使用功能测试你可以测试操作和图形用户界面对象的外观。

With a functional test, you can test both the operation and the appearance of GUI objects.

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类似地，用户界面对象的状态也应该对用户是显而易见的。

Similarly, the status of user interface objects should be apparent to users.

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这些处理程序自动启用和禁用用户界面对象，即菜单项和工具栏按钮。

These handlers automate enabling and disabling the user-interface objects - menu items and toolbar buttons.

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