// d3dkmdt.h
typedef enum _DISPLAYID_DETAILED_TIMING_TYPE_I_SYNC_POLARITY {
DIDDT1_Sync_Positive,
DIDDT1_Sync_Negative
} ;
View the official Windows Driver Kit DDI referenceNo description available.
The DISPLAYID_DETAILED_TIMING_TYPE_I_SYNC_POLARITY enumeration indicates the display device's sync polarity (whether the sync signal is positive or negative).
DIDDT1_Sync_PositiveIndicates that the sync polarity is positive.
DIDDT1_Sync_NegativeIndicates that the sync polarity is negative.