你好 请帮我在进程名为AC.exe上用C++ D3D绘制一段文字，文字是我厉害吧

首先，我们需要注入AC.exe进程，然后使用D3D绘制文字。这里提供一种思路：

1. 使用CreateRemoteThread函数创建一个远程线程，使得线程在AC.exe进程空间中执行。

2. 在远程线程中使用LoadLibraryA函数加载d3d9.dll，并获取Direct3DCreate9函数的地址。

3. 使用Direct3DCreate9函数创建IDirect3D9对象，并获取IDirect3DDevice9对象。

4. 创建ID3DXFont对象，并使用DrawText函数绘制文字。

5. 释放资源并退出线程。

下面是示例代码：

#include <Windows.h>
#include <iostream>
#include <d3d9.h>
#include <d3dx9.h>

// 字体大小
const int FONT_SIZE = 30;

// 需要绘制的文字
const char* TEXT_TO_DRAW = "我厉害吧";

// AC.exe进程名
const char* PROCESS_NAME = "AC.exe";

void DrawTextInACProcess()
{
    // 获取AC.exe进程句柄
    HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, GetProcessIdByName(PROCESS_NAME));
    if (hProcess == NULL)
    {
        std::cout << "OpenProcess failed, error code: " << GetLastError() << std::endl;
        return;
    }

    // 加载d3d9.dll
    LPVOID pLoadLibrary = (LPVOID)GetProcAddress(GetModuleHandleA("kernel32.dll"), "LoadLibraryA");
    if (pLoadLibrary == NULL)
    {
        std::cout << "GetProcAddress failed, error code: " << GetLastError() << std::endl;
        CloseHandle(hProcess);
        return;
    }

    // 在AC.exe进程中加载d3d9.dll
    LPVOID pRemoteLibraryPath = VirtualAllocEx(hProcess, NULL, strlen("d3d9.dll") + 1, MEM_COMMIT, PAGE_READWRITE);
    if (pRemoteLibraryPath == NULL)
    {
        std::cout << "VirtualAllocEx failed, error code: " << GetLastError() << std::endl;
        CloseHandle(hProcess);
        return;
    }
    if (!WriteProcessMemory(hProcess, pRemoteLibraryPath, "d3d9.dll", strlen("d3d9.dll") + 1, NULL))
    {
        std::cout << "WriteProcessMemory failed, error code: " << GetLastError() << std::endl;
        VirtualFreeEx(hProcess, pRemoteLibraryPath, strlen("d3d9.dll") + 1, MEM_RELEASE);
        CloseHandle(hProcess);
        return;
    }
    HANDLE hRemoteThread = CreateRemoteThread(hProcess, NULL, 0, (LPTHREAD_START_ROUTINE)pLoadLibrary, pRemoteLibraryPath, 0, NULL);
    if (hRemoteThread == NULL)
    {
        std::cout << "CreateRemoteThread failed, error code: " << GetLastError() << std::endl;
        VirtualFreeEx(hProcess, pRemoteLibraryPath, strlen("d3d9.dll") + 1, MEM_RELEASE);
        CloseHandle(hProcess);
        return;
    }
    WaitForSingleObject(hRemoteThread, INFINITE);
    VirtualFreeEx(hProcess, pRemoteLibraryPath, strlen("d3d9.dll") + 1, MEM_RELEASE);

    // 获取Direct3DCreate9函数地址
    LPVOID pDirect3DCreate9 = (LPVOID)GetProcAddress(GetModuleHandleA("d3d9.dll"), "Direct3DCreate9");
    if (pDirect3DCreate9 == NULL)
    {
        std::cout << "GetProcAddress failed, error code: " << GetLastError() << std::endl;
        CloseHandle(hProcess);
        return;
    }

    // 在AC.exe进程中创建IDirect3D9对象
    IDirect3D9* pD3D9 = NULL;
    HANDLE hRemoteD3D9 = CreateRemoteThread(hProcess, NULL, 0, (LPTHREAD_START_ROUTINE)pDirect3DCreate9, NULL, 0, NULL);
    if (hRemoteD3D9 == NULL)
    {
        std::cout << "CreateRemoteThread failed, error code: " << GetLastError() << std::endl;
        CloseHandle(hProcess);
        return;
    }
    WaitForSingleObject(hRemoteD3D9, INFINITE);
    DWORD dwRemoteD3D9;
    if (!GetExitCodeThread(hRemoteD3D9, &dwRemoteD3D9))
    {
        std::cout << "GetExitCodeThread failed, error code: " << GetLastError() << std::endl;
        CloseHandle(hRemoteD3D9);
        CloseHandle(hProcess);
        return;
    }
    pD3D9 = (IDirect3D9*)dwRemoteD3D9;
    CloseHandle(hRemoteD3D9);

    // 在AC.exe进程中创建IDirect3DDevice9对象
    IDirect3DDevice9* pD3DDevice9 = NULL;
    D3DPRESENT_PARAMETERS d3dpp = { 0 };
    d3dpp.Windowed = TRUE;
    d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
    HANDLE hRemoteD3DDevice9 = CreateRemoteThread(hProcess, NULL, 0, (LPTHREAD_START_ROUTINE)&pD3D9->CreateDevice, NULL, 0, NULL);
    if (hRemoteD3DDevice9 == NULL)
    {
        std::cout << "CreateRemoteThread failed, error code: " << GetLastError() << std::endl;
        CloseHandle(hProcess);
        return;
    }
    WaitForSingleObject(hRemoteD3DDevice9, INFINITE);
    DWORD dwRemoteD3DDevice9;
    if (!GetExitCodeThread(hRemoteD3DDevice9, &dwRemoteD3DDevice9))
    {
        std::cout << "GetExitCodeThread failed, error code: " << GetLastError() << std::endl;
        CloseHandle(hRemoteD3DDevice9);
        CloseHandle(hProcess);
        return;
    }
    pD3DDevice9 = (IDirect3DDevice9*)dwRemoteD3DDevice9;
    CloseHandle(hRemoteD3DDevice9);

    // 创建ID3DXFont对象
    ID3DXFont* pFont = NULL;
    if (FAILED(D3DXCreateFont(pD3DDevice9, FONT_SIZE, 0, FW_NORMAL, 0, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH | FF_DONTCARE, "Arial", &pFont)))
    {
        std::cout << "D3DXCreateFont failed" << std::endl;
        pD3DDevice9->Release();
        pD3D9->Release();
        CloseHandle(hProcess);
        return;
    }

    // 绘制文字
    RECT rect = { 100, 100, 0, 0 };
    pFont->DrawText(NULL, TEXT_TO_DRAW, -1, &rect, DT_LEFT | DT_TOP | DT_NOCLIP, D3DCOLOR_ARGB(255, 0, 255, 0));

    // 释放资源
    pFont->Release();
    pD3DDevice9->Release();
    pD3D9->Release();
    CloseHandle(hProcess);
}

DWORD GetProcessIdByName(const char* name)
{
    DWORD pid = 0;
    HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
    if (snapshot != INVALID_HANDLE_VALUE)
    {
        PROCESSENTRY32 processEntry;
        processEntry.dwSize = sizeof(processEntry);
        if (Process32First(snapshot, &processEntry))
        {
            do
            {
                if (strcmp(processEntry.szExeFile, name) == 0)
                {
                    pid = processEntry.th32ProcessID;
                    break;
                }
            } while (Process32Next(snapshot, &processEntry));
        }
        CloseHandle(snapshot);
    }
    return pid;
}

int main()
{
    DrawTextInACProcess();
    return 0;
}

需要注意的是，由于AC.exe可能使用了反作弊措施，导致无法注入代码，因此可能需要使用更复杂的技术手段，比如DLL注入或代码挂载等。此处仅提供一种基本思路，具体实现需要根据实际情况进行调整。