WinApi.cs

using System;
using System.Text;
using System.Windows.Forms;
using System.Drawing;
using System.Runtime.InteropServices;
using Accessibility;需要引用中添加 Accessibility
using mshtml; 需要引用中添加 Microsoft.mshtml

namespace ConsoleApp
{
public sealed class WinApi
{
//Not allow to create instance

private WinApi()
{

}

public const uint MAX_PATH = 260;

#region Hooks - user32.dll

/// <summary>
/// Defines the layout of the MouseHookStruct
/// </summary>
[StructLayout(LayoutKind.Sequential)]
public struct MSLLHOOKSTRUCT
{
public Point Point;
public int MouseData;
public int Flags;
public int Time;
public int ExtraInfo;
}

[StructLayout(LayoutKind.Sequential)]
public struct POINT
{
public int x;
public int y;
}

[StructLayout(LayoutKind.Sequential)]
public struct MouseHookStruct
{
/// <summary>
/// Specifies a POINT structure that contains the x- and y-coordinates of the cursor, in screen coordinates.
/// </summary>
public POINT Point;

public UInt32 MouseData;
public UInt32 Flags;
public UInt32 Time;
public UInt32 ExtraInfo;
}

/// <summary>
/// &frac14;ü&Aring;&Igrave;&sup1;&sup3;×&Oacute;&Ecirc;&Acirc;&frac14;&thorn;&frac12;á&sup1;&sup1;&para;¨&Ograve;&aring;
/// </summary>
/// <remarks>&Iuml;ê&Iuml;&cedil;&Euml;&micro;&Atilde;÷&Ccedil;&euml;&sup2;&Icirc;&iquest;&frac14;MSDN&Ouml;&ETH;&sup1;&Oslash;&Oacute;&Uacute; KBDLLHOOKSTRUCT &micro;&Auml;&Euml;&micro;&Atilde;÷</remarks>
[StructLayout(LayoutKind.Sequential)]
public struct KeyboardHookStruct
{
/// <summary>
/// Specifies a virtual-key code. The code must be a value in the range 1 to 254.
/// </summary>
public UInt32 VKCode;

/// <summary>
/// Specifies a hardware scan code for the key.
/// </summary>
public UInt32 ScanCode;

/// <summary>
/// Specifies the extended-key flag, event-injected flag, context code,
/// and transition-state flag. This member is specified as follows.
/// An application can use the following values to test the keystroke flags.
/// </summary>
public UInt32 Flags;

/// <summary>
/// Specifies the time stamp for this message.
/// </summary>
public UInt32 Time;

/// <summary>
/// Specifies extra information associated with the message.
/// </summary>
public UInt32 ExtraInfo;
}

/// <summary>
/// EventArgs class for use as parameters by HookEventHandler delegates
/// </summary>
public class HookEventArgs : EventArgs
{
private int _code;
private IntPtr _wParam;
private IntPtr _lParam;

/// <summary>
/// Initializes a new instance of the HookEventArgs class
/// </summary>
/// <param name="code">the hook code</param>
/// <param name="wParam">hook specific information</param>
/// <param name="lParam">hook specific information</param>
public HookEventArgs(int code, IntPtr wParam, IntPtr lParam)
{
_code = code;
_wParam = wParam;
_lParam = lParam;
}

/// <summary>
/// The hook code
/// </summary>
public int Code
{
get
{
return _code;
}
}

/// <summary>
/// A pointer to data
/// </summary>
public IntPtr wParam
{
get
{
return _wParam;
}
}

/// <summary>
/// A pointer to data
/// </summary>
public IntPtr lParam
{
get
{
return _lParam;
}
}
}

/// <summary>
/// Event delegate for use with the HookEventArgs class
/// </summary>
public delegate void HookEventHandler(object sender, HookEventArgs e);

/// <summary>
/// Defines the various types of hooks that are available in Windows
/// </summary>
public enum HookTypes : int
{
WH_JOURNALRECORD = 0,
WH_JOURNALPLAYBACK = 1,
WH_KEYBOARD = 2,
WH_GETMESSAGE = 3,
WH_CALLWNDPROC = 4,
WH_CBT = 5,
WH_SYSMSGFILTER = 6,
WH_MOUSE = 7,
WH_HARDWARE = 8,
WH_DEBUG = 9,
WH_SHELL = 10,
WH_FOREGROUNDIDLE = 11,
WH_CALLWNDPROCRET = 12,
WH_KEYBOARD_LL = 13,
WH_MOUSE_LL = 14
}

public enum ShellHookMessages
{
HSHELL_WINDOWCREATED = 1,
HSHELL_WINDOWDESTROYED = 2,
HSHELL_ACTIVATESHELLWINDOW = 3,
HSHELL_WINDOWACTIVATED = 4,
HSHELL_GETMINRECT = 5,
HSHELL_REDRAW = 6,
HSHELL_TASKMAN = 7,
HSHELL_LANGUAGE = 8,
HSHELL_ACCESSIBILITYSTATE = 11
}
public enum WM_MOUSE : int
{
/// <summary>
/// &Ecirc;ó±ê&iquest;&ordf;&Ecirc;&frac14;
/// </summary>
WM_MOUSEFIRST = 0x200,

/// <summary>
/// &Ecirc;ó±ê&Ograve;&AElig;&para;&macr;
/// </summary>
WM_MOUSEMOVE = 0x200,

/// <summary>
/// ×ó&frac14;ü°&acute;&Iuml;&Acirc;
/// </summary>
WM_LBUTTONDOWN = 0x201,

/// <summary>
/// ×ó&frac14;ü&Ecirc;&Iacute;·&Aring;
/// </summary>
WM_LBUTTONUP = 0x202,

/// <summary>
/// ×ó&frac14;ü&Euml;&laquo;&raquo;÷
/// </summary>
WM_LBUTTONDBLCLK = 0x203,

/// <summary>
/// &Oacute;&Ograve;&frac14;ü°&acute;&Iuml;&Acirc;
/// </summary>
WM_RBUTTONDOWN = 0x204,

/// <summary>
/// &Oacute;&Ograve;&frac14;ü&Ecirc;&Iacute;·&Aring;
/// </summary>
WM_RBUTTONUP = 0x205,

/// <summary>
/// &Oacute;&Ograve;&frac14;ü&Euml;&laquo;&raquo;÷
/// </summary>
WM_RBUTTONDBLCLK = 0x206,

/// <summary>
/// &Ouml;&ETH;&frac14;ü°&acute;&Iuml;&Acirc;
/// </summary>
WM_MBUTTONDOWN = 0x207,

/// <summary>
/// &Ouml;&ETH;&frac14;ü&Ecirc;&Iacute;·&Aring;
/// </summary>
WM_MBUTTONUP = 0x208,

/// <summary>
/// &Ouml;&ETH;&frac14;ü&Euml;&laquo;&raquo;÷
/// </summary>
WM_MBUTTONDBLCLK = 0x209,

/// <summary>
/// &sup1;&ouml;&Acirc;&Ouml;&sup1;&ouml;&para;&macr;
/// </summary>
/// <remarks>WINNT4.0&Ograve;&Ocirc;&Eacute;&Iuml;&sup2;&Aring;&Ouml;§&sup3;&Ouml;&acute;&Euml;&Iuml;&ucirc;&Iuml;&cent;</remarks>
WM_MOUSEWHEEL = 0x020A
}

//message for list box
public enum LISTBOXMSG : int
{
LB_ADDSTRING = 0x0180,
LB_INSERTSTRING = 0x0181,
LB_DELETESTRING = 0x0182,
LB_SELITEMRANGEEX = 0x0183,
LB_RESETCONTENT = 0x0184,
LB_SETSEL = 0x0185,
LB_SETCURSEL = 0x0186,
LB_GETSEL = 0x0187,
LB_GETCURSEL = 0x0188,
LB_GETTEXT = 0x0189,
LB_GETTEXTLEN = 0x018A,
LB_GETCOUNT = 0x018B,
LB_SELECTSTRING = 0x018C,
LB_DIR = 0x018D,
LB_GETTOPINDEX = 0x018E,
LB_FINDSTRING = 0x018F,
LB_GETSELCOUNT = 0x0190,
LB_GETSELITEMS = 0x0191,
LB_SETTABSTOPS = 0x0192,
LB_GETHORIZONTALEXTENT = 0x0193,
LB_SETHORIZONTALEXTENT = 0x0194,
LB_SETCOLUMNWIDTH = 0x0195,
LB_ADDFILE = 0x0196,
LB_SETTOPINDEX = 0x0197,
LB_GETITEMRECT = 0x0198,
LB_GETITEMDATA = 0x0199,
LB_SETITEMDATA = 0x019A,
LB_SELITEMRANGE = 0x019B,
LB_SETANCHORINDEX = 0x019C,
LB_GETANCHORINDEX = 0x019D,
LB_SETCARETINDEX = 0x019E,
LB_GETCARETINDEX = 0x019F,
LB_SETITEMHEIGHT = 0x01A0,
LB_GETITEMHEIGHT = 0x01A1,
LB_FINDSTRINGEXACT = 0x01A2,
LB_SETLOCALE = 0x01A5,
LB_GETLOCALE = 0x01A6,
LB_SETCOUNT = 0x01A7,
}

//message for combo box.
public enum COMBOBOXMSG : int
{
CB_OKAY = 0,
CB_ERR = (-1),
CB_ERRSPACE = (-2),
CBN_ERRSPACE = (-1),
CBN_SELCHANGE = 1,
CBN_DBLCLK = 2,
CBN_SETFOCUS = 3,
CBN_KILLFOCUS = 4,
CBN_EDITCHANGE = 5,
CBN_EDITUPDATE = 6,
CBN_DROPDOWN = 7,
CBN_CLOSEUP = 8,
CBN_SELENDOK = 9,
CBN_SELENDCANCEL = 10,
CBS_SIMPLE = 0x0001,
CBS_DROPDOWN = 0x0002,
CBS_DROPDOWNLIST = 0x0003,
CBS_OWNERDRAWFIXED = 0x0010,
CBS_OWNERDRAWVARIABLE = 0x0020,
CBS_AUTOHSCROLL = 0x0040,
CBS_OEMCONVERT = 0x0080,
CBS_SORT = 0x0100,
CBS_HASSTRINGS = 0x0200,
CBS_NOINTEGRALHEIGHT = 0x0400,
CBS_DISABLENOSCROLL = 0x0800,
CBS_UPPERCASE = 0x2000,
CBS_LOWERCASE = 0x4000,
CB_GETEDITSEL = 0x0140,
CB_LIMITTEXT = 0x0141,
CB_SETEDITSEL = 0x0142,
CB_ADDSTRING = 0x0143,
CB_DELETESTRING = 0x0144,
CB_DIR = 0x0145,
CB_GETCOUNT = 0x0146,
CB_GETCURSEL = 0x0147,
CB_GETLBTEXT = 0x0148,
CB_GETLBTEXTLEN = 0x0149,
CB_INSERTSTRING = 0x014A,
CB_RESETCONTENT = 0x014B,
CB_FINDSTRING = 0x014C,
CB_SELECTSTRING = 0x014D,
CB_SETCURSEL = 0x014E,
CB_SHOWDROPDOWN = 0x014F,
CB_GETITEMDATA = 0x0150,
CB_SETITEMDATA = 0x0151,
CB_GETDROPPEDCONTROLRECT = 0x0152,
CB_SETITEMHEIGHT = 0x0153,
CB_GETITEMHEIGHT = 0x0154,
CB_SETEXTENDEDUI = 0x0155,
CB_GETEXTENDEDUI = 0x0156,
CB_GETDROPPEDSTATE = 0x0157,
CB_FINDSTRINGEXACT = 0x0158,
CB_SETLOCALE = 0x0159,
CB_GETLOCALE = 0x015A,
CB_GETTOPINDEX = 0x015b,
CB_SETTOPINDEX = 0x015c,
CB_GETHORIZONTALEXTENT = 0x015d,
CB_SETHORIZONTALEXTENT = 0x015e,
CB_GETDROPPEDWIDTH = 0x015f,
CB_SETDROPPEDWIDTH = 0x0160,
CB_INITSTORAGE = 0x0161,
CB_MSGMAX = 0x0162,
}

//virtual keys
public enum VKCodes : int
{
VK_BACK = 0x08,
VK_TAB = 0x09,

VK_CLEAR = 0x0C,
VK_RETURN = 0x0D,

VK_SHIFT = 0x10,
VK_CONTROL = 0x11,
VK_MENU = 0x12,
VK_PAUSE = 0x13,
VK_CAPITAL = 0x14,

VK_KANA = 0x15,
VK_HANGEUL = 0x15,
VK_HANGUL = 0x15,
VK_JUNJA = 0x17,
VK_FINAL = 0x18,
VK_HANJA = 0x19,
VK_KANJI = 0x19,

VK_ESCAPE = 0x1B,

VK_CONVERT = 0x1C,
VK_NONCONVERT = 0x1D,
VK_ACCEPT = 0x1E,
VK_MODECHANGE = 0x1F,

VK_SPACE = 0x20,
VK_PRIOR = 0x21,
VK_NEXT = 0x22,
VK_END = 0x23,
VK_HOME = 0x24,
VK_LEFT = 0x25,
VK_UP = 0x26,
VK_RIGHT = 0x27,
VK_DOWN = 0x28,
VK_SELECT = 0x29,
VK_PRINT = 0x2A,
VK_EXECUTE = 0x2B,
VK_SNAPSHOT = 0x2C,
VK_INSERT = 0x2D,
VK_DELETE = 0x2E,
VK_HELP = 0x2F,

VK_LWIN = 0x5B,
VK_RWIN = 0x5C,
VK_APPS = 0x5D,

VK_SLEEP = 0x5F,
VK_NUMLOCK = 90,
VK_NUMPAD0 = 0x60,
VK_NUMPAD1 = 0x61,
VK_NUMPAD2 = 0x62,
VK_NUMPAD3 = 0x63,
VK_NUMPAD4 = 0x64,
VK_NUMPAD5 = 0x65,
VK_NUMPAD6 = 0x66,
VK_NUMPAD7 = 0x67,
VK_NUMPAD8 = 0x68,
VK_NUMPAD9 = 0x69,
VK_MULTIPLY = 0x6A,
VK_ADD = 0x6B,
VK_SEPARATOR = 0x6C,
VK_SUBTRACT = 0x6D,
VK_DECIMAL = 0x6E,
VK_DIVIDE = 0x6F,
VK_F1 = 0x70,
VK_F2 = 0x71,
VK_F3 = 0x72,
VK_F4 = 0x73,
VK_F5 = 0x74,
VK_F6 = 0x75,
VK_F7 = 0x76,
VK_F8 = 0x77,
VK_F9 = 0x78,
VK_F10 = 0x79,
VK_F11 = 0x7A,
VK_F12 = 0x7B,
VK_F13 = 0x7C,
VK_F14 = 0x7D,
VK_F15 = 0x7E,
VK_F16 = 0x7F,
VK_F17 = 0x80,
VK_F18 = 0x81,
VK_F19 = 0x82,
VK_F20 = 0x83,
VK_F21 = 0x84,
VK_F22 = 0x85,
VK_F23 = 0x86,
VK_F24 = 0x87
}

public enum WM_KEYBOARD : int
{
/// <summary>
/// ·&Ccedil;&Iuml;&micro;&Iacute;&sup3;°&acute;&frac14;ü°&acute;&Iuml;&Acirc;
/// </summary>
WM_KEYDOWN = 0x100,

/// <summary>
/// ·&Ccedil;&Iuml;&micro;&Iacute;&sup3;°&acute;&frac14;ü&Ecirc;&Iacute;·&Aring;
/// </summary>
WM_KEYUP = 0x101,

/// <summary>
/// &Iuml;&micro;&Iacute;&sup3;°&acute;&frac14;ü°&acute;&Iuml;&Acirc;
/// </summary>
WM_SYSKEYDOWN = 0x104,

/// <summary>
/// &Iuml;&micro;&Iacute;&sup3;°&acute;&frac14;ü&Ecirc;&Iacute;·&Aring;
/// </summary>
WM_SYSKEYUP = 0x105
}
public delegate int HookProc(int nCode, Int32 wParam, IntPtr lParam);

[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall, SetLastError = true, EntryPoint = "SetWindowsHookEx")]
public static extern IntPtr SetWindowsHookEx(HookTypes hookType, HookProc hookProc, IntPtr hInstance, int nThreadId);

[DllImport("user32.dll")]
public static extern int UnhookWindowsHookEx(IntPtr hookHandle);

[DllImport("user32.dll")]
public static extern int CallNextHookEx(IntPtr hookHandle, int nCode, Int32 wParam, IntPtr lParam);

[DllImport("user32.dll")]
public static extern int RegisterShellHookWindow(IntPtr hWnd);

[DllImport("user32.dll")]
public static extern int DeregisterShellHookWindow(IntPtr hWnd);

[DllImport("user32.dll", EntryPoint = "LoadCursor")]
public static extern IntPtr LoadCursor(IntPtr hInstance, uint cursor);

[DllImport("user32.dll")]
public static extern IntPtr LoadCursorFromFile(string fileName);

[DllImport("user32.dll")]
public static extern IntPtr SetCursor(IntPtr cursorHandle);

[DllImport("user32.dll")]
public static extern uint DestroyCursor(IntPtr cursorHandle);

[DllImport("gdi32.dll")]
public static extern IntPtr SetROP2(IntPtr hdc, IntPtr fnDrawMode);

[DllImport("user32.dll")]
public static extern bool PtInRect(ref Rect lprc, POINT pt);

[DllImport("user32.dll")]
public static extern int ToAscii(UInt32 uVirtKey, UInt32 uScanCode,
byte[] lpbKeyState, byte[] lpwTransKey, UInt32 fuState);

[DllImport("user32.dll")]
public static extern int GetKeyboardState(byte[] pbKeyState);

#endregion Hooks

#region System - Kernel32.dll

[DllImport("kernel32.dll", EntryPoint = "GetLastError", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
public static extern Int32 GetLastError();

#endregion

#region Windows - user32.dll

public const int GWL_HWNDPARENT = (-8);
public const int GWL_EXSTYLE = (-20);
public const int GWL_STYLE = (-16);
public const int GCL_HICON = (-14);
public const int GCL_HICONSM = (-34);
public const int WM_QUERYDRAGICON = 0x37;
public const int WM_GETICON = 0x7F;
public const int WM_SETICON = 0x80;
public const int ICON_SMALL = 0;
public const int ICON_BIG = 1;
public const int SMTO_ABORTIFHUNG = 0x2;
public const int TRUE = 1;
public const int FALSE = 0;

public const int WHITE_BRUSH = 0;
public const int LTGRAY_BRUSH = 1;
public const int GRAY_BRUSH = 2;
public const int DKGRAY_BRUSH = 3;
public const int BLACK_BRUSH = 4;
public const int NULL_BRUSH = 5;
public const int HOLLOW_BRUSH = NULL_BRUSH;
public const int WHITE_PEN = 6;
public const int BLACK_PEN = 7;
public const int NULL_PEN = 8;
public const int OEM_FIXED_FONT = 10;
public const int ANSI_FIXED_FONT = 11;
public const int ANSI_VAR_FONT = 12;
public const int SYSTEM_FONT = 13;
public const int DEVICE_DEFAULT_FONT = 14;
public const int DEFAULT_PALETTE = 15;
public const int SYSTEM_FIXED_FONT = 16;

public const int RDW_INVALIDATE = 0x0001;
public const int RDW_INTERNALPAINT = 0x0002;
public const int RDW_ERASE = 0x0004;

public const int RDW_VALIDATE = 0x0008;
public const int RDW_NOINTERNALPAINT = 0x0010;
public const int RDW_NOERASE = 0x0020;

public const int RDW_NOCHILDREN = 0x0040;
public const int RDW_ALLCHILDREN = 0x0080;

public const int RDW_UPDATENOW = 0x0100;
public const int RDW_ERASENOW = 0x0200;

public const int RDW_FRAME = 0x0400;
public const int RDW_NOFRAME = 0x0800;

//enum to how to navigate in InternetExplorer.
public enum BrowserNavConstants
{
/// <summary>
/// Open the resource or file in a new window.
/// </summary>
navOpenInNewWindow = 0x1,
/// <summary>
/// Do not add the resource or file to the history list. The new page replaces the current page in the list.
/// </summary>
navNoHistory = 0x2,
/// <summary>
/// Do not consult the Internet cache; retrieve the resource from the origin server (implies BINDF_PRAGMA_NO_CACHE and BINDF_RESYNCHRONIZE).
/// </summary>
navNoReadFromCache = 0x4,
/// <summary>
/// Do not add the downloaded resource to the Internet cache. See BINDF_NOWRITECACHE.
/// </summary>
navNoWriteToCache = 0x8,
/// <summary>
/// If the navigation fails, the autosearch functionality attempts to navigate common root domains (.com, .edu, and so on). If this also fails, the URL is passed to a search engine.
/// </summary>
navAllowAutosearch = 0x10,
/// <summary>
/// Causes the current Explorer Bar to navigate to the given item, if possible.
/// </summary>
navBrowserBar = 0x20,
/// <summary>
/// Microsoft Internet Explorer 6 for Microsoft Windows XP Service Pack 2 (SP2) and later. If the navigation fails when a hyperlink is being followed, this constant specifies that the resource should then be bound to the moniker using the BINDF_HYPERLINK flag.
/// </summary>
navHyperlink = 0x40,
/// <summary>
/// Internet Explorer 6 for Windows XP SP2 and later. Force the URL into the restricted zone.
/// </summary>
navEnforceRestricted = 0x80,
/// <summary>
/// Internet Explorer 6 for Windows XP SP2 and later. Use the default Popup Manager to block pop-up windows.
/// </summary>
navNewWindowsManaged = 0x0100,
/// <summary>
/// Internet Explorer 6 for Windows XP SP2 and later. Block files that normally trigger a file download dialog box.
/// </summary>
navUntrustedForDownload = 0x0200,
/// <summary>
/// Internet Explorer 6 for Windows XP SP2 and later. Prompt for the installation of Microsoft ActiveX controls.
/// </summary>
navTrustedForActiveX = 0x0400,
/// <summary>
/// Windows Internet Explorer 7. Open the resource or file in a new tab. Allow the destination window to come to the foreground, if necessary.
/// </summary>
navOpenInNewTab = 0x0800,
/// <summary>
/// Internet Explorer 7. Open the resource or file in a new background tab; the currently active window and/or tab remains open on top.
/// </summary>
navOpenInBackgroundTab = 0x1000,
/// <summary>
/// Internet Explorer 7. Maintain state for dynamic navigation based on the filter string entered in the search band text box (wordwheel). Restore the wordwheel text when the navigation completes.
/// </summary>
navKeepWordWheelText = 0x2000
}

public enum ShowWindowCmds
{
SW_HIDE = 0,
SW_SHOWNORMAL = 1,
SW_NORMAL = 1,
SW_SHOWMINIMIZED = 2,
SW_SHOWMAXIMIZED = 3,
SW_MAXIMIZE = 3,
SW_SHOWNOACTIVATE = 4,
SW_SHOW = 5,
SW_MINIMIZE = 6,
SW_SHOWMINNOACTIVE = 7,
SW_SHOWNA = 8,
SW_RESTORE = 9,
SW_SHOWDEFAULT = 10,
SW_FORCEMINIMIZE = 11,
SW_MAX = 11
}

[StructLayout(LayoutKind.Sequential)]
public struct MOUSEINPUT
{
public int dx;
public int dy;
public uint mouseData;
public uint dwFlags;
public uint time;
public IntPtr dwExtraInfo;
}

[StructLayout(LayoutKind.Sequential)]
public struct KEYBDINPUT
{
public ushort wVk;
public ushort wScan;
public uint dwFlags;
public uint time;
public IntPtr dwExtraInfo;
}

[StructLayout(LayoutKind.Sequential)]
public struct HARDWAREINPUT
{
public uint uMsg;
public ushort wParamL;
public ushort wParamH;
}

[StructLayout(LayoutKind.Explicit)]
public struct INPUT
{
[FieldOffset(0)]
public int type;
[FieldOffset(4)]
public MOUSEINPUT mi;
[FieldOffset(4)]
public KEYBDINPUT ki;
[FieldOffset(4)]
public HARDWAREINPUT hi;
}

public const int HIDE_WINDOW = 0;
public const int SHOW_OPENWINDOW = 1;
public const int SHOW_ICONWINDOW = 2;
public const int SHOW_FULLSCREEN = 3;
public const int SHOW_OPENNOACTIVATE = 4;
public const int SW_PARENTCLOSING = 1;
public const int SW_OTHERZOOM = 2;
public const int SW_PARENTOPENING = 3;
public const int SW_OTHERUNZOOM = 4;

public const int SWP_NOSIZE = 0x0001;
public const int SWP_NOMOVE = 0x0002;
public const int SWP_NOZORDER = 0x0004;
public const int SWP_NOREDRAW = 0x0008;
public const int SWP_NOACTIVATE = 0x0010;
public const int SWP_FRAMECHANGED = 0x0020; /* The frame changed: send WM_NCCALCSIZE */
public const int SWP_SHOWWINDOW = 0x0040;
public const int SWP_HIDEWINDOW = 0x0080;
public const int SWP_NOCOPYBITS = 0x0100;
public const int SWP_NOOWNERZORDER = 0x0200; /* Don't do owner Z ordering */
public const int SWP_NOSENDCHANGING = 0x0400; /* Don't send WM_WINDOWPOSCHANGING */
public const int SWP_DRAWFRAME = SWP_FRAMECHANGED;
public const int SWP_NOREPOSITION = SWP_NOOWNERZORDER;
public const int SWP_DEFERERASE = 0x2000;
public const int SWP_ASYNCWINDOWPOS = 0x4000;

public const int HWND_TOP = 0;
public const int HWND_BOTTOM = 1;
public const int HWND_TOPMOST = -1;
public const int HWND_NOTOPMOST = -2;

public enum PeekMessageFlags
{
PM_NOREMOVE = 0,
PM_REMOVE = 1,
PM_NOYIELD = 2
}

public enum MouseEventFlags
{
Move = 0x0001,
LeftDown = 0x0002,
LeftUp = 0x0004,
RightDown = 0x0008,
RightUp = 0x0010,
MiddleDown = 0x0020,
MiddleUp = 0x0040,
Wheel = 0x0800,
Absolute = 0x8000
}

public enum ScrollBarMsg
{
SB_LINEUP = 0,
SB_LINELEFT = 0,
SB_LINEDOWN = 1,
SB_LINERIGHT = 1,
SB_PAGEUP = 2,
SB_PAGELEFT = 2,
SB_PAGEDOWN = 3,
SB_PAGERIGHT = 3,
SB_THUMBPOSITION = 4,
SB_THUMBTRACK = 5,
SB_TOP = 6,
SB_LEFT = 6,
SB_BOTTOM = 7,
SB_RIGHT = 7,
SB_ENDSCROLL = 8,
WM_PAINT = 0x000F
}

public enum WindowMessages : int
{
WM_NULL = 0x0000,
WM_CREATE = 0x0001,
WM_DESTROY = 0x0002,
WM_MOVE = 0x0003,
WM_SIZE = 0x0005,
WM_ACTIVATE = 0x0006,
WM_SETFOCUS = 0x0007,
WM_KILLFOCUS = 0x0008,
WM_ENABLE = 0x000A,
WM_SETREDRAW = 0x000B,
WM_SETTEXT = 0x000C,
WM_GETTEXT = 0x000D,
WM_GETTEXTLENGTH = 0x000E,
WM_PAINT = 0x000F,
WM_CLOSE = 0x0010,
WM_QUERYENDSESSION = 0x0011,
WM_QUIT = 0x0012,
WM_QUERYOPEN = 0x0013,
WM_ERASEBKGND = 0x0014,
WM_SYSCOLORCHANGE = 0x0015,
WM_ENDSESSION = 0x0016,
WM_SHOWWINDOW = 0x0018,
WM_CTLCOLOR = 0x0019,
WM_WININICHANGE = 0x001A,
WM_SETTINGCHANGE = 0x001A,
WM_DEVMODECHANGE = 0x001B,
WM_ACTIVATEAPP = 0x001C,
WM_FONTCHANGE = 0x001D,
WM_TIMECHANGE = 0x001E,
WM_CANCELMODE = 0x001F,
WM_SETCURSOR = 0x0020,
WM_MOUSEACTIVATE = 0x0021,
WM_CHILDACTIVATE = 0x0022,
WM_QUEUESYNC = 0x0023,
WM_GETMINMAXINFO = 0x0024,
WM_PAINTICON = 0x0026,
WM_ICONERASEBKGND = 0x0027,
WM_NEXTDLGCTL = 0x0028,
WM_SPOOLERSTATUS = 0x002A,
WM_DRAWITEM = 0x002B,
WM_MEASUREITEM = 0x002C,
WM_DELETEITEM = 0x002D,
WM_VKEYTOITEM = 0x002E,
WM_CHARTOITEM = 0x002F,
WM_SETFONT = 0x0030,
WM_GETFONT = 0x0031,
WM_SETHOTKEY = 0x0032,
WM_GETHOTKEY = 0x0033,
WM_QUERYDRAGICON = 0x0037,
WM_COMPAREITEM = 0x0039,
WM_GETOBJECT = 0x003D,
WM_COMPACTING = 0x0041,
WM_COMMNOTIFY = 0x0044,
WM_WINDOWPOSCHANGING = 0x0046,
WM_WINDOWPOSCHANGED = 0x0047,
WM_POWER = 0x0048,
WM_COPYDATA = 0x004A,
WM_CANCELJOURNAL = 0x004B,
WM_NOTIFY = 0x004E,
WM_INPUTLANGCHANGEREQUEST = 0x0050,
WM_INPUTLANGCHANGE = 0x0051,
WM_TCARD = 0x0052,
WM_HELP = 0x0053,
WM_USERCHANGED = 0x0054,
WM_NOTIFYFORMAT = 0x0055,
WM_CONTEXTMENU = 0x007B,
WM_STYLECHANGING = 0x007C,
WM_STYLECHANGED = 0x007D,
WM_DISPLAYCHANGE = 0x007E,
WM_GETICON = 0x007F,
WM_SETICON = 0x0080,
WM_NCCREATE = 0x0081,
WM_NCDESTROY = 0x0082,
WM_NCCALCSIZE = 0x0083,
WM_NCHITTEST = 0x0084,
WM_NCPAINT = 0x0085,
WM_NCACTIVATE = 0x0086,
WM_GETDLGCODE = 0x0087,
WM_SYNCPAINT = 0x0088,
WM_NCMOUSEMOVE = 0x00A0,
WM_NCLBUTTONDOWN = 0x00A1,
WM_NCLBUTTONUP = 0x00A2,
WM_NCLBUTTONDBLCLK = 0x00A3,
WM_NCRBUTTONDOWN = 0x00A4,
WM_NCRBUTTONUP = 0x00A5,
WM_NCRBUTTONDBLCLK = 0x00A6,
WM_NCMBUTTONDOWN = 0x00A7,
WM_NCMBUTTONUP = 0x00A8,
WM_NCMBUTTONDBLCLK = 0x00A9,
WM_KEYDOWN = 0x0100,
WM_KEYUP = 0x0101,
WM_CHAR = 0x0102,
WM_DEADCHAR = 0x0103,
WM_SYSKEYDOWN = 0x0104,
WM_SYSKEYUP = 0x0105,
WM_SYSCHAR = 0x0106,
WM_SYSDEADCHAR = 0x0107,
WM_KEYLAST = 0x0108,
WM_IME_STARTCOMPOSITION = 0x010D,
WM_IME_ENDCOMPOSITION = 0x010E,
WM_IME_COMPOSITION = 0x010F,
WM_IME_KEYLAST = 0x010F,
WM_INITDIALOG = 0x0110,
WM_COMMAND = 0x0111,
WM_SYSCOMMAND = 0x0112,
WM_TIMER = 0x0113,
WM_HSCROLL = 0x0114,
WM_VSCROLL = 0x0115,
WM_INITMENU = 0x0116,
WM_INITMENUPOPUP = 0x0117,
WM_MENUSELECT = 0x011F,
WM_MENUCHAR = 0x0120,
WM_ENTERIDLE = 0x0121,
WM_MENURBUTTONUP = 0x0122,
WM_MENUDRAG = 0x0123,
WM_MENUGETOBJECT = 0x0124,
WM_UNINITMENUPOPUP = 0x0125,
WM_MENUCOMMAND = 0x0126,
WM_CTLCOLORMSGBOX = 0x0132,
WM_CTLCOLOREDIT = 0x0133,
WM_CTLCOLORLISTBOX = 0x0134,
WM_CTLCOLORBTN = 0x0135,
WM_CTLCOLORDLG = 0x0136,
WM_CTLCOLORSCROLLBAR = 0x0137,
WM_CTLCOLORSTATIC = 0x0138,
WM_MOUSEMOVE = 0x0200,
WM_LBUTTONDOWN = 0x0201,
WM_LBUTTONUP = 0x0202,
WM_LBUTTONDBLCLK = 0x0203,
WM_RBUTTONDOWN = 0x0204,
WM_RBUTTONUP = 0x0205,
WM_RBUTTONDBLCLK = 0x0206,
WM_MBUTTONDOWN = 0x0207,
WM_MBUTTONUP = 0x0208,
WM_MBUTTONDBLCLK = 0x0209,
WM_MOUSEWHEEL = 0x020A,
WM_PARENTNOTIFY = 0x0210,
WM_ENTERMENULOOP = 0x0211,
WM_EXITMENULOOP = 0x0212,
WM_NEXTMENU = 0x0213,
WM_SIZING = 0x0214,
WM_CAPTURECHANGED = 0x0215,
WM_MOVING = 0x0216,
WM_DEVICECHANGE = 0x0219,
WM_MDICREATE = 0x0220,
WM_MDIDESTROY = 0x0221,
WM_MDIACTIVATE = 0x0222,
WM_MDIRESTORE = 0x0223,
WM_MDINEXT = 0x0224,
WM_MDIMAXIMIZE = 0x0225,
WM_MDITILE = 0x0226,
WM_MDICASCADE = 0x0227,
WM_MDIICONARRANGE = 0x0228,
WM_MDIGETACTIVE = 0x0229,
WM_MDISETMENU = 0x0230,
WM_ENTERSIZEMOVE = 0x0231,
WM_EXITSIZEMOVE = 0x0232,
WM_DROPFILES = 0x0233,
WM_MDIREFRESHMENU = 0x0234,
WM_IME_SETCONTEXT = 0x0281,
WM_IME_NOTIFY = 0x0282,
WM_IME_CONTROL = 0x0283,
WM_IME_COMPOSITIONFULL = 0x0284,
WM_IME_SELECT = 0x0285,
WM_IME_CHAR = 0x0286,
WM_IME_REQUEST = 0x0288,
WM_IME_KEYDOWN = 0x0290,
WM_IME_KEYUP = 0x0291,
WM_MOUSEHOVER = 0x02A1,
WM_MOUSELEAVE = 0x02A3,
WM_CUT = 0x0300,
WM_COPY = 0x0301,
WM_PASTE = 0x0302,
WM_CLEAR = 0x0303,
WM_UNDO = 0x0304,
WM_RENDERFORMAT = 0x0305,
WM_RENDERALLFORMATS = 0x0306,
WM_DESTROYCLIPBOARD = 0x0307,
WM_DRAWCLIPBOARD = 0x0308,
WM_PAINTCLIPBOARD = 0x0309,
WM_VSCROLLCLIPBOARD = 0x030A,
WM_SIZECLIPBOARD = 0x030B,
WM_ASKCBFORMATNAME = 0x030C,
WM_CHANGECBCHAIN = 0x030D,
WM_HSCROLLCLIPBOARD = 0x030E,
WM_QUERYNEWPALETTE = 0x030F,
WM_PALETTEISCHANGING = 0x0310,
WM_PALETTECHANGED = 0x0311,
WM_HOTKEY = 0x0312,
WM_PRINT = 0x0317,
WM_PRINTCLIENT = 0x0318,
WM_HANDHELDFIRST = 0x0358,
WM_HANDHELDLAST = 0x035F,
WM_AFXFIRST = 0x0360,
WM_AFXLAST = 0x037F,
WM_PENWINFIRST = 0x0380,
WM_PENWINLAST = 0x038F,
WM_APP = 0x8000,
WM_USER = 0x0400,
WM_REFLECT = WM_USER + 0x1c00
}

//define the window menu message.
public enum WindowMenuMessage : int
{
SC_SIZE = 0xF000,
SC_MOVE = 0xF010,
SC_MINIMIZE = 0xF020,
SC_MAXIMIZE = 0xF030,
SC_NEXTWINDOW = 0xF040,
SC_PREVWINDOW = 0xF050,
SC_CLOSE = 0xF060,
SC_VSCROLL = 0xF070,
SC_HSCROLL = 0xF080,
SC_MOUSEMENU = 0xF090,
SC_KEYMENU = 0xF100,
SC_ARRANGE = 0xF110,
SC_RESTORE = 0xF120,
SC_TASKLIST = 0xF130,
SC_SCREENSAVE = 0xF140,
SC_HOTKEY = 0xF150,
SC_DEFAULT = 0xF160,
SC_MONITORPOWER = 0xF170,
SC_CONTEXTHELP = 0xF180,
SC_SEPARATOR = 0xF00F
}

/// <summary>
/// Defines the style bits that a window can have
/// </summary>
public enum WindowStyles : uint
{
WS_BORDER = 0x800000,
WS_CAPTION = 0xC00000,// ' WS_BORDER Or WS_DLGFRAME
WS_CHILD = 0x40000000,
WS_CHILDWINDOW = (WS_CHILD),
WS_CLIPCHILDREN = 0x2000000,
WS_CLIPSIBLINGS = 0x4000000,
WS_DISABLED = 0x8000000,
WS_DLGFRAME = 0x400000,
WS_EX_ACCEPTFILES = 0x10,
WS_EX_DLGMODALFRAME = 0x1,
WS_EX_NOPARENTNOTIFY = 0x4,
WS_EX_TOPMOST = 0x8,
WS_EX_TRANSPARENT = 0x20,
WS_EX_TOOLWINDOW = 0x80,
WS_EX_APPWINDOW = 0x40000,
WS_GROUP = 0x20000,
WS_HSCROLL = 0x100000,
WS_MAXIMIZE = 0x1000000,
WS_MAXIMIZEBOX = 0x10000,
WS_MINIMIZE = 0x20000000,
WS_MINIMIZEBOX = 0x20000,
WS_OVERLAPPED = 0x0,
WS_POPUP = 0x80000000,
WS_SYSMENU = 0x80000,
WS_TABSTOP = 0x10000,
WS_THICKFRAME = 0x40000,
WS_VISIBLE = 0x10000000,
WS_VSCROLL = 0x200000,
WS_ICONIC = WS_MINIMIZE,
WS_POPUPWINDOW = (WS_POPUP | WS_BORDER | WS_SYSMENU),
WS_SIZEBOX = WS_THICKFRAME,
WS_TILED = WS_OVERLAPPED,
WS_OVERLAPPEDWINDOW = (WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX)
}

public struct WindowInfo
{
public int size;
public Rectangle window;
public Rectangle client;
public int style;
public int exStyle;
public int windowStatus;
public uint xWindowBorders;
public uint yWindowBorders;
public short atomWindowtype;
public short creatorVersion;
}

public struct WindowPlacement
{
public int length;
public int flags;
public int showCmd;
public Point minPosition;
public Point maxPosition;
public Rectangle normalPosition;
}

public struct Rect
{
public int left;
public int top;
public int right;
public int bottom;

public int Width
{
get
{
return right - left;
}
}

public int Height
{
get
{
return bottom - top;
}
}
}

//constant for IACC.
public enum IACC : int
{
//constant for MSAA interface.
OBJID_WINDOW = 0,
OBJID_CLIENT = -4,
}

public delegate bool EnumWindowEventHandler(IntPtr hWnd, Int32 lParam);

[DllImport("user32.dll", EntryPoint = "GetCursorPos")]
public static extern int GetCursorPos(ref POINT lpPoint);
//public static unsafe extern int GetCursorPos(POINT* lpPoint);

[DllImport("User32.dll")]
public extern static void mouse_event(int dwFlags, int dx, int dy, int dwData, IntPtr dwExtraInfo);

[DllImport("user32.dll", EntryPoint = "SetCursorPos")]
public static extern bool SetCursorPos(int x, int y);

[DllImport("user32.dll", EntryPoint = "WindowFromPoint")]
public static extern IntPtr WindowFromPoint(int xPoint, int yPoint);

[DllImport("user32.dll", EntryPoint = "FindWindow")]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

[DllImport("user32.dll", EntryPoint = "FindWindowEx")]
public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);

//GUID of IAccessible interface
public static Guid IACCUID = new Guid("618736e0-3c3d-11cf-810c-00aa00389b71");

[DllImport("oleacc.dll")]
public static extern uint GetStateText(uint dwStateBit, [Out] StringBuilder lpszStateBit, uint cchStateBitMax);

[DllImport("oleacc.dll")]
public static extern uint GetRoleText(uint dwRole, [Out] StringBuilder lpszRole, uint cchRoleMax);

[DllImport("oleacc.dll")]
public static extern IntPtr AccessibleObjectFromPoint(POINT pt, [Out, MarshalAs(UnmanagedType.Interface)] out IAccessible accObj, [Out] out object ChildID);

[DllImport("oleacc.dll", ExactSpelling = true, PreserveSig = false)]
[return: MarshalAs(UnmanagedType.Interface)]
public static extern object AccessibleObjectFromWindow(IntPtr hwnd, int dwObjectID, ref Guid riid, ref IAccessible ppvObject);

[DllImport("Oleacc.dll")]
public static extern int AccessibleChildren(IAccessible paccContainer, int iChildStart, int cChildren, [Out] object[] rgvarChildren, out int pcObtained);

[DllImport("oleacc.dll", PreserveSig = false)]
[return: MarshalAs(UnmanagedType.Interface)]
public static extern object ObjectFromLresult(UIntPtr lResult,
[MarshalAs(UnmanagedType.LPStruct)] Guid refiid, IntPtr wParam);

[DllImport("oleacc.dll", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)]
public static extern Int32 ObjectFromLresult(Int32 lResult, ref Guid riid, Int32 wParam, out IHTMLDocument2 ppvObject);

[DllImport("user32.dll")]
public static extern int GetWindowModuleFileName(IntPtr hWnd, StringBuilder lpString, int nMaxCount);

[DllImport("user32.dll")]
public static extern int SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);

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

[DllImport("user32.dll")]
public static extern bool GetWindowPlacement(IntPtr window, ref WindowPlacement position);

[DllImport("User32.dll")]
public static extern int RegisterWindowMessage(string message);

[DllImport("User32.dll")]
public static extern void EnumWindows(EnumWindowEventHandler callback, Int32 lParam);

// [DllImport("User32.dll")]
// public static extern Int32 GetWindowText(IntPtr hWnd, StringBuilder lpString, Int32 nMaxCount);

[DllImport("User32.dll")]
public static extern bool IsWindowVisible(IntPtr hWnd);

[DllImport("User32.dll")]
public static extern Int32 GetWindow(IntPtr hWnd, Int32 wCmd);

[DllImport("User32.dll")]
public static extern bool PrintWindow(IntPtr hwnd, IntPtr hDC, uint nFlags);

// [DllImport("User32.dll")]
// public static extern WindowStyles GetWindowLong(IntPtr hWnd, Int32 index);

[DllImport("User32.dll")]
public static extern IntPtr GetParent(IntPtr hWnd);

[DllImport("User32.dll")]
public static extern int GetClassName(IntPtr hWnd, StringBuilder lpClassName, int nMaxCount);

[DllImport("User32.dll")]
public static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);

[DllImport("User32.dll")]
public static extern WindowStyles GetWindowLong(IntPtr hWnd, int index);

[DllImport("User32.dll")]
public static extern int SendMessageTimeout(IntPtr hWnd, int uMsg, int wParam, int lParam, int fuFlags, int uTimeout, out UIntPtr lpdwResult);

[DllImport("User32.dll")]
public static extern int GetClassLong(IntPtr hWnd, int index);

[DllImport("User32.dll")]
public static extern int GetWindowThreadProcessId(IntPtr hWnd, out int processId);

[DllImport("User32.dll")]
public unsafe static extern UInt32 SendInput(UInt32 nInputs, INPUT* pInputs, int cbSize);

[DllImport("User32.dll")]
public static extern UInt32 SendInput(UInt32 nInputs, INPUT[] pInputs, int cbSize);

[DllImport("User32.dll")]
public static extern int SendMessage(IntPtr hWnd, int uMsg, int wParam, int lParam);

[DllImport("User32.dll")]
public static extern int SendMessage(IntPtr hWnd, int Msg, IntPtr wParam, string lParam);

[DllImport("User32.dll")]
public static extern int PostMessage(IntPtr hWnd, int uMsg, int wParam, int lParam);

[DllImport("User32.dll")]
public static extern void SwitchToThisWindow(IntPtr hWnd, int altTabActivated);

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

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

[DllImport("user32.dll")]
public static extern IntPtr GetDesktopWindow();

[DllImport("user32.dll")]
public static extern IntPtr GetForegroundWindow();

[DllImport("user32.dll")]
public static extern bool SetForegroundWindow(IntPtr hWnd);

[DllImport("user32.dll")]
public static extern bool BringWindowToTop(IntPtr window);

[DllImport("user32.dll")]
public static extern bool GetWindowInfo(IntPtr hwnd, ref WindowInfo info);

[DllImport("user32.dll")]
public static extern IntPtr GetWindowDC(IntPtr hwnd);

[DllImport("user32.dll")]
public static extern IntPtr GetDC(IntPtr hwnd);

[DllImport("user32.dll")]
public static extern Int32 ReleaseDC(IntPtr hwnd, IntPtr hdc);

[DllImport("user32.dll")]
public static extern bool GetWindowRect(IntPtr hwnd, ref Rect rectangle);

[DllImport("user32.dll")]
public static extern bool GetClientRect(IntPtr hwnd, ref Rect rectangle);

[DllImport("user32.dll")]
public static extern IntPtr GetMessageExtraInfo();

//[DllImport("user32.dll")]
//public static extern IntPtr WindowFromPoint(Point pt);

[DllImport("user32.dll")]
public static extern IntPtr SetCapture(IntPtr hWnd);

[DllImport("user32.dll")]
public static extern int ReleaseCapture();

//[DllImport("user32.dll")]
//public static extern IntPtr SelectObject(IntPtr hDc, IntPtr hObject);

[DllImport("user32.dll")]
public static extern IntPtr GetStockObject(int nObject);

[DllImport("user32.dll")]
public static extern int InvalidateRect(IntPtr hWnd, IntPtr lpRect, int bErase);

[DllImport("user32.dll")]
public static extern int UpdateWindow(IntPtr hWnd);

[DllImport("user32.dll")]
public static extern int RedrawWindow(IntPtr hWnd, IntPtr lprcUpdate, IntPtr hrgnUpdate, uint flags);

[DllImport("user32.dll")]
public static extern IntPtr GetActiveWindow();

[DllImport("user32.dll")]
public static extern IntPtr SetActiveWindow(IntPtr hWnd);

#endregion Windows

#region GDI - gdi32.dll

public enum BinaryRasterOperations
{
R2_BLACK = 1, /* 0 */
R2_NOTMERGEPEN = 2, /* DPon */
R2_MASKNOTPEN = 3, /* DPna */
R2_NOTCOPYPEN = 4, /* PN */
R2_MASKPENNOT = 5, /* PDna */
R2_NOT = 6, /* Dn */
R2_XORPEN = 7, /* DPx */
R2_NOTMASKPEN = 8, /* DPan */
R2_MASKPEN = 9, /* DPa */
R2_NOTXORPEN = 10, /* DPxn */
R2_NOP = 11, /* D */
R2_MERGENOTPEN = 12, /* DPno */
R2_COPYPEN = 13, /* P */
R2_MERGEPENNOT = 14, /* PDno */
R2_MERGEPEN = 15, /* DPo */
R2_WHITE = 16, /* 1 */
R2_LAST = 16
}

public enum TernaryRasterOperations
{
SRCCOPY = 0x00CC0020, /* dest = source */
SRCPAINT = 0x00EE0086, /* dest = source OR dest */
SRCAND = 0x008800C6, /* dest = source AND dest */
SRCINVERT = 0x00660046, /* dest = source XOR dest */
SRCERASE = 0x00440328, /* dest = source AND (NOT dest ) */
NOTSRCCOPY = 0x00330008, /* dest = (NOT source) */
NOTSRCERASE = 0x001100A6, /* dest = (NOT src) AND (NOT dest) */
MERGECOPY = 0x00C000CA, /* dest = (source AND pattern) */
MERGEPAINT = 0x00BB0226, /* dest = (NOT source) OR dest */
PATCOPY = 0x00F00021, /* dest = pattern */
PATPAINT = 0x00FB0A09, /* dest = DPSnoo */
PATINVERT = 0x005A0049, /* dest = pattern XOR dest */
DSTINVERT = 0x00550009, /* dest = (NOT dest) */
BLACKNESS = 0x00000042, /* dest = BLACK */
WHITENESS = 0x00FF0062 /* dest = WHITE */

}

public const int SRCCOPY = 0x00CC0020;

[DllImport("gdi32.dll")]
public static extern bool BitBlt(IntPtr hdcDst, int xDst, int yDst, int cx, int cy, IntPtr hdcSrc, int xSrc, int ySrc, uint ulRop);

[DllImport("gdi32.dll")]
public static extern bool StretchBlt(IntPtr hdcDst, int xDst, int yDst, int cx, int cy, IntPtr hdcSrc, int xSrc, int ySrc, int cxSrc, int cySrc, uint ulRop);

[DllImport("gdi32.dll")]
public static extern IntPtr CreateDC(IntPtr lpszDriver, string lpszDevice, IntPtr lpszOutput, IntPtr lpInitData);

[DllImport("gdi32.dll")]
public static extern IntPtr DeleteDC(IntPtr hdc);

[DllImport("gdi32.dll")]
public static extern IntPtr CreateCompatibleBitmap(IntPtr hDC, int nWidth, int nHeight);

[DllImport("gdi32.dll")]
public static extern IntPtr CreateCompatibleDC(IntPtr hDC);

[DllImport("gdi32.dll")]
public static extern bool DeleteObject(IntPtr hObject);

[DllImport("gdi32.dll")]
public static extern IntPtr SelectObject(IntPtr hDC, IntPtr hObject);

[DllImport("gdi32.dll")]
public static extern bool BitBlt(IntPtr hdcDst, int xDst, int yDst, int cx, int cy, IntPtr hdcSrc, int xSrc, int ySrc, uint ulRop);

[DllImport("gdi32.dll")]
public static extern bool StretchBlt(IntPtr hdcDst, int xDst, int yDst, int cx, int cy, IntPtr hdcSrc, int xSrc, int ySrc, int cxSrc, int cySrc, uint ulRop);

[DllImport("gdi32.dll")]
public static extern bool Rectangle(IntPtr hdcDst, int nLeftRect, int nTopRect, int nRightRect, int nBottomRect);

[DllImport("gdi32.dll")]
public static extern IntPtr CreateDC(IntPtr lpszDriver, string lpszDevice, IntPtr lpszOutput, IntPtr lpInitData);

[DllImport("gdi32.dll")]
public static extern IntPtr DeleteDC(IntPtr hdc);
[DllImport("gdi32.dll")]
public static extern IntPtr CreateCompatibleBitmap(IntPtr hDC, int nWidth, int nHeight);

[DllImport("gdi32.dll")]
public static extern IntPtr CreateCompatibleDC(IntPtr hDC);

[DllImport("gdi32.dll")]
public static extern bool DeleteObject(IntPtr hObject);

[DllImport("gdi32.dll")]
public static extern IntPtr SelectObject(IntPtr hDC, IntPtr hObject);

[DllImport("gdi32.Dll ")]
public static extern int CreateRoundRectRgn(int nLeftRect, int nTopRect, int nRightRect, int nBottomRect, int nWidthEllipse, int nHeightEllipse);

[DllImport("gdi32.dll", EntryPoint = "PolyPolygon")]
public static extern int PolyPolygon(int hdc, ref int lpPoint, ref int lpPolyCounts, int nCount);//绘制多边形

[DllImport("gdi32.dll", EntryPoint = "CreatePen")]
public static extern int CreatePen(int nPenStyle, int nWidth, int crColor);//创建画笔

[DllImport("gdi32.dll", EntryPoint = "SelectObject")]
public static extern int SelectObject(int hdc, int hObject); //将对象[画笔、画刷、位图等]选入指定的设备描述表

[DllImport("gdi32.dll", EntryPoint = "DeleteObject")]
public static extern int DeleteObject(int hObject);//删除对象 释放资源

[DllImport("gdi32.dll", EntryPoint = "CreatePatternBrush")]
public static extern int CreatePatternBrush(int hBitmap);//通过位图创建画刷

#endregion

#region Shlwapi.dll

[DllImport("Shlwapi.dll")]
public static extern string PathGetArgs(string path);

public static string SafePathGetArgs(string path)
{
try
{
return WinApi.PathGetArgs(path);
}
catch (System.Exception) { }
return string.Empty;
}

[DllImport("Shlwapi.dll")]
public static extern int PathCompactPathEx(
System.Text.StringBuilder pszOut, /* Address of the string that has been altered */
System.Text.StringBuilder pszSrc, /* Pointer to a null-terminated string of max length (MAX_PATH) that contains the path to be altered */
uint cchMax, /* Maximum number of chars to be contained in the new string, including the null character. Example: cchMax = 8, then 7 chars will be returned, the last for the null character. */
uint dwFlags); /* Reserved */

public static string PathCompactPathEx(string source, uint maxChars)
{
StringBuilder pszOut = new StringBuilder((int)WinApi.MAX_PATH);
StringBuilder pszSrc = new StringBuilder(source);

int result = WinApi.PathCompactPathEx(pszOut, pszSrc, maxChars, (uint)0);
if (result == 1)
return pszOut.ToString();
else
{
System.Diagnostics.Debug.WriteLine("Win32.PathCompactPathEx failed to compact the path '" + source + "' down to '" + maxChars + "' characters.");
return string.Empty;
}
}

#endregion

#region Hotkeys

[Flags()]
public enum HotkeyModifiers
{
MOD_ALT = 0x0001,
MOD_CONTROL = 0x0002,
MOD_SHIFT = 0x0004,
MOD_WIN = 0x0008
}

[DllImport("User32")]
public static extern int RegisterHotKey(IntPtr hWnd, int id, uint modifiers, uint virtualkeyCode);

[DllImport("User32")]
public static extern int UnregisterHotKey(IntPtr hWnd, int id);

[DllImport("Kernel32")]
public static extern short GlobalAddAtom(string atomName);

[DllImport("Kernel32")]
public static extern short GlobalDeleteAtom(short atom);

#endregion

[DllImport("User32")]
public static extern int LockWindowUpdate(IntPtr windowHandle);

public static short MAKEWORD(byte a, byte b)
{
return ((short)(((byte)(a & 0xff)) | ((short)((byte)(b & 0xff))) << 8));
}

public static byte LOBYTE(short a)
{
return ((byte)(a & 0xff));
}

public static byte HIBYTE(short a)
{
return ((byte)(a >> 8));
}

public static int MAKELONG(short a, short b)
{
return (((int)(a & 0xffff)) | (((int)(b & 0xffff)) << 16));
}

public static short HIWORD(int a)
{
return ((short)(a >> 16));
}

public static short LOWORD(int a)
{
return ((short)(a & 0xffff));
}

[DllImport("Kernel32")]
public static extern int CopyFile(string source, string destination, int failIfExists);
}

};