The support for reacting to mouse wheel events.
支持响应鼠标滚轮事件。
You can zoom in or out of a diagram by pressing the Ctrl key while moving the mouse wheel.
您可以在移动鼠标滚轮的同时，通过按ctrl键来放大或者缩小图表。
Documentation states that mouse wheel events propagate up the container hierarchy, but the bug prevents this from happening so you'll need to attach the listener to the button.
文档声明鼠标滚轮事件向上传递容器层次结构，但错误导致这件事无法发生，所以您需要为按钮增加一个侦听器。
At this point, you have a fully functional map pulling data in from multiple sources, including default functionality to pan with the mouse and zoom in and out with the mouse wheel.
此时，您就拥有了一个完全可以发挥作用的地图，可从多个资源拉入数据，包括默认的用鼠标平移以及用鼠标滑轮缩放的功能。
By default, you can zoom using the mouse wheel.
在默认条件下使用鼠标滚轮可以实现缩放效果。
Set how much to scroll when the mouse wheel is rotated one notch.
设定当滑鼠滚轮旋转一格时要卷动的行数。
The mouse wheel combines the features of a wheel and a mouse button.
鼠标轮将轮和鼠标按钮的功能结合在了一起。
Scrolling mouse wheel while holding the right mouse button to turn pages in reading pane.
在阅读区转动鼠标滚轮时按住右键不放可以前后翻页。
The framework calls this member function as a user rotates the mouse wheel and encounters the wheel's next notch.
当用户滚动鼠标滚轮并遇到滚轮的下一个刻度时，框架就调用这个成员函数。
Adds function of setting volume by mouse wheel (over systray, middle click to mute), and adds multimedia keys support.
增加滚轮调节音量功能(在托盘，中键静音)和媒体键支持。
Adds function of setting volume by mouse wheel (over systray, middle click to mute), and adds multimedia keys support.
增加滚轮调节音量功能(在托盘，中键静音)和媒体键支持。
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