求救：64位 VirtualAllocEx 失败

Question

HWND hwnd1=::FindWindow(NULL,"XXXX");
HWND hwnd;
hwnd=::FindWindowEx(hwnd1,0,NULL,"XXXX");
hwnd=::FindWindowEx(hwnd,0,"#32770",NULL);
hwnd=::FindWindowEx(hwnd,0,NULL,"List1");
GetWindowThreadProcessId(hwnd1,&pid);
process=OpenProcess(PROCESS_VM_OPERATION|PROCESS_VM_READ|PROCESS_VM_WRITE|PROCESS_QUERY_INFORMATION,true,pid);
_lvi=(LVITEM *)VirtualAllocEx(process,NULL,sizeof(LVITEM)+1,MEM_COMMIT,PAGE_READWRITE);就到 _lvi 这里 _lvi=0 32位下就不等于0 求高人指点

Answer 1

VirtualAllocEx失败，看看GetLastError()的返回值是什么？

Answer 2

32位的程序去Open 64位的程序？或者相反？