c# - Get listview from third party application -

i'm trying listview third party application, here's how i'm trying accomplish this

   [dllimport("user32.dll", charset = charset.auto, setlasterror = false)]     static extern intptr sendmessage(intptr hwnd, uint msg, intptr wparam, stringbuilder lparam);     const int lvm_getitemcount = 0x018b;     const int lvm_getitemtext = 0x0189;      // listbox contents hwnd     private list<string> getlistviewcontents(intptr listviewhwnd)     {         int cnt = (int)sendmessage(listviewhwnd, lvm_getitemcount, intptr.zero, null);         list<string> listviewcontents = new list<string>();         (int = 0; < cnt; i++)         {             stringbuilder sb = new stringbuilder(256);             intptr gettext = sendmessage(listviewhwnd, lvm_getitemtext, (intptr)i, sb);             listviewcontents.add(sb.tostring());          }         return listviewcontents;     } 

then use uispy handle listview property on application , use following code populate applications listbox:

     intptr ks = new intptr(0x00040fa8); // temp handle 3rd party listview      listbox1.datasource = getlistviewcontents(ks); 

no data returned, problem?

you passing stringbuffer expecting particular structure, per http://msdn.microsoft.com/en-us/library/windows/desktop/bb761055(v=vs.85).aspx

you should take @ getting text syslistview32 in 64bit