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@...CLEAR
Clear a rectangular region of the screen
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Syntax
@ <nTop>, <nLeft> [CLEAR
[TO <nBottom>, <nRight>]]
[DOUBLE] [COLOR <cColor>]
Arguments
<nTop> and <nLeft> define the upper-left corner coordinate.
TO <nBottom>, <nRight> defines the lower-right corner
coordinates of the screen region to CLEAR. If the TO clause is not
specified, these coordinates default to MAXROW() and MAXCOL().
Description
@...CLEAR erases a rectangular region of the screen by filling the
specified region with space characters using the current standard color
setting. After @...CLEAR erases the designated region, the cursor is
located in the upper corner of the region at <nTop> + 1 and <nLeft> + 1.
ROW() and COL() are also updated to reflect the new cursor position.
Examples
. This example erases the screen from 10, 10 to 20, 40, painting
the region blue and then displaying a bright cyan box on blue:
SETCOLOR("BG+/B")
@ 10, 10 CLEAR TO 20, 40
@ 10, 10 TO 20, 40
Files Library is CLIPPER.LIB.
See Also:
@...BOX
CLEAR SCREEN
SCROLL()
SETCOLOR()
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