Syntax

stat = CLR(row1, column1, row2, column2)

Arguments

stat, row1, column1, row2, column2: integer

Platform

DOS (not supported in Axiell Collections and RunAdapl.exe)

Meaning

Deletes a rectangular part of the screen with as coordinates row row1, column column1 as top left corner and row row2, column column2 as bottom right corner. The cleared areas of the screen assume the background colour. The result is '0' if the operation is successful, and '1' if unsuccessful.

Example

CLR(10, 10, 15, 15)

Result

Clears a rectangle from row 10, column 10 to row 15, column 15.