Office功能区中的三态复选框

Question

是否可以在MS Office 2016色带上具有三态复选框？

Answer 1

不。 Fluent UI具有有限数量的具有预定义功能的控件。您可以找到以下文章中介绍的所有功能区UI控件：

• Customizing the 2007 Office Fluent Ribbon for Developers (Part 1 of 3)
• Customizing the 2007 Office Fluent Ribbon for Developers (Part 2 of 3)
• Customizing the 2007 Office Fluent Ribbon for Developers (Part 3 of 3)

checkBox控件提供getPressed回调，该回调返回布尔值：

C#: bool GetPressed(IRibbonControl control)
VBA: Sub GetPressed(control As IRibbonControl, ByRef returnValue)
C++: HRESULT GetPressed([in] IRibbonControl *pControl, [out, retval] VARIANT_BOOL *pvarfPressed)
Visual Basic: Function GetPressed(control As IRibbonControl) As Boolean

没有第三种状态。