关于流入

关于注入
先上代码：

struct thread_task{
    void *func;
    char param[100];
};

unsigned long __stdcall remote_thead_function(void *param)
{
    thread_task *task=(thread_task *)param;
    void __stdcall (*output_dbg_string)(LPCTSTR)=0;
    output_dbg_string=(void  __stdcall (*)(LPCTSTR))(task->func);
    output_dbg_string(task->param);
    return 0;
}

void __stdcall inject_code4(char wnd_title[])
{
    int r=0;
    HWND wnd_handle=NULL;
    unsigned long proc_id=0;
    HANDLE goal_proc_handle=NULL;
    void *code_vm=0;
    void *data_vm=0;
    thread_task task;
    void *sys_dll_handle=NULL;
    void *remote_thread=NULL;

    ZeroMemory(&task,sizeof(task));

    
    wnd_handle=FindWindow(NULL,wnd_title);
    GetWindowThreadProcessId(wnd_handle,&proc_id);
    goal_proc_handle=OpenProcess( PROCESS_CREATE_THREAD | PROCESS_VM_OPERATION | PROCESS_VM_WRITE, false, proc_id );
    
    
    sys_dll_handle=LoadLibrary("Kernel32.dll");
    task.func=(void *)GetProcAddress(sys_dll_handle,"OutputDebugString");
    FreeLibrary(sys_dll_handle);

    
    MoveMemory(task.param,"I'm be injected!",strlen("I'm be injected!"));

    
    code_vm=VirtualAllocEx(goal_proc_handle,NULL,2048,MEM_COMMIT | MEM_RESERVE,PAGE_EXECUTE_READWRITE);
    
    data_vm=VirtualAllocEx(goal_proc_handle,NULL,sizeof(task),MEM_COMMIT | MEM_RESERVE,PAGE_READWRITE);

    
    WriteProcessMemory(goal_proc_handle,code_vm,remote_thead_function,2048,NULL);
    
    WriteProcessMemory(goal_proc_handle,data_vm,&task,sizeof(task),NULL);

    
    CreateRemoteThread(goal_proc_handle,NULL,0,(LPTHREAD_START_ROUTINE)code_vm,data_vm,0,NULL);
}

void __fastcall TForm1::btn_inject_codeClick(TObject *Sender)
{
    inject_code4("Sample");

}


感觉流程应该没问题啊，但是总是出现va问题，难道有其他注意事项吗？
[解决办法]
是000000000错误