Wrapper to check ClassName of the control
#include <WinAPISysWin.au3>
_WinAPI_IsClassName ( $hWnd, $sClassName )
| $hWnd | Handle to a control |
| $sClassName | Class name to check |
| True: | $sClassName matches ClassName retrieved from $hWnd |
| False: | $sClassName does not match ClassName retrieved from $hWnd |
Used for checking correct $hWnd is passed into function