Notice that the elements turns blue, the background for the Value field changes color, and that a little blue arrow icon appears in the Test Contents tree on the response node (Figure 16).

注意，元素变成了蓝色，value域的背景颜色发生了改变，一些蓝色的箭头图标出现在了响应节点的Test contents树中(图16)。

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These variables store the value of the period for each column and the background color for each column.

这些变量存储了每一列的 period 值和背景颜色。

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COLORREF value that represents the current background color. If this value is -1, the control is using the system color for the background color.

返回一个代表当前背景颜色的COLORREF值。如果这个值是- 1，则控件正使用系统的颜色作为背景色。

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