如何在未聚焦的 WinForms TextBox/RichTextBox 中显示光标?

How to show cursor in unfocused WinForms TextBox/RichTextBox?(如何在未聚焦的 WinForms TextBox/RichTextBox 中显示光标?)

问题描述

我需要在 WinForms 应用程序的 RichTextBox 控件中显示光标，即使它不在焦点上.我怎样才能做到这一点?我只找到了 WPF 的方法( How to keep WPF TextBox selection什么时候不专注?)

I need to show cursor in RichTextBox control in WinForms application even when it's not in focus. How can I do this? I found only the way for WPF ( How to keep WPF TextBox selection when not focused?)

推荐答案

你可以使用WinAPI ..

You can use WinAPI ..

 [DllImport("user32.dll", EntryPoint = "ShowCaret")]
 public static extern long ShowCaret(IntPtr hwnd);
 [DllImport("user32.dll", EntryPoint = "HideCaret")]
 public static extern long HideCaret(IntPtr hwnd);

并随时调用 ShowCaret

and call ShowCaret whenever you want

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