Draws a scroll button on a scroll bar control.

在卷轴控制项上绘制卷轴按钮。

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Draws the specified scroll button on a scroll bar control in the specified state, on the specified graphics surface, and within the specified bounds.

在指定的图形表层和指定的范围内，于卷轴控制项上绘制指定状态的指定卷轴按钮。

youdao

Just point to a link anywhere on a webpage and press the middle mouse (scroll) button. It opens the page in a new TAB.

指向任何一个链接并按下鼠标中键(即滚轮)，然后该页面会在新标签打开。

youdao

Just point to a link anywhere on a webpage and press the middle mouse (scroll) button. It opens the page in a new TAB.

指向任何一个链接并按下鼠标中键(即滚轮)，然后该页面会在新标签打开。

youdao