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- # NOTE: Derived from ..\blib\lib\Tk\Scrollbar.pm. Changes made here will be lost.
- package Tk::Scrollbar;
-
- # tkScrollStartDrag --
- # This procedure is called to initiate a drag of the slider. It just
- # remembers the starting position of the slider.
- #
- # Arguments:
- # w - The scrollbar widget.
- # x, y - The mouse position at the start of the drag operation.
-
- sub StartDrag
- {my $w = shift;
- my $x = shift;
- my $y = shift;
- return unless (defined ($w->cget("-command")));
- $initMouse = $w->fraction($x,$y);
- @initValues = $w->get();
- if (@initValues == 2)
- {
- $initPos = $initValues[0];
- }
- else
- {
- $initPos = $initValues[2] / $initValues[0];
- }
- }
-
- 1;
-