In general, the left mouse button is used for all the primary direct-manipulation functions, such as triggering controls, making selections, drawing, and so on.
总的来说，鼠标左键用于所有主要的直接操作功能，如启动控件、选择及绘画等。
If you want to create effective direct-manipulation idioms in your software, you must take care to render data, objects, controls, and cursors with a certain amount of rich graphic detail.
如果你想在软件中创建有效的直接操作习惯用法，必须注意用足够精细而丰富的图形细节来绘制数据、对象、控件和光标。
While we discuss the topic in detail in Chapter 21, in our current discussion of direct manipulation it is worth addressing the mouse interactions required by several controls.
我们现在讨论的直接操作中有必要详细讨论控件所必需的鼠标交互。
While we discuss the topic in detail in Chapter 21, in our current discussion of direct manipulation it is worth addressing the mouse interactions required by several controls.
我们现在讨论的直接操作中有必要详细讨论控件所必需的鼠标交互。
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