仅在未选中复选框时对其打勾 [英] Tick a checkbox only if it's not selected

问题描述

在Applescript中使用UI脚本时，您可能需要勾选一个复选框:

When UI Scripting in Applescript, you might want to tick a checkbox:

tell application "System Events"
  tell process "Example Process"
    click checkbox "Example Checkbox" of sheet 1 of window 1
  end tell
end tell

这有问题.如果示例复选框已被选中，则实际上您已取消选中该复选框.您如何才能仅在尚未选中的情况下才选中该复选框"?

This has a problem. If the example checkbox is already ticked, you actually un-tick the box. How can you "tick the checkbox only if it's not already ticked"?

推荐答案

各种UI项都有可以测试的属性.对于复选框，值属性将是1还是0，具体取决于是否选中它，因此您可以直接使用该值，也可以将其强制转换为布尔值，例如:

The various UI items have properties you can test. For checkboxes, the value property will be 1 or 0 depending on whether it is checked or not, so you can use the value directly or coerce to a boolean, for example:

tell application "System Events" to tell process "Example Process"
    set theCheckbox to checkbox "Example Checkbox" of sheet 1 of window 1
    tell theCheckbox
        if not (its value as boolean) then click theCheckbox
    end tell
end tell

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