D3DKMDT_VIDPN_PRESENT_PATH_IMPORTANCE - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// d3dkmdt.h
typedef enum _D3DKMDT_VIDPN_PRESENT_PATH_IMPORTANCE {
D3DKMDT_VPPI_UNINITIALIZED,
D3DKMDT_VPPI_PRIMARY,
D3DKMDT_VPPI_SECONDARY,
D3DKMDT_VPPI_TERTIARY,
D3DKMDT_VPPI_QUATERNARY,
D3DKMDT_VPPI_QUINARY,
D3DKMDT_VPPI_SENARY,
D3DKMDT_VPPI_SEPTENARY,
D3DKMDT_VPPI_OCTONARY,
D3DKMDT_VPPI_NONARY,
D3DKMDT_VPPI_DENARY
} D3DKMDT_VIDPN_PRESENT_PATH_IMPORTANCE;
View the official Windows Driver Kit DDI referenceNo description available.
The D3DKMDT_VIDPN_PRESENT_PATH_IMPORTANCE enumeration indicates the importance of a video present path.
D3DKMDT_VPPI_UNINITIALIZEDIndicates that a variable of type D3DKMDT_VIDPN_PRESENT_PATH_IMPORTANCE has not yet been assigned a meaningful value.
D3DKMDT_VPPI_PRIMARYIndicates importance level 1.
D3DKMDT_VPPI_SECONDARYIndicates importance level 2.
D3DKMDT_VPPI_TERTIARYIndicates importance level 3.
D3DKMDT_VPPI_QUATERNARYIndicates importance level 4.
D3DKMDT_VPPI_QUINARYIndicates importance level 5.
D3DKMDT_VPPI_SENARYIndicates importance level 6.
D3DKMDT_VPPI_SEPTENARYIndicates importance level 7.
D3DKMDT_VPPI_OCTONARYIndicates importance level 8.
D3DKMDT_VPPI_NONARYIndicates importance level 9.
D3DKMDT_VPPI_DENARYIndicates importance level 10.
As the numeric value of a D3DKMDT_VIDPN_PRESENT_PATH_IMPORTANCE value increases, the importance decreases. For example, level 3 is less important than level 2.
A variable of type D3DKMDT_VIDPN_PRESENT_PATH_IMPORTANCE can have any integer value in the range 0 through 255, but only the values 0 through 10 have names.
It is useful to rank the video present paths in a video present network (VidPN) according to importance. For example, a path that represents the primary view can be assigned a higher importance than other paths so that it gets the best source and target mode sets.
The ImportanceOrdinal member of the D3DKMDT_VIDPN_PRESENT_PATH structure is a D3DKMDT_VIDPN_PRESENT_PATH_IMPORTANCE value. Path importance ordinal numbers are unique within a given VidPN topology.