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Navigation:  Language Reference > 13 - Built-in Functions >====== BLANK (erase graphics) ====== Previous pageReturn to chapter overviewNext page

BLANK( [x] [,y] [,width] [,height] )

blk2blue.jpg

BLANK Erases all graphics written to the specified area of the current window or report.
X An integer expression that specifies the horizontal position of the starting point. If omitted, the default is zero.
Y An integer expression that specifies the vertical position of the starting point. If omitted, the default is zero.
Width An integer expression that specifies the width. If omitted, the default is the width of the window.
Height An integer expression that specifies the height. If omitted, the default is the height of the window.

The BLANK procedure erases all graphics written to the specified area of the current window or report. This procedure is valid in Clarion Win32 Windows, and also for REPORT structures in both Clarion Win32 and Clarion#. Controls are not erased. BLANK with no parameters erases the entire window or report.

Example:

MDIChild WINDOW('Child One'),AT(0,0,320,200),MDI,MAX,HVSCROLL

         !window controls

        END

CODE

OPEN(MDIChild)

ARC(100,50,100,50,0,900) !Draw arc

BLANK                   !Then erase it

See Also:

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blank_erase_graphics_.htm.txt · Last modified: 2021/04/15 15:57 (external edit)