ReadProcessMemory函数读出不正确数据

ReadProcessMemory的返回值是1读出地址里面应该是69616f77每次都读出是0012f678
HWND wind=::FindWindow(NULL,"asd"); if (wind==NULL)
{
::MessageBox(NULL,"","获取窗口失败",MB_OK);
}
DWORD jinchengid=NULL; ::GetWindowThreadProcessId(wind,&jinchengid); if (jinchengid==NULL)
{
::MessageBox(NULL,"","获取进程id失败",MB_OK);
}
  HANDLE handl=::OpenProcess(PROCESS_ALL_ACCESS,FALSE,jinchengid);    if (handl==NULL)
{
::MessageBox(NULL,"","打开失败",MB_OK);

}
LPCVOID jinzhi=(LPCVOID)0x004153f0;
TCHAR aa[20];
DWORD byread;
LPVOID shuzhi=(LPVOID)&aa;
BOOL boo=::ReadProcessMemory(handl,jinzhi,shuzhi,4,&byread); if (boo==NULL)
{
::MessageBox(NULL,"","读取失败",MB_OK);
}