Result from "CodePtr(EnumChildProc)" ?

[norbert doerre]

I wrote a universal search engine for windows/controls of all kind, using both of the following methods:
a) Thread_ID = GetWindowThreadProcessId(lhWnd, ProcessID)
lRet = EnumThreadWindows(ThreadID, CodePtr(EnumThreadProc), lParam)
b) lRet = EnumChildWindows

   
Inside the code  I'm using a function to enumerate all windows and controls.  
Function EnumChildWindowsByParam (lhWnd As Long) As Long
   Local lParam As Long
	Local lRet As Long
==>   lRet = EnumChildWindows(lhWnd, CodePtr(EnumChildProc), lParam)
	Function = lRet
End Function

As you can see, a code pointer is used to access function EnumChildProc. This function however as defined gives back a result which I'd like to use to finish searching when the desired window/control was found via its parameters. I don't remember that the SDK offers directly a result from a function pointed to.
I'd be glad to be wrong.

[Michael Mattias]

Pass the address of "lparam" and fill that with the desired result.

i.e

  LOCAL lParam AS LONG
  iRet = EnumChildWindows (hWnd, CODEPTR (callbackProc), BYVAL VARPTR(lparam))
  IF ISTRUE iRet THEN   ' enumeration succeeded 
       Value_I_Want = lparam
  .....
FUNCTION CallBackProc (BYVAL hWnd AS LONG ,  lparam AS LONG) AS LONG

   ' whatever 
    lparam = value_to_return

END FUNCTION