How to get data from ListView which is in another program?

Question

.NET

I try to do so

LVITEM lvi = new LVITEM();
lvi.mask = WinAPI.LVIF_TEXT;
lvi.cchTextMax = 512;
lvi.iItem = 1;
lvi.iSubItem = 0;

lvi.pszText = Marshal.AllocHGlobal(512);
IntPtr ptrLvi = Marshal.AllocHGlobal(Marshal.SizeOf(lvi));
            
Marshal.StructureToPtr(lvi, ptrLvi, false);

SendMessage(hListView, LVM_GETITEM, IntPtr.Zero, ptrLvi);

string itemText = Marshal.PtrToStringAuto(lvi.pszText);

Always comes something like "蕘Ѽ涸Ѻ"

Answer 1

Severely :)
Look towards interprocess communication. For example the Mutex class