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。
A pop-up menu is available when you select the root target WSDL node with the right mouse button.
当您用鼠标右键选择根目标WSDL结点时弹出菜单是可用的。
You should position your cursor before right clicking, because most of the functions in the pop-up menu use the position of the cursor before you pressed the right mouse button.
在右击之前你应该首先决定鼠标指针的位置，因为在弹出式菜单中的大部分功能都是在光标位置附近而被触发实现。
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