blank_erase_graphics_.htm
| Navigation: Language Reference > 13 - Built-in Functions >====== BLANK (erase graphics) ====== |    |
BLANK( [x] [,y] [,width] [,height] )
| 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:
blank_erase_graphics_.htm.txt · Last modified: 2021/04/15 15:57 by 127.0.0.1