#region

using System;
using System.Runtime.InteropServices;
using System.Text;

#endregion

namespace CSFrameworkV5.Common
{
    /// <summary>
    ///     WinAPI函数库
    /// </summary>
    public class WinAPI
    {
        /// <summary>
        ///     枚举窗体的回调函数
        /// </summary>
        /// <param name="hWnd"></param>
        /// <param name="lParam"></param>
        /// <returns></returns>
        public delegate bool EnumWindowsProc(IntPtr hWnd, IntPtr lParam);

        public delegate bool WNDENUMPROC(IntPtr hwnd, uint lParam);

        public const int SW_SHOWNORMAL = 1;
        public const int SW_SHOWMINIMIZED = 2;
        public const int SW_SHOWMAXIMIZED = 3;
        public const int SW_SHOWNOACTIVATE = 4; //用最近的大小和位置显示一个窗口，同时不改变活动窗口
        public const int SW_SHOW = 5; //用当前的大小和位置显示一个窗口，同时令其进入活动状态
        public const int SW_MINIMIZE = 6; //最小化窗口，活动状态给令一个窗口
        public const int SW_SHOWMINNOACTIVE = 7; //最小化一个窗口，同时不改变活动窗口
        public const int SW_SHOWNA = 8; //用当前的大小和位置显示一个窗口，不改变活动窗口
        public const int SW_RESTORE = 9; //与 SW_SHOWNORMAL   1 相同
        public const int SW_SHOWDEFAULT = 10;
        public const int SW_FORCEMINIMIZE = 11;
        public const int SW_MAX = 11;
        public const int WM_SYSCOMMAND = 0x112;
        public const int SC_MINIMIZE = 0xF020;
        public const int SC_MAXIMIZE = 0xF030;

        private const int SC_CLOSE = 0xF060;
        private const int MF_GRAYED = 0x1;

        public static void DisableCloseButton(IntPtr hwnd)
        {
            EnableMenuItem(GetSystemMenu(hwnd, false), SC_CLOSE, MF_GRAYED);
        }

        [DllImport("user32.dll")]
        private static extern int EnableMenuItem(IntPtr hMenu,
            int wIDEnableItem, int wEnable);

        [DllImport("user32.dll", EntryPoint = "EnumWindows",
            SetLastError = true)]
        public static extern bool EnumWindows(WNDENUMPROC lpEnumFunc,
            uint lParam);

        [DllImport("user32")]
        public static extern int EnumWindows(EnumWindowsProc hWnd,
            IntPtr lParam);
        //使用：PostMessage(Handle, WM_SYSCOMMAND, SC_MINIMIZE, 0);

        [DllImport("User32.dll ")]
        public static extern IntPtr FindWindowEx(IntPtr parent, IntPtr childe,
            string strclass, string strname);

        [DllImport("user32.dll", EntryPoint = "GetParent", SetLastError = true)]
        public static extern IntPtr GetParent(IntPtr hWnd);

        [DllImport("user32.dll")]
        private static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert);

        [DllImport("user32", SetLastError = true)]
        public static extern int GetWindowText(
            IntPtr hWnd, //窗口句柄 
            StringBuilder lpString, //标题 
            int nMaxCount //最大值 
        );

        [DllImport("user32.dll", EntryPoint = "GetWindowThreadProcessId")]
        public static extern uint GetWindowThreadProcessId(IntPtr hWnd,
            ref uint lpdwProcessId);

        [DllImport("user32.dll", EntryPoint = "IsWindow")]
        public static extern bool IsWindow(IntPtr hWnd);

        [DllImport("user32.dll", EntryPoint = "PostMessage")]
        public static extern int PostMessage(IntPtr hwnd, int wMsg, int wParam,
            int lParam);

        public static void RestoreWindow(IntPtr hwnd)
        {
            ShowWindow(hwnd, SW_RESTORE);
        }

        [DllImport("user32", EntryPoint = "SetActiveWindow")]
        public static extern int SetActiveWindow(int hwnd);

        [DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
        public static extern bool
            SetForegroundWindow(IntPtr hWnd); //WINAPI 设置当前活动窗体的句柄

        [DllImport("kernel32.dll", EntryPoint = "SetLastError")]
        public static extern void SetLastError(uint dwErrCode);
        //使用：IntPtr p=FindWindowEx(System.IntPtr.Zero,System.IntPtr.Zero,null,"窗口标题"); 

        [DllImport("user32.dll", EntryPoint = "ShowWindow",
            CharSet = CharSet.Auto)]
        public static extern int ShowWindow(IntPtr hwnd, int nCmdShow);

        [DllImport("User32.dll")]
        public static extern bool ShowWindowAsync(IntPtr hWnd, int cmdShow);

        #region 窗体边框阴影效果变量申明

        public const int CS_DropSHADOW = 0x20000;
        public const int GCL_STYLE = -26;

        //声明Win32 API
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int SetClassLong(IntPtr hwnd, int nIndex,
            int dwNewLong);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int GetClassLong(IntPtr hwnd, int nIndex);

        #endregion
    }
}