DXGK_GENERIC_DESCRIPTOR structure (dispmprt.h)
The DXGK_GENERIC_DESCRIPTOR structure contains descriptive information about a child device of the display adapter.
Syntax
typedef struct _DXGK_GENERIC_DESCRIPTOR {
WCHAR HardwareId[DXGK_MAX_REG_SZ_LEN];
WCHAR InstanceId[DXGK_MAX_REG_SZ_LEN];
WCHAR CompatibleId[DXGK_MAX_REG_SZ_LEN];
WCHAR DeviceText[DXGK_MAX_REG_SZ_LEN];
} DXGK_GENERIC_DESCRIPTOR, *PDXGK_GENERIC_DESCRIPTOR;
Members
HardwareId[DXGK_MAX_REG_SZ_LEN]
A single wide-character string, terminated by two wide NULL characters, that holds the hardware ID of the child device.
InstanceId[DXGK_MAX_REG_SZ_LEN]
A single wide-character string, terminated by two wide NULL characters, that holds the instance ID of the child device.
CompatibleId[DXGK_MAX_REG_SZ_LEN]
A sequence of wide-character strings, each of which is terminated by a single wide NULL character. The last string in the sequence is terminated by two wide NULL characters.
DeviceText[DXGK_MAX_REG_SZ_LEN]
A single wide-character string, terminated by two wide NULL characters, that holds the device text of the child device.
Remarks
The display adapter has two types of child devices: TypeVideoOutput and TypeOther. For child devices of type TypeOther, the display port driver passes a DXGK_GENERIC_DESCRIPTOR structure to the display miniport driver's DxgkDdiQueryDeviceDescriptor function. DxgkDdiQueryDeviceDescriptor must fill in the members of the structure.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista |
| Header | dispmprt.h (include Dispmprt.h) |