Samsung SyncMaster 798MBplus Manual page 50

Picture Setting
1. Can be selected only when the Highlight Zone function is on. When selected, a menu window appears which can be used to adjust Contrast
and Sharpness within the Highlight Zone.
After changing the setting, select OK to save the changes, or Cancel to return to the previous setting.
Automatic detect
Manual detect
Exit Program
Auto Detect
Picture Setting
Full Screen
Highlight Off
Other Features