最快的方式获得的WinForms C＃集中控制？ [英] Fastest way to get focused control in WinForms c#?

问题描述

我在应用程序来测试某些键并给予空间，右，左，与其它一些特殊的处理我的主窗体窗口使用ProcessCmdKey。如果用户在TextBox一组嵌套的用户控件内输入的主要形式ProcessCmdKey甚至被称为。我不想处理空格键时，他们都集中在一个TextBox控件，因为他们从来没有能够键入一个空格。我如何可以测试当前焦点窗口的应用范围的基础上的类型？

I'm using ProcessCmdKey in my main form window for the application to test for certain keys and give Space, Right, Left, and a few others special processing. ProcessCmdKey in the main form is called even if the user is typing in a TextBox inside a nested set of user controls. I don't want to process the Space key when they are focused on a TextBox control, since they'd never be able to type a space. How can I test for the type of the currently focused window on an application wide basis?

推荐答案

您可以用此得到的窗口句柄：

You can get the window handle with this:

  [DllImport("user32.dll")]
  private static extern IntPtr GetFocus();

然后你就可以得到与该句柄相关联的.NET控件（如果有）与<一个HREF =http://msdn.microsoft.com/en-us/library/system.windows.forms.control.fromhandle.aspx> Control.FromHandle 。

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