CsvView/UI/MessageBoxEx.cs

using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace CsvView.UI
{
    public static class MessageBoxEx
    {
        private static IWin32Window _owner;

        public static DialogResult Show(string text)
        {
            Initialize();
            return MessageBox.Show(text);
        }

        public static DialogResult Show(string text, string caption)
        {
            Initialize();
            return MessageBox.Show(text, caption);
        }

        public static DialogResult Show(string text, string caption, MessageBoxButtons buttons)
        {
            Initialize();
            return MessageBox.Show(text, caption, buttons);
        }

        public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon)
        {
            Initialize();
            return MessageBox.Show(text, caption, buttons, icon);
        }

        public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton)
        {
            Initialize();
            return MessageBox.Show(text, caption, buttons, icon, defButton);
        }

        public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton, MessageBoxOptions options)
        {
            Initialize();
            return MessageBox.Show(text, caption, buttons, icon, defButton, options);
        }

        public static DialogResult Show(IWin32Window owner, string text)
        {
            _owner = owner;
            Initialize();
            return MessageBox.Show(owner, text);
        }

        public static DialogResult Show(IWin32Window owner, string text, string caption)
        {
            _owner = owner;
            Initialize();
            return MessageBox.Show(owner, text, caption);
        }

        public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons)
        {
            _owner = owner;
            Initialize();
            return MessageBox.Show(owner, text, caption, buttons);
        }

        public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon)
        {
            _owner = owner;
            Initialize();
            return MessageBox.Show(owner, text, caption, buttons, icon);
        }

        public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton)
        {
            _owner = owner;
            Initialize();
            return MessageBox.Show(owner, text, caption, buttons, icon, defButton);
        }

        public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton, MessageBoxOptions options)
        {
            _owner = owner;
            Initialize();
            return MessageBox.Show(owner, text, caption, buttons, icon,
                                   defButton, options);
        }
        
        [DllImport("user32.dll")]
        private static extern bool GetWindowRect(IntPtr hWnd, ref Rectangle lpRect);

        [DllImport("user32.dll")]
        private static extern int MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint);

        private static void Initialize()
        {

        }
        
        private static void CenterWindow(IntPtr hChildWnd)
        {
            Rectangle recChild = new Rectangle(0, 0, 0, 0);
			GetWindowRect(hChildWnd, ref recChild);

            int width = recChild.Width - recChild.X;
            int height = recChild.Height - recChild.Y;

            Rectangle recParent = new Rectangle(0, 0, 0, 0);
			GetWindowRect(_owner.Handle, ref recParent);

            Point ptCenter = new Point(0, 0);
            ptCenter.X = recParent.X + ((recParent.Width - recParent.X) / 2);
            ptCenter.Y = recParent.Y + ((recParent.Height - recParent.Y) / 2);


            Point ptStart = new Point(0, 0);
            ptStart.X = (ptCenter.X - (width / 2));
            ptStart.Y = (ptCenter.Y - (height / 2));

            ptStart.X = (ptStart.X < 0) ? 0 : ptStart.X;
            ptStart.Y = (ptStart.Y < 0) ? 0 : ptStart.Y;

			MoveWindow(hChildWnd, ptStart.X, ptStart.Y, width, height, false);
        }

    }
}