c#EasyHook，窗口标题更改

很抱歉，但我必须放入大块代码，这样您才能理解。

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Runtime.InteropServices;
using System.Text.RegularExpressions;
using System.Drawing;
using EasyHook;
using System.Windows.Forms;
namespace LunaInject
{
    public class Main : EasyHook.IEntryPoint
    {
        // Dictionary that matches a hdc handle for a poker table window to the value of its big blind
        static Dictionary<IntPtr, double> hdcList = new Dictionary<IntPtr, double>();
        IPokerBBMod.Program.IPokerModInterface Interface;
        LocalHook DrawTextExHook;
        Stack<String> Queue = new Stack<String>();
        // Regexes to match various poker client strings
        public static Regex money = new Regex(@"['$'£'€]?('d{1,4},)*'d+.?('d{1,3}|)"); // Matches 
        public static Regex limit = new Regex(@"(?:'d,'d{3}|'d{2,4})'b(?! 'd)'/(?:'d,'d{3}|'d{2,4}(?!/))'b(?! 'd)"); // Matches a limit eg: $2/$4
        public static Regex bigBlind = new Regex(@"'/(?:'d,'d{3}|'d{2,4}(?!/))'b(?! 'd)"); // Matches the big blind in a limit.

        // DrawTextExW is the Win32 function that draw text to the graphical are of client and the function we need to intercept
        [DllImport("user32.dll", CharSet = CharSet.Unicode, SetLastError = true, CallingConvention = CallingConvention.StdCall)]
        static extern int DrawTextExW(IntPtr hdc, [In, Out, MarshalAs(UnmanagedType.LPTStr)] string lpString, int cchText, [In, Out, MarshalAs(UnmanagedType.Struct)] ref RECT lprc, uint dwDTFormat, [In, Out, MarshalAs(UnmanagedType.Struct)] ref DRAWTEXTPARAMS dparams);
        // Function to force a window to redraw
        [DllImport("user32.dll")]
        static extern bool InvalidateRect(IntPtr hWnd, IntPtr lpRect, bool bErase);
        [DllImport("gdi32.dll")]
        static extern uint SetTextColor(IntPtr hdc, int crColor);

        // Delegate that holds the definition of our callback function that will be called whenever we intercept the DrawTextExW function.
        [UnmanagedFunctionPointer(CallingConvention.StdCall, CharSet = CharSet.Unicode, SetLastError = true)]
        delegate int DDrawTextEx(IntPtr hdc, [In, Out, MarshalAs(UnmanagedType.LPTStr)] string lpString, int cchText, [In, Out, MarshalAs(UnmanagedType.Struct)] ref RECT lprc, uint dwDTFormat, [In, Out, MarshalAs(UnmanagedType.Struct)] ref DRAWTEXTPARAMS dparams);
        // Win32 Struct
        [Serializable, StructLayout(LayoutKind.Sequential)]
        public struct DRAWTEXTPARAMS
        {
            public uint cbSize;
            public int iTabLength;
            public int iLeftMargin;
            public int iRightMargin;
            public uint uiLengthDrawn;
        }
        // Win32 Struct
        [Serializable, StructLayout(LayoutKind.Sequential)]
        public struct RECT
        {
            public int Left;
            public int Top;
            public int Right;
            public int Bottom;
            public RECT(int left_, int top_, int right_, int bottom_)
            {
                Left = left_;
                Top = top_;
                Right = right_;
                Bottom = bottom_;
            }
            public int Height { get { return Bottom - Top; } }
            public int Width { get { return Right - Left; } }
        }

        public Main(RemoteHooking.IContext InContext, String InChannelName)
        {
            // connect to host...
            Interface = RemoteHooking.IpcConnectClient<IPokerBBMod.Program.IPokerModInterface>(InChannelName);
        }
        public void Run(RemoteHooking.IContext InContext, String InChannelName)
        {
            // Install system hook to detect calls to DrawTextExW that is made by the client and call the function DrawText_Hooked when ever this happens
            try
            {
                DrawTextExHook = LocalHook.Create(LocalHook.GetProcAddress("user32.dll", "DrawTextExW"), new DDrawTextEx(DrawText_Hooked), this);
                DrawTextExHook.ThreadACL.SetExclusiveACL(new Int32[] { 0 });
            }
            catch (Exception ExtInfo)
            {
                Interface.ReportException(ExtInfo);
                return;
            }
            //// force entire desktop to redraw to update IPoker graphics immediately 
            InvalidateRect((IntPtr)null, (IntPtr)null, true);
            RemoteHooking.WakeUpProcess();
            // wait for host process termination...
            try
            {
                while (true)
                {
                    Thread.Sleep(500);
                    // transmit newly monitored file accesses...
                    if (Queue.Count > 0)
                    {
                        String[] Package = null;
                        lock (Queue)
                        {
                            Package = Queue.ToArray();
                            Queue.Clear();
                        }
                    }
                    else
                        Interface.Ping();
                }
            }
            catch
            {
            }
            //// force entire desktop to redraw to update IPoker graphics immediately 
            InvalidateRect((IntPtr)null, (IntPtr)null, true);
        }
        // Intercept function that is called whenever the ipoker client draws text to its graphical area.
        // IPoker draws text in a convuluted way, and it is extremely difficult to tell which window a piece of text is being drawn on hence the messy workaround
        static int DrawText_Hooked(IntPtr hdc, [In, Out, MarshalAs(UnmanagedType.LPTStr)] string lpString, int cchText, [In, Out, MarshalAs(UnmanagedType.Struct)] ref RECT lprc, uint dwDTFormat, [In, Out, MarshalAs(UnmanagedType.Struct)] ref DRAWTEXTPARAMS dparams)
        {
            double bigBlindAmount;
            double m;
            // If detect a call to DrawTextEx with a new hdc and dwDTFormat 0x0800, check to see if the text being draw matches a limit regex (ie: it is a table title)
            // If so find the value of the big blind and add it to our dictionary of hdc/big blind pair values.
            if (dwDTFormat == 0x0800 && !hdcList.ContainsKey(hdc))
            {
                Match tableTitle = limit.Match(lpString);
                if (tableTitle.Success)
                {
                    double.TryParse(bigBlind.Match(tableTitle.Value).Value.Substring(1), out bigBlindAmount);
                    hdcList.Add(hdc, Convert.ToDouble(bigBlindAmount));
                    InvalidateRect((IntPtr)null, (IntPtr)null, true);
                }
            }
            // Match the string being drawn to a money regex, if it matches the client is trying to write text that is money values
            else if (money.IsMatch(lpString) && Double.TryParse(lpString.Substring(0), out m))
            {
                // Get the big blind value for the money value and convert to big blinds
                if (dwDTFormat == 0x0800 && hdcList.ContainsKey(hdc))
                {
                    bigBlindAmount = hdcList[hdc];
                    m = m / bigBlindAmount;
                    string stringOut = m.ToString("N");
                    return DrawTextExW(hdc, stringOut, -1, ref lprc, dwDTFormat, ref dparams);
                }
                else
                {
                    return DrawTextExW(hdc, lpString, cchText, ref lprc, dwDTFormat, ref dparams);
                }
            }
            return DrawTextExW(hdc, lpString, cchText, ref lprc, dwDTFormat, ref dparams);
        }
    }
}

一切都很好，直到窗口标题从"Something 100/200"变为"Someting 150/300"。我必须获得新的价值。

这是我必须更新的代码的和平：

        bigBlindAmount = hdcList[hdc];
        m = m / bigBlindAmount;
        string stringOut = m.ToString("N");
        return DrawTextExW(hdc, stringOut, -1, ref lprc, dwDTFormat, ref dparams);

bigBlindAmount是应用程序标题中的150/300。当应用程序标题从100/200更改为15/300时，我必须将bigBlindAmount更改为150/300。

非常感谢您的回答！

Process.GetCurrentProcess().MainWindowTitle