Retrieves the specified system metric or system configuration setting
#include <WinAPISys.au3>
_WinAPI_GetSystemMetrics ( $iIndex )
| $iIndex | The system metric or configuration setting to be retrieved |
| Success: | The requested system metric |
| Failure: | 0, call _WinAPI_GetLastError() to get extended error information |
Search GetSystemMetrics in MSDN Library.