C#自定义MessageBox 按钮的Text

 运行效果：

代码：

using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;
 
 
namespace Sphinx.Utils
{
    public class MessageBoxEx
    {
        public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, string[] buttonTitles)
        {
            MessageForm frm = new MessageForm(buttons, buttonTitles);
            frm.Show();
            frm.WatchForActivate = true;
            DialogResult result = MessageBox.Show(frm, text, caption, buttons);
            frm.Close();
 
            return result;
        }
 
        public static DialogResult Show(string text, string caption, MessageBoxButtons buttons,
            MessageBoxIcon icon, MessageBoxDefaultButton defaultButton, string[] buttonTitles)
        {
            MessageForm frm = new MessageForm(buttons, buttonTitles);
            frm.Show();
            frm.WatchForActivate = true;
            DialogResult result = MessageBox.Show(frm, text, caption, buttons, icon, defaultButton);
            frm.Close();
 
            return result;
        }
 
        class MessageForm : Form
        {
            IntPtr _handle;
            MessageBoxButtons _buttons;
            string[] _buttonTitles = null;
 
            bool _watchForActivate = false;
 
            public bool WatchForActivate
            {
                get { return _watchForActivate; }
                set { _watchForActivate = value; }
            }
 
            public MessageForm(MessageBoxButtons buttons, string[] buttonTitles)
            {
                _buttons = buttons;
                _buttonTitles = buttonTitles;
 
                // Hide self form, and don't show self form in task bar.
                this.Text = "";
                this.StartPosition = FormStartPosition.CenterScreen;
                this.Location = new Point(-32000, -32000);
                this.ShowInTaskbar = false;
            }
 
            protected override void OnShown(EventArgs e)
            {
                base.OnShown(e);
                // Hide self form, don't show self form even in task list.
                NativeWin32API.SetWindowPos(this.Handle, IntPtr.Zero, 0, 0, 0, 0, 659);
            }
 
            protected override void WndProc(ref System.Windows.Forms.Message m)
            {
                if (_watchForActivate && m.Msg == 0x0006)
                {
                    _watchForActivate = false;
                    _handle = m.LParam;
                    CheckMsgbox();
                }
                base.WndProc(ref m);
            }
 
            private void CheckMsgbox()
            {
                if (_buttonTitles == null || _buttonTitles.Length == 0)
                    return;
 
                // Button title index
                int buttonTitleIndex = 0;
                // Get the handle of control in current window.
                IntPtr h = NativeWin32API.GetWindow(_handle, GW_CHILD);
 
                // Set those custom titles to the three buttons(Default title are: Yes, No and Cancle).
                while (h != IntPtr.Zero)
                {
                    if (NativeWin32API.GetWindowClassName(h).Equals("Button"))
                    {
                        if (_buttonTitles.Length > buttonTitleIndex)
                        {
                            // Changes the text of the specified window's title bar (if it has one). 
                            // If the specified window is a control, the text of the control is changed. 
                            // However, SetWindowText cannot change the text of a control in another application.
                            NativeWin32API.SetWindowText(h, _buttonTitles[buttonTitleIndex]);
 
                            buttonTitleIndex++;
                        }
                    }
 
                    // Get the handle of next control in current window.
                    h = NativeWin32API.GetWindow(h, GW_HWNDNEXT);
                }
            }
        }
 
 
        public const int GW_CHILD = 5;
        public const int GW_HWNDNEXT = 2;
 
        public class NativeWin32API
        {
            [DllImport("user32.dll", CharSet = CharSet.Auto)]
            public static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int Width, int Height, int flags);
            [DllImport("user32.dll")]
            public static extern IntPtr GetWindow(IntPtr hWnd, Int32 wCmd);
            [DllImport("user32.dll")]
            public static extern bool SetWindowText(IntPtr hWnd, string lpString);
            [DllImport("user32.dll")]
            public static extern int GetClassNameW(IntPtr hWnd, [MarshalAs(UnmanagedType.LPWStr)]StringBuilder lpString, int nMaxCount);
 
            public static string GetWindowClassName(IntPtr handle)
            {
                StringBuilder sb = new StringBuilder(256);
 
                // Retrieves the name of the class to which the specified window belongs
                GetClassNameW(handle, sb, sb.Capacity);
                return sb.ToString();
            }
        }
 
    }
 
}

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