是否可以从WPF用户控件创建ActiveX控件并在非CLI C ++应用程序中使用它？ [英] Can I create a ActiveX Control from a WPF UserControl and use in a non CLI C++ application?

问题描述

我创建了一个Windows窗体用户控件，可以将其公开为ActiveX控件。现在，我尝试使用WPF UserControl进行相同操作。我注意到的Winforms UserControl基类是ComVisible，但是WPF UserControl类不是。我是想做不可能的事吗？

I have created a Windows Forms UserControl that can be exposed as an ActiveX Control. Now I am trying to do the same with a WPF UserControl. The Winforms UserControl base class I noticed is ComVisible however the WPF UserControl class is not. Am I trying to do the impossible?

是实现此目的的唯一方法是编写WPF控件，然后使用ElementHost将其嵌入Winforms UserControl中，然后公开该Winforms是将UserControl作为ActiveX控件吗？

Is the only way to achieve this to write a WPF control and then embed it in a Winforms UserControl using ElementHost and then expose that Winforms UserControl as an ActiveX control?

推荐答案

是的，我认为ElementHost是您有可能需要使用的方法这个工作。

Yes, I think ElementHost is the approach you will need to use if there is a chance of this working.

这是因为WPF控件本质上是无窗口的，所有内容都通过WPF残障的DirectX曲面以保留模式呈现。

This is because WPF controls are inherently windowless with everything being rendered in retained mode via a DirectX surface which WPF maanges.

有一些用于无窗口 ActiveX控件的接口，但是.NET提供的COM互操作也不会将它们映射到WPF对象上。

There are interfaces for "windowless" ActiveX controls but the COM interop provided by .NET does not map these onto WPF objects either.

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