修改函数以读取 float C#

Question

我在网上找到这个功能：

[DllImport("kernel32.dll")]
public static extern bool ReadProcessMemory(IntPtr hProcess, int lpBaseAddress, byte[] buffer, int size, int lpNumberOfBytesRead);



    public static int ReadAddress(string Process_Name, string Address_Offsets)
    {
        Process[] P;
        if ((P = Process.GetProcessesByName(Process_Name)).Length == 0) return -1;
        int Addy = -1;
        while (Address_Offsets.Contains("  "))
            Address_Offsets = Address_Offsets.Replace("  ", " ");

        int Index = -1;
        while ((Index = Address_Offsets.IndexOf("0x", StringComparison.OrdinalIgnoreCase)) != -1)
            Address_Offsets = Address_Offsets.Replace(Address_Offsets.Substring(Index, 2), "");

        string[] tmp = Address_Offsets.Split(' ');
        if (tmp[0].Contains("+"))
        {
            string[] AD = tmp[0].Split('+');
            foreach (ProcessModule M in P[0].Modules)
                if (M.ModuleName.ToLower() == AD[0].ToLower())
                    Addy = M.BaseAddress.ToInt32() + int.Parse(AD[1], NumberStyles.HexNumber);
        }
        else Addy = int.Parse(tmp[0], NumberStyles.HexNumber);

        if (tmp.Length == 1) return Addy;
        byte[] buff = new byte[4];
        ReadProcessMemory(P[0].Handle, Addy, buff, 4, 0);
        Addy = BitConverter.ToInt32(buff, 0);
        for (int i = 1; i < tmp.Length; i++)
        {
            int Off = int.Parse(tmp[i], NumberStyles.HexNumber);
            ReadProcessMemory(P[0].Handle, Addy + Off, buff, 4, 0);
            Addy = i != (tmp.Length - 1) ? BitConverter.ToInt32(buff, 0) : Addy += Off;
        }
        return Addy;
    }

我的用法是这样的：

ReadAddress("solitaire", "solitaire.exe+97074 2c 10");

此函数非常适合读取整数。但我想读花车。有人告诉我，我必须做

ReadProcessMemory(P[0].Handle, Addy, buff, 4, 0); // after you dereference all pointers and get the final "desired" value. 
Addy = BitConverter.ToSingle(buff, 0); // ToSingle converts value to float.

但我不明白把他建议的代码放在函数的什么地方。有人可以帮我吗？提前致谢 :D.

Answer 1

int dataRead = ReadAddress("solitaire", "solitaire.exe+97074 2c 10");

在 int 中给你（希望）4 个字节。

读完这个int，你需要把它转换成浮点数，也就是

byte[] bytesOfTheNumber = BitConverter.GetBytes(dataRead);

先将整数转换为字节数组，然后

float theFloatYouWant = BitConverter.ToSingle(bytesOfTheNumber, 0);

使用该字节数组获取 float。

修改函数以读取 float C#

modify function to read float C#

c#

floating-point

readprocessmemory