🚀 go-pugleaf

I've build a function that returns the handle to a window who's caption 
starts with the String passed to it (see code below).  The problem I'm 
having is that when I call it a second time, say in a loop, it throws an 
EAccessViolation.  Any thoughts?

HWND TfrmMain::FindWindowLike(String strWinText)
{
 HWND hWindow; //Window handle
 char *ptr_chrTitle = ""; //Window title

 hWindow = FindWindow(NULL, NULL);   //Start with the first window

 do
 {
  SendMessage(hWindow, WM_GETTEXT, GetWindowTextLength(hWindow) + 1, 
(LPARAM)ptr_chrTitle); //Get the window's caption
  if (static_cast<String>(ptr_chrTitle).Pos(strWinText) == 1) //Matches! 
"Visual SourceSafe Explorer --..."
   return hWindow; //Return the handle
  else
   hWindow = GetNextWindow(hWindow, GW_HWNDNEXT);  //Get the handle to the 
next window
 } while (hWindow != NULL);  //Search until we run out of windows

 return hWindow; //Return the handle
}