我正在开发一个 DLL，目的是将它注入到游戏的运行进程中。我已经找到了一些关键函数的内存地址（通过 Immunity Debugger），我试图从我注入的 DLL 中调用这些函数。

到目前为止，每当我注入我的 DLL 并按下 ALT+T 的热键组合时，游戏客户端就会停止响应并崩溃。在一个特定的实例中，它显示了一个调试错误，说：“由于 ESP 值已更改，进程无法恢复执行”或类似内容。

我是否必须在从 DLL 内部调用进程函数之前和之后更改 ESP 值？如果是这样，我将如何正确执行此操作。

这是我的 DLL 的源代码：

// Warband_Chat.cpp : Defines the exported functions for the DLL application.

#include "stdafx.h"
#include <windows.h> // Include the functions we are going to use like Sleep and hInstance etc...
#include <fstream> // Allows us to work with files on the hard drive.
#include <iostream>

#define MAX_BUFFER_SIZE 300 // Maximum chat message size: 300 characters.
#define ThreadMake(x) CreateThread(NULL,NULL,(LPTHREAD_START_ROUTINE)&x,NULL,NULL,NULL); // Makes creating threads easy, it just requires 1 parameter(the function).
using namespace std;

// Define process(Warband) function based on its parameters and its location in memory.
typedef void(__cdecl* ChatFunc)(char*);
ChatFunc Chat = (ChatFunc)0x00450C60;


wchar_t *convertCharArrayToLPCWSTR(const char* charArray)
/* Converts a char array to a LCPWSTR string. */
{
    wchar_t* wString=new wchar_t[4096];
    MultiByteToWideChar(CP_ACP, 0, charArray, -1, wString, 4096);
    return wString;
}


int getkey(char x) // A function I made to get 1 key and automatically check ALT(vk_menu,0x12)
{
    if(GetAsyncKeyState(VK_MENU)&0x8000 && GetAsyncKeyState(x)&0x8000)//Check if we are pressing ALT and what ever is inside x
    {
        return 1; // if we are then return true.
    }
    return 0; // If the condition is not met then return false
}


void main() // the main function
{
    while(1) // the main loop
    {
        if(getkey('T')) // If we are pressing ALT + T then do
        {
                        ifstream file("chat.txt");
                        if (!file.is_open())
                        {
                                MessageBox(NULL, L"Failed to open chat.txt. Make sure its on your root Mount & Blade: Warband folder.", L"Failed", MB_OK);
                        }
                        else
                        {
                                char buffer[MAX_BUFFER_SIZE];
                                file.getline(buffer, MAX_BUFFER_SIZE-1);
                                Chat(buffer); // Call chat function
                                LPCWSTR newbuffer = convertCharArrayToLPCWSTR(buffer);
                                MessageBox(NULL, newbuffer, L"Success", MB_OK); // Post a message if we injected.
                                // the L before the messages is just to tell MSVS that those are LPCTSTR characters.
                        }
                        file.close();
            Sleep(20); // Sleep so we don't lag
        }
                Sleep(20); // no lag.
    }
}


extern "C" // DLL Hook
{
    __declspec(dllexport) BOOL __stdcall DllMain(HINSTANCE hInst,DWORD reason,LPVOID lpv)
    {
        if (reason == DLL_PROCESS_ATTACH)
        {
            DisableThreadLibraryCalls(hInst);
            ThreadMake(main); // Creates a new thread on the process.
        }
    return true;
    }
}