Reorder code files
This commit is contained in:
229
UI/MessageBoxEx.cs
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229
UI/MessageBoxEx.cs
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using System;
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using System.Drawing;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Windows.Forms;
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namespace CsvView.UI
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{
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public class MessageBoxEx
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{
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private static IWin32Window _owner;
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private static HookProc _hookProc;
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private static IntPtr _hHook;
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public static DialogResult Show(string text)
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{
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Initialize();
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return MessageBox.Show(text);
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}
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public static DialogResult Show(string text, string caption)
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{
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Initialize();
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return MessageBox.Show(text, caption);
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}
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public static DialogResult Show(string text, string caption, MessageBoxButtons buttons)
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{
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Initialize();
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return MessageBox.Show(text, caption, buttons);
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}
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public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon)
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{
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Initialize();
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return MessageBox.Show(text, caption, buttons, icon);
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}
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public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton)
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{
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Initialize();
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return MessageBox.Show(text, caption, buttons, icon, defButton);
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}
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public static DialogResult Show(string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton, MessageBoxOptions options)
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{
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Initialize();
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return MessageBox.Show(text, caption, buttons, icon, defButton, options);
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}
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public static DialogResult Show(IWin32Window owner, string text)
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{
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_owner = owner;
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Initialize();
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return MessageBox.Show(owner, text);
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}
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public static DialogResult Show(IWin32Window owner, string text, string caption)
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{
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_owner = owner;
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Initialize();
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return MessageBox.Show(owner, text, caption);
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}
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public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons)
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{
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_owner = owner;
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Initialize();
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return MessageBox.Show(owner, text, caption, buttons);
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}
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public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon)
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{
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_owner = owner;
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Initialize();
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return MessageBox.Show(owner, text, caption, buttons, icon);
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}
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public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton)
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{
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_owner = owner;
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Initialize();
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return MessageBox.Show(owner, text, caption, buttons, icon, defButton);
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}
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public static DialogResult Show(IWin32Window owner, string text, string caption, MessageBoxButtons buttons, MessageBoxIcon icon, MessageBoxDefaultButton defButton, MessageBoxOptions options)
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{
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_owner = owner;
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Initialize();
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return MessageBox.Show(owner, text, caption, buttons, icon,
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defButton, options);
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}
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public delegate IntPtr HookProc(int nCode, IntPtr wParam, IntPtr lParam);
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public delegate void TimerProc(IntPtr hWnd, uint uMsg, UIntPtr nIDEvent, uint dwTime);
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public const int WH_CALLWNDPROCRET = 12;
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public enum CbtHookAction : int
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{
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HCBT_MOVESIZE = 0,
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HCBT_MINMAX = 1,
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HCBT_QS = 2,
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HCBT_CREATEWND = 3,
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HCBT_DESTROYWND = 4,
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HCBT_ACTIVATE = 5,
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HCBT_CLICKSKIPPED = 6,
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HCBT_KEYSKIPPED = 7,
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HCBT_SYSCOMMAND = 8,
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HCBT_SETFOCUS = 9
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}
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[DllImport("kernel32.dll")]
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private static extern uint GetCurrentThreadId();
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[DllImport("user32.dll")]
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private static extern bool GetWindowRect(IntPtr hWnd, ref Rectangle lpRect);
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[DllImport("user32.dll")]
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private static extern int MoveWindow(IntPtr hWnd, int X, int Y, int nWidth, int nHeight, bool bRepaint);
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[DllImport("User32.dll")]
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public static extern UIntPtr SetTimer(IntPtr hWnd, UIntPtr nIDEvent, uint uElapse, TimerProc lpTimerFunc);
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[DllImport("User32.dll")]
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public static extern IntPtr SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, IntPtr lParam);
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[DllImport("user32.dll")]
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public static extern IntPtr SetWindowsHookEx(int idHook, HookProc lpfn, IntPtr hInstance, int threadId);
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[DllImport("user32.dll")]
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public static extern int UnhookWindowsHookEx(IntPtr idHook);
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[DllImport("user32.dll")]
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public static extern IntPtr CallNextHookEx(IntPtr idHook, int nCode, IntPtr wParam, IntPtr lParam);
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[DllImport("user32.dll")]
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public static extern int GetWindowTextLength(IntPtr hWnd);
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[DllImport("user32.dll")]
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public static extern int GetWindowText(IntPtr hWnd, StringBuilder text, int maxLength);
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[DllImport("user32.dll")]
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public static extern int EndDialog(IntPtr hDlg, IntPtr nResult);
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[StructLayout(LayoutKind.Sequential)]
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public struct CWPRETSTRUCT
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{
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public IntPtr lResult;
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public IntPtr lParam;
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public IntPtr wParam;
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public uint message;
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public IntPtr hwnd;
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};
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static MessageBoxEx()
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{
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_hookProc = new HookProc(MessageBoxHookProc);
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_hHook = IntPtr.Zero;
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}
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private static void Initialize()
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{
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if (_hHook != IntPtr.Zero)
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{
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throw new NotSupportedException("multiple calls are not supported");
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}
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if (_owner != null)
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{
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_hHook = SetWindowsHookEx(WH_CALLWNDPROCRET, _hookProc, IntPtr.Zero, (int)GetCurrentThreadId());
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}
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}
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private static IntPtr MessageBoxHookProc(int nCode, IntPtr wParam, IntPtr lParam)
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{
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if (nCode < 0)
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{
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return CallNextHookEx(_hHook, nCode, wParam, lParam);
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}
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CWPRETSTRUCT msg = (CWPRETSTRUCT)Marshal.PtrToStructure(lParam, typeof(CWPRETSTRUCT));
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IntPtr hook = _hHook;
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if (msg.message == (int)CbtHookAction.HCBT_ACTIVATE)
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{
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try
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{
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CenterWindow(msg.hwnd);
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}
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finally
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{
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UnhookWindowsHookEx(_hHook);
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_hHook = IntPtr.Zero;
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}
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}
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return CallNextHookEx(hook, nCode, wParam, lParam);
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}
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private static void CenterWindow(IntPtr hChildWnd)
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{
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Rectangle recChild = new Rectangle(0, 0, 0, 0);
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bool success = GetWindowRect(hChildWnd, ref recChild);
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int width = recChild.Width - recChild.X;
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int height = recChild.Height - recChild.Y;
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Rectangle recParent = new Rectangle(0, 0, 0, 0);
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success = GetWindowRect(_owner.Handle, ref recParent);
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Point ptCenter = new Point(0, 0);
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ptCenter.X = recParent.X + ((recParent.Width - recParent.X) / 2);
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ptCenter.Y = recParent.Y + ((recParent.Height - recParent.Y) / 2);
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Point ptStart = new Point(0, 0);
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ptStart.X = (ptCenter.X - (width / 2));
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ptStart.Y = (ptCenter.Y - (height / 2));
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ptStart.X = (ptStart.X < 0) ? 0 : ptStart.X;
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ptStart.Y = (ptStart.Y < 0) ? 0 : ptStart.Y;
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int result = MoveWindow(hChildWnd, ptStart.X, ptStart.Y, width,
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height, false);
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}
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}
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}
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