Minimizes (but does not destroy) the specified window
#include <WinAPISysWin.au3>
_WinAPI_CloseWindow ( $hWnd )
| $hWnd | Handle to the window to be minimized. |
| Success: | True. |
| Failure: | False, call _WinAPI_GetLastError() to get extended error information. |
Search CloseWindow in MSDN Library.