DXGK_CHILD_DEVICE_HPD_AWARENESS enumeration (d3dkmdt.h)
The DXGK_CHILD_DEVICE_HPD_AWARENESS enumeration is used to describe the hot plug capabilities of a child device of a display adapter.
Syntax
typedef enum _DXGK_CHILD_DEVICE_HPD_AWARENESS {
HpdAwarenessUninitialized,
HpdAwarenessAlwaysConnected,
HpdAwarenessNone,
HpdAwarenessPolled,
HpdAwarenessInterruptible
} DXGK_CHILD_DEVICE_HPD_AWARENESS, *PDXGK_CHILD_DEVICE_HPD_AWARENESS;
Constants
HpdAwarenessUninitialized Indicates that a variable of type DXGK_CHILD_DEVICE_HPD_AWARENESS has not yet been assigned a meaningful value. |
HpdAwarenessAlwaysConnected Indicates that the child device is always connected; that is, it does not serve as a connector for external devices. |
HpdAwarenessNone Reserved for system use. You should not use this value. |
HpdAwarenessPolled Indicates that the display miniport driver is able to determine whether an external device is connected to the child device by polling the child device. |
HpdAwarenessInterruptible Indicates that the child device is able to generate an interrupt when an external device is connected or disconnected. |
Remarks
The ChildCapabilities member of a DXGK_CHILD_DESCRIPTOR structure is a DXGK_CHILD_CAPABILITIES structure. The HpdAwareness member of a DXGK_CHILD_DEVICE_HPD_AWARENESS structure is a DXGK_CHILD_CAPABILITIES structure.
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows Vista |
Header | d3dkmdt.h |