QBasic 1.1: CLS Statement

Explanation

Clears the screen.

Useful and cross-version information about the programming environments of QBasic, QuickBasic and Visual Basic for DOS.

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CLS [{0 | 1 | 2}]

CLS	Clears either the text or graphics viewport. If a graphics viewport has been set (using VIEW), clears only the graphics viewport. Otherwise, clears the text viewport or entire screen.
CLS 0	Clears the screen of all text and graphics.
CLS 1	Clears the graphics viewport or the entire screen if no graphics viewport has been set.
CLS 2	Clears the text viewport.