如何更改dll进程的内存？

以下是使用C++编写的示例代码，演示如何通过打开目标进程、更改其内存、读取其内存和关闭目标进程来更改DLL进程的内存：

#include <Windows.h>
#include <iostream>
using namespace std;

int main() {
    DWORD processId = 0;

    // 获取目标进程ID
    cout << "Enter the process ID: ";
    cin >> processId;
    
    // 打开目标进程
    HANDLE procHandle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, processId);
    if (procHandle == NULL) {
        cout << "Failed to open process!\n";
        return 1;
    }

    // 获取内存中的指针
    int* targetAddress = (int*)0x12345678;

    // 填充新的数据
    int newData = 0x12121212;

    // 写入内存
    BOOL isWriteSuccessful = WriteProcessMemory(procHandle, targetAddress, &newData, sizeof(newData), NULL);
    if (!isWriteSuccessful) {
        cout << "Failed to write memory!\n";
        CloseHandle(procHandle);
        return 1;
    }

    // 读取内存
    int readData = 0;
    BOOL isReadSuccessful = ReadProcessMemory(procHandle, targetAddress, &readData, sizeof(readData), NULL);
    if (!isReadSuccessful) {
        cout << "Failed to read memory!\n";
        CloseHandle(procHandle);
        return 1;
    }

    // 检查读取的数据是否相同
    if (newData == readData) {
        cout << "Memory updated successfully!\n";
    }
    else {
        cout << "Failed to update memory!\n";
    }

    // 关闭目标进程
    CloseHandle(procHandle);
    return 0;
}