隐藏一个RichTextBox的滚动条 [英] Hide scrollbars of a RichTextBox

问题描述

我试图写这样的暗房一个简单的文本编辑器，只是一个RichTextBox（或者一个TextBox）在里面。我的问题是，我不能使用鼠标滚轮的滚动，除非我有一个垂直滚动条。有什么办法来隐藏这个滚动条，仍然能够滚动鼠标滚轮？

I'm trying to write a simple text editor like DarkRoom with just a RichTextBox (or alternatively a TextBox) in it. My problem is that I can't use the mouse wheel for scrolling unless I have a vertical scrollbar. Is there any way to hide this scrollbar and still be able to scroll with the mouse wheel?

到目前为止，我有几个想法怎么可以这样做，但不知道如何实现它们。

So far I have several ideas how this could be done, but no idea how to implement them.

• 使用鼠标滚轮事件
重新创建滚动code
• 改变滚动条的视觉风格，以隐藏它或使其不太明显
• 在写我自己的TextBox控件
• 在重叠用别的东西来隐藏他们的滚动条

• re-create the scrolling code using a MouseWheel event
• change the visual style of the scrollbar to hide it or make it less visible
• write my own TextBox widget
• overlap the scrollbars with something else to hide them

PS：使用任意的Win32的东西是不是一种选择

P.S.: Using any win32 stuff is not an option.

推荐答案

是的，你必须捕捉.MouseWheel和.MouseMove事件。请参阅<一href="http://social.msdn.microsoft.com/forums/en-US/winforms/thread/8e83865a-0cb9-4e7a-94db-356d542e5680/"相对=nofollow>这个帖子。

Yes, you will have to capture the .MouseWheel and .MouseMove events. See this post.

好了，像做以下操作：

1. 添加一行形式加载事件。

1. Add a line in form load event.

private void Form1_Load(object sender, EventArgs e)
{
    this.richTextBox1.MouseWheel += new MouseEventHandler(richTextBox1_MouseWheel);
}

添加鼠标滚轮事件以下。

Add following in mouse wheel event.

void richTextBox1_MouseWheel(object sender, MouseEventArgs e)
{
    if (e.Delta > 0)
    {
        //Handle mouse move upwards
        if (richTextBox1.SelectionStart > 10)
        {
            richTextBox1.SelectionStart -= 10;
            richTextBox1.ScrollToCaret();
        }
    }
    else
    {
        //Mouse move downwards.
        richTextBox1.SelectionStart += 10;
        richTextBox1.ScrollToCaret();
    }
}

让我知道，在这两种情况下，如果你想的一样运行样本;或者，如果你不喜欢的解决方案（0：

Let me know in either cases, if you would want the running sample of the same; or if you are not liking the solution (0:

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