track bar

• Draws the specified number of vertical track bar ticks with visual styles
  以视觉样式绘制指定数目的垂直跟踪条刻度。
• That represents the slider of a horizontal track bar in the disabled state
  ，它表示处于禁用状态的水平跟踪条的滑块。
• Draws the specified number of horizontal track bar ticks with visual styles
  用视觉样式绘制指定数目的水平跟踪条刻度。
• Maximum are the smallest and largest values that can be represented on the track bar
  为跟踪条上能表示的最大和最小值。
• Gets a visual style element that represents the track for a vertical track bar
  获取表示垂直跟踪条的轨道的视觉样式元素。
• Gets a visual style element that represents the track for a horizontal track bar
  获取表示水平跟踪条的轨道的视觉样式元素。
• Draws a vertical track bar slider also known as the thumb with visual styles
  以视觉样式绘制一个垂直跟踪条滑块（又称滚动块） 。
• Gets a visual style element that represents a single tick of a vertical track bar
  获取表示垂直跟踪条的单个刻度的视觉样式元素。
• Draws a horizontal track bar slider also known as the thumb with visual styles
  以视觉样式绘制一个水平跟踪条滑块（又称滚动块） 。
• Gets a visual style element that represents a single tick of a horizontal track bar
  获取表示水平跟踪条的单个刻度的视觉样式元素。