Respond to the right mouse button down event by setting up a hit test results callback.

以便在命中测试结果枚举期间存储值。

youdao

The left mouse button down event is the most likely event to have class handling in a control.

滑鼠左键按下事件是最有可能在控制项中包含类别处理的事件。

youdao

Highlight the value: Hold the left mouse button down and drag your mouse pointer over the value.

高亮显示此值：按住鼠标左键向下，把您的鼠标指针拖到此值上。

youdao

Look for the enemies to start up a power blow and block it to get a chance for a nasty retaliatory strike, and charge up your own power attacks by holding down the mouse button.

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While both the left and right mouse buttons do require a solid press, they're large and responsive all the way up to the apex of the mouse, and there's actually only a single spot (on the extreme upper-right-hand corner of the right mouse button) where it won't actuate if pressed down.

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