setlinerelative_move_n_lines_.htm
Navigation: ABC Library Reference > ASCIIViewerClass > AsciiViewerClass Methods >====== SetLineRelative (move n lines)  ====== |    |
SetLineRelative( lines ), PROTECTED
| SetLineRelative | Positions the ASCIIViewerClass object to a relative line. |
| Lines | An integer constant, variable, EQUATE or expresssion containing the number of lines to move from the current position. A positive value moves downward; a negative value moves upward. |
The SetLineRelative method repositions the ASCIIViewerClass object lines lines from the current position.
Example:
MyViewerClass.TakeScrollOne PROCEDURE(UNSIGNED EventNo)
CODE
IF FIELD()=SELF.ListBox
CASE EventNo
OF EVENT:Scrollup
SELF.SetLineRelative(-1)
OF EVENT:ScrollDown
SELF.SetLineRelative(1)
END
END
setlinerelative_move_n_lines_.htm.txt · Last modified: 2021/04/15 15:57 by 127.0.0.1