In this case, you create a color instance and use it to set a particular pixel within the display window (see Listing 2 and Figure 3, cell b).

在本例中，我们创建了一个颜色实例并用它来设置显示窗口内的某个像素点(参见清单2和图3中的cell b)。

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Each pixel may have an associated color made up of component r, G and B values.

每个像素均可具有由分量R值、G值和B值构成的关联颜色。

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