win32api.cs

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

namespace feiyun0112.cnblogs.com.CSDNReader.Functions
{
    
    public static class Win32API
    {
        public const int EM_SETSEL = 0xb1;
        public const int LVIS_FOCUSED = 1;
        public const int LVIS_SELECTED = 2;
        public const int LVM_FIRST = 0x1000;
        public const int LVM_GETITEM = 0x1005;
        public const int LVM_SETITEM = 0x1006;
        public const int LVM_SETITEMSTATE = 0x102b;
        public const int LVM_SUBITEMHITTEST = 0x1039;
        public const int SB_LINEDOWN = 1;
        public const int SB_LINEUP = 0;
        public const int SC_RESTORE = 0xf120;
        public const int SW_RESTORE = 9;
        public const int WM_COPYDATA = 0x4a;
        public const int WM_KEYDOWN = 0x100;
        public const int WM_KEYUP = 0x101;
        public const int WM_LBUTTONDBLCLK = 0x203;
        public const int WM_LBUTTONDOWN = 0x201;
        public const int WM_LBUTTONUP = 0x202;
        public const int WM_MBUTTONDBLCLK = 0x209;
        public const int WM_MBUTTONDOWN = 0x207;
        public const int WM_MBUTTONUP = 520;
        public const int WM_MOUSEWHEEL = 0x20a;
        public const int WM_QUERYENDSESSION = 0x11;
        public const int WM_RBUTTONDBLCLK = 0x206;
        public const int WM_RBUTTONDOWN = 0x204;
        public const int WM_RBUTTONUP = 0x205;
        public const int WM_SYSCOMMAND = 0x112;
        public const int WM_VSCROLL = 0x115;
        [StructLayout(LayoutKind.Sequential)]
        public struct COPYDATASTRUCT
        {
            public IntPtr dwData;
            public int cbData;
            public IntPtr lpData;
        }
        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
        internal struct POINT
        {
            public int x;
            public int y;
        }
        public enum ListViewItemFlags
        {
            LVIF_IMAGE = 2,
            LVIF_INDENT = 0x10,
            LVIF_NORECOMPUTE = 0x800,
            LVIF_PARAM = 4,
            LVIF_STATE = 8,
            LVIF_TEXT = 1
        }
        public enum ListViewHitTestFlags
        {
            LVHT_NOWHERE = 1,
            LVHT_ONITEMICON = 2,
            LVHT_ONITEMLABEL = 4,
            LVHT_ONITEMSTATEICON = 8
        }
        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
        internal struct LV_HITTESTINFO
        {
            public POINT pt;
            public ListViewHitTestFlags flags;
            public int iItem;
            public int iSubItem;
        }

        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
        internal struct LV_ITEM
        {
            public ListViewItemFlags mask;
            public int iItem;
            public int iSubItem;
            public uint state;
            public uint stateMask;
            public IntPtr pszText;
            public int cchTextMax;
            public int iImage;
            public int lParam;
            public int iIndent;
        }

      
        [DllImport("User32.dll")]
        public static extern IntPtr GetFocus();
        public static int GetListViewItemIndent(ListView listView, int itemIndex)
        {
            LV_ITEM lvi = new LV_ITEM();
            lvi.iItem = itemIndex;
            lvi.mask = ListViewItemFlags.LVIF_INDENT;
            SendMessage(listView.Handle, 0x1005, 0, ref lvi);
            return lvi.iIndent;
        }

        [DllImport("User32.dll")]
        public static extern IntPtr GetWindow(IntPtr hWnd, IntPtr wCmd);
        [DllImport("wininet.dll")]
        public static extern bool InternetGetConnectedState(out int flags, int reserved);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern bool IsIconic(IntPtr hWnd);
        [DllImport("sensapi.dll")]
        public static extern bool IsNetworkAlive(out int flags);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int PostMessage(IntPtr hWnd, int wMsg, int wParam, int lParam);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        internal static extern int SendMessage(IntPtr hWnd, int wMsg, int wParam, ref COPYDATASTRUCT lParam);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        internal static extern int SendMessage(IntPtr hWnd, int wMsg, int wParam, ref LV_HITTESTINFO lParam);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        internal static extern int SendMessage(IntPtr hWnd, int wMsg, int wParam, ref LV_ITEM lParam);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int SendMessage(IntPtr hWnd, int wMsg, int wParam, int lParam);
        [DllImport("User32.dll")]
        public static extern IntPtr SetFocus(IntPtr hWnd);
        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern bool SetForegroundWindow(IntPtr hWnd);
        public static void SetListViewItemIndent(ListView listView, int itemIndex, int level)
        {
            LV_ITEM lvi = new LV_ITEM();
            lvi.iItem = itemIndex;
            lvi.iIndent = level;
            lvi.mask = ListViewItemFlags.LVIF_INDENT;
            SendMessage(listView.Handle, 0x1006, 0, ref lvi);
        }

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);
    }
}