如何在WPF中获得重点控制？ [英] How to get the focused control in WPF?

问题描述

我怎样才能得到WPF的当前集中控制？我发现一些WinForms的解决方案，但调用WIN32的API函数，在WPF中无法工作？

/ p>

有没有什么办法可以在WPF中做到这一点？

解决方案

我做了什么

 保护覆盖无效OnPreviewLostKeyboardFocus（KeyboardFocusChangedEventArgs e）
 {
 lostFocusControl = e.OldFocus; 
 
 $ b private void PauseButton_PreviewKeyDown（object sender，KeyEventArgs e）
 {
 //调用OnPreviewLostKeyboardFocus处理函数
} 
  

How can I get a current focused control in WPF?

I found some solution for WinForms, but invoking WIN32 API function, didn't work in WPF?

Is there any way for doing it in WPF?

解决方案

Here's what I did

protected override void OnPreviewLostKeyboardFocus(KeyboardFocusChangedEventArgs e)
{
    lostFocusControl = e.OldFocus;
}

private void PauseButton_PreviewKeyDown(object sender, KeyEventArgs e)
{
    // invoke OnPreviewLostKeyboardFocus handler
}

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