1.
Begins, ends, or cancels a drag operation.
启动，中止或取消一个拖动操作。
2.
The drag operation is still terminated by releasing the mouse button.
释放鼠标按键时，拖动操作将立即终止。
3.
This is shown in Figure 19-8. Whenever an object can be selected and dragged, the drag operation should be debounced.
无论什么情况下对象选择或者拖动时，拖动操作都应该去颤动。
4.
Called when an event occurs that could begin a drag operation
当发生可能开始拖动操作的事件时调用
5.
Commonly, using a meta-key while dragging puts the mouse into vernier mode.
可以在拖动操作期间按下元键，鼠标改变成游标模式。
6.
The click-and-drag operation is also the basis for group selection.
如图19-5所示，单击和拖动操作也是成组选择的基础。
7.
It is well suited for canceling drag operations, and we’ll discuss it in more detail later in the chapter.
它适于取消拖动操作，我们将在本章后面更详细地讨论。
8.
After the source object is picked up and the drag operation begins, there must be some visual indication of this.
在选择源对象开始拖动操作后，必须有某些视觉指示。
9.
Another effective method is to make the arrow keys active during a drag operation.
另一个有效的方法是在拖动操作期间激活箭头键。
10.
This provides some protection against initiating an inadvertent drag operation.
这就提供了一种保护机制，避免无意中激活拖动操作。
11.
The repositioning function demands the click-and-drag action, making it unavailable for other purposes.
调整位置这一功能需要使用单击拖动操作，结果是这个操作不能再用于其他目的。
12.
The most visually rich method is to fully animate the drag operation, showing the entire source object moving in real time.
视觉上最生动的方法是使拖动操作完全活动起来，实时地显示整个源对象的移动。
13.
Operational Guidelines for School Official Cites Use: Drag the mouse click ball control, shooting.
操作指南：鼠标左键拖动球控制力度、击。
14.
In a collection of discrete objects, the click-and-drag operation generally begins a drag-and-drop move.
图19-5 在离散对象的集合中，单击并拖动的操作通常会触发一个拖放移动操作。
15.
Auto-scroll is a very important adjunct to drag-and-drop.
自动滚屏是拖放操作重要的补充，当你实现一个操作时，可能不得不实现另一个操作。
16.
When a user clicks and drags with the tool on the drawing area, the tool does its thing.
当用户在画图区域使用工具单击并拖动时，工具就执行操作。
17.
As with dragging, a meta-key is often used to constrain the direction of a resize interaction.
和拖动一样，元键在这里也可以用来约束调整尺寸操作的方向。
18.
Analysis and Checking Computation about Main Performance of 50 Tractor Linkage Operation Double-acting Clutch
50拖拉机联动操纵双作用离合器主要性能的分析与验算