To page down move to a higher memory address , click the vertical scrollbar below the thumb 若要向下翻页（移动到较高的内存地址） ，请单击滚动块下方的垂直滚动条。
Returns the size , in pixels , of the track bar slider also known as the thumb that points to the left 返回指向左方的跟踪条滑块（又称滚动块）的大小，以像素为单位。
Event to monitor the movement of the scroll box sometimes referred to as the thumb along the scroll bar 事件来监视滚动框（有时称之为滚动块）沿着滚动条的移动情况。
Returns the size , in pixels , of the track bar slider also known as the thumb that points to the right 返回指向右方的跟踪条滑块（又称滚动块）的大小，以像素为单位。
Specifies the visual state of a track bar slider also known as a thumb that is drawn with visual styles 指定以视觉样式绘制的跟踪条滑块的视觉状态（也称为滚动块） 。
Objects for each state of a vertical scroll box also known as the thumb Visualstyleelement . scrollbar . thumbbuttonvertical成员为垂直滚动框也称为滚动块的每种状态提供
Objects for each state of the slider also known as the thumb of a horizontal track bar Visualstyleelement . trackbar . thumb成员为水平跟踪条的滑块又称滚动块的每种状态提供
Objects for each state of a horizontal scroll box also known as the thumb Visualstyleelement . scrollbar . thumbbuttonhorizontal成员为水平滚动框也称为滚动块的每种状态提供
Objects for each state of the left - pointing track bar slider also known as the thumb Visualstyleelement . trackbar . thumbleft成员为向左跟踪条滑块也称为滚动块的每种状态提供
Objects for each state of the upward - pointing track bar slider also known as the thumb Visualstyleelement . trackbar . thumbtop成员为向上跟踪条滑块（也称为滚动块）的每种状态提供
