RichtextBox去除闪烁光标

 

 

 

 

http://files.cnblogs.com/xe2011/CustomRichTextBox_HideCaret.rar

 

richTextBox能高亮选择，光标仍在，没有光标闪烁

把重RichTextBox类

 

 

去除闪烁光标 http://msdn.microsoft.com/en-us/library/windows/desktop/ms648403%28v=vs.85%29.aspx

using System;

using System.Windows.Forms;

using System.Runtime.InteropServices;



namespace WindowsFormsApplication1

{

    public class CustomRichTextBox:  RichTextBox

    {

        [DllImport("user32.dll")]

        static extern bool HideCaret(IntPtr hWnd);

        protected override void WndProc(ref Message m)

        {

            base.WndProc(ref m);

            HideCaret(Handle);

        }

    }  

}

完整代码

CustomRichTextBox.CS

using System;

using System.Windows.Forms;

using System.Runtime.InteropServices;



namespace WindowsFormsApplication1

{

    public class CustomRichTextBox : RichTextBox

    {

        [DllImport("user32.dll")]

        static extern bool HideCaret(IntPtr hWnd);



        private bool bReadOnly = false;

        public void SetReadMode()

        {

            ReadOnly = true;

            bReadOnly = true;

        }



        public void SetEditMode()

        {

            ReadOnly = false;

            bReadOnly = false;

            Focus();

        }



        protected override void WndProc(ref Message m)

        {

            base.WndProc(ref m);

            if (bReadOnly)

                HideCaret(Handle);

        }

    }  

}

View Code

 

Form1.CS

using System;

using System.Collections.Generic;



using System.Text;

using System.Windows.Forms;





namespace WindowsFormsApplication1

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }



        private void button1_Click_1(object sender, EventArgs e)

        {

            CustomRichTextBox1.SetReadMode();

        }



        private void button2_Click(object sender, EventArgs e)

        {

            CustomRichTextBox1.SetEditMode();

        }

    }

}

View Code

 

 

 

这种写法更彻底，不能选择

using System;

using System.Windows.Forms;

using System.Runtime.InteropServices;



namespace WindowsFormsApplication1

{



    public class CustomRichTextBox : RichTextBox

    {

        private const int WM_SETFOCUS = 0x7;

        private const int WM_LBUTTONDOWN = 0x201;

        private const int WM_LBUTTONUP = 0x202;

        private const int WM_LBUTTONDBLCLK = 0x203;

        private const int WM_RBUTTONDOWN = 0x204;

        private const int WM_RBUTTONUP = 0x205;

        private const int WM_RBUTTONDBLCLK = 0x206;

        private const int WM_KEYDOWN = 0x0100;

        private const int WM_KEYUP = 0x0101;



        protected override void WndProc(ref Message m)

        {

            if (m.Msg == WM_SETFOCUS || m.Msg == WM_KEYDOWN || m.Msg == WM_KEYUP || m.Msg == WM_LBUTTONDOWN || m.Msg == WM_LBUTTONUP || m.Msg == WM_LBUTTONDBLCLK || m.Msg == WM_RBUTTONDOWN || m.Msg == WM_RBUTTONUP || m.Msg == WM_RBUTTONDBLCLK)

            {

                return;

            }

            base.WndProc(ref m);

        }

    }   

}

View Code

附件 http://files.cnblogs.com/xe2011/CustomRichTextBox1ReadMode.rar