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   源码介绍

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自定义OpenFileDialog

//  Copyright (c) 2006, Gustavo Franco
//  Email:  gustavo_franco@hotmail.com
//  All rights reserved.

//  Redistribution and use in source and binary forms, with or without modification, 
//  are permitted provided that the following conditions are met:

//  Redistributions of source code must retain the above copyright notice, 
//  this list of conditions and the following disclaimer. 
//  Redistributions in binary form must reproduce the above copyright notice, 
//  this list of conditions and the following disclaimer in the documentation 
//  and/or other materials provided with the distribution. 

//  THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
//  KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
//  IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
//  PURPOSE. IT CAN BE DISTRIBUTED FREE OF CHARGE AS LONG AS THIS HEADER 
//  REMAINS UNCHANGED.

using System;
using System.Text;
using System.Collections.Generic;
using System.Runtime.InteropServices;

namespace CustomControls.OS
{
    [Author("Franco, Gustavo")]
    public static class Win32
    {
        #region Delegates
        public delegate bool EnumWindowsCallBack(IntPtr hWnd, int lParam);
        #endregion

        #region USER32
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
        public static extern IntPtr GetParent(IntPtr hWnd);
		[DllImport("User32.Dll")]
        public static extern int GetDlgCtrlID(IntPtr hWndCtl);
        [DllImport("user32.dll", CharSet=CharSet.Auto, ExactSpelling=true)]
        public static extern int MapWindowPoints(IntPtr hWnd, IntPtr hWndTo, ref POINT pt, int cPoints);
        [DllImport("user32.dll", SetLastError = true)]
        public static extern bool GetWindowInfo(IntPtr hwnd, out WINDOWINFO pwi);
		[DllImport("User32.Dll")]
		public static extern void GetWindowText(IntPtr hWnd, StringBuilder param, int length);
		[DllImport("User32.Dll")]
		public static extern void GetClassName(IntPtr hWnd, StringBuilder param, int length);
        [DllImport("user32.Dll")]
        public static extern bool EnumChildWindows(IntPtr hWndParent, EnumWindowsCallBack lpEnumFunc, int lParam); 
        [DllImport("user32.Dll")]
        public static extern bool EnumWindows(EnumWindowsCallBack lpEnumFunc, int lParam); 
        [DllImport("User32.dll", CharSet=CharSet.Auto)]
		public static extern bool ReleaseCapture();
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern IntPtr SetCapture(IntPtr hWnd);
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern IntPtr ChildWindowFromPointEx(IntPtr hParent, POINT pt, ChildFromPointFlags flags);
		[DllImport("user32.dll", EntryPoint="FindWindowExA", CallingConvention=CallingConvention.StdCall,CharSet=CharSet.Ansi)] 
		public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
        [DllImport("user32.dll")]
        public static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern int PostMessage(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern int PostMessage(IntPtr hWnd, int msg, int wParam, int lParam);
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern int SendMessage(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern int SendMessage(IntPtr hWnd, int msg, int wParam, int lParam);
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern int SendMessage(IntPtr hWnd, int msg, int wParam, StringBuilder param);
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern int SendMessage(IntPtr hWnd, int msg, int wParam, char[] chars);
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern IntPtr BeginDeferWindowPos(int nNumWindows);
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern IntPtr DeferWindowPos(IntPtr hWinPosInfo, IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int Width, int Height, SetWindowPosFlags flags);
        [DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern bool EndDeferWindowPos(IntPtr hWinPosInfo);
		[DllImport("user32.dll", CharSet=CharSet.Auto)]
		public static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int x, int y, int Width, int Height, SetWindowPosFlags flags);
        [DllImport("user32.dll")]
        public static extern bool GetWindowRect(IntPtr hwnd, ref RECT rect);
        [DllImport("user32.dll")]
        public static extern bool GetClientRect(IntPtr hwnd, ref RECT rect);
        #endregion
    }
}