ntk scrollbar command implemented as ::itcl::extendedclass ::ntk::classes::scrollbar

Syntax:

     :   '''ntk scrollbar''' ''windowPathName'' ?''options''?

Options:

    * '''-orient''': orientation of the scrollbar (default: '''vertical''')
    * '''-command''': command callback (default: {})
    * '''-scrollbarwidth''': width of the scrollbar (default: '''20''')
    * '''-slidercolor''': color of the slider as rgbaList (default: '''127 127 150 255''')

MethodVariables:

    * '''buttonAfterId''' default: {}
    * '''clickX''' default: '''0'''
    * '''clickY''' default: '''0'''
    * '''dragging''' default: '''0'''
    * '''buttonTimerId''' default: {}
    * '''buttonIdleId''' default: {}
    * '''scaleIdleId''' default: {}
    * '''scale''' default: '''0.0 1.0'''
    * '''scaleOffset''' default: '''0'''
    * '''scaleXDelta''' default: '''0'''
    * '''scaleYDelta''' default: '''0'''
    * '''x1''' default: '''0'''
    * '''x2''' default: '''0'''
    * '''y1''' default: '''0'''
    * '''y2''' default: '''0'''

Public commands:

    * '''setView''' ''rstart rend''

Inheritance:

    * theme

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