// d3dkmddi.h
typedef enum _DXGK_SYNC_LOCK_STYLE {
DXGK_SYNC_LOCK_STYLE_NONE,
DXGK_SYNC_LOCK_STYLE_IDENTICAL
} DXGK_SYNC_LOCK_STYLE;
View the official Windows Driver Kit DDI referenceNo description available.
Used in the call to DxgkDdiSetTimingsFromVidPn to describe the style of display synchronization to be applied.
DXGK_SYNC_LOCK_STYLE_NONEIndicates that this path is not synchronized. If the Input.SyncLockStyle value of DXGK_SET_TIMING_PATH_INFO is set to this value, then the Input.SyncLockGroup should be set to zero.
DXGK_SYNC_LOCK_STYLE_IDENTICALIndicates that this path is synchronized with other paths with the Input.SyncLockGroup set to the same non-zero value where all the paths have an identical target mode.
The sync styled defined for WDDM 2.4 - WDDM 2.6 do not allow the styles applied within a group to be mixed, since a path with DXGK_SYNC_LOCK_STYLE_IDENTICAL can only be synchronized with another path with DXGK_SYNC_LOCK_STYLE_IDENTICAL. However, in future releases, sync styles will support and potentially require different styles within a group.