PreviewKeyDown 不会触发 ElementHost 中的 Tab 键和箭头键 [英] PreviewKeyDown not firing for Tab and Arrow keys in ElementHost

问题描述

我在 Winforms ElementHost 中有一个 WPF 窗口.KeyDown 和 PreviewKeyDown 事件不会为我的窗口上的 Tab 键和箭头键触发.

I have a WPF window in a Winforms ElementHost. The KeyDown and PreviewKeyDown events are not firing for the Tab and arrow keys on my Window.

KeyUp 和 PreviewKeyUp 似乎工作正常，对于大多数其他键来说，PreviewKeyDown 也是如此，例如:A-Z、0-9

KeyUp and PreviewKeyUp seem to work fine, as does PreviewKeyDown for most other keys, like: A-Z, 0-9

推荐答案

问题是我的窗口是从 Winforms 应用程序打开的.ElementHost.EnableModelessKeyboardInterop() 方法解决了我的问题.

The problem was that my Window was opened from a Winforms application. The ElementHost.EnableModelessKeyboardInterop() method solved my problem.

var myWindow = new MyWindow();
ElementHost.EnableModelessKeyboardInterop(myWindow);
myWindow.Show();

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