indicating the size of the screen in rows and columns, for example, "24" and "80"

• SysTextScreenRead(row, col[, length])
  • returns the text string read from the screen starting at "row" row and "col" column for the length specified by "length"
  • if "len" is omitted, the read continues to the end of the screen

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