KSPROPERTY_EXTDEVICE_S structure (ksmedia.h)

The KSPROPERTY_EXTDEVICE_S structure describes an external device and its capabilities.

Syntax

typedef struct {
  KSPROPERTY Property;
  union {
    DEVCAPS Capabilities;
    ULONG   DevPort;
    ULONG   PowerState;
    WCHAR   pawchString[MAX_PATH];
    DWORD   NodeUniqueID[2];
  } u;
} KSPROPERTY_EXTDEVICE_S, *PKSPROPERTY_EXTDEVICE_S;

Members

Property

Specifies an initialized KSPROPERTY structure that describes the property set, property ID, and request type.

u

u.Capabilities

Describes the external device's capabilities.

u.DevPort

Specifies the external device's port. For example:

DEV_PORT_1394

DEV_PORT_USB

u.PowerState

Specifies the external device's power state:

ED_POWER_ON

ED_POWER_STANDBY

ED_POWER_OFF

u.pawchString[MAX_PATH]

Specifies the external device's ID and version.

u.NodeUniqueID[2]

Specifies the external device's unique node Id.

Remarks

Any ED_Xxx or DEV_PORT_Xxx tokens are defined in xprtdefs.h in the Microsoft DirectX SDK.

Requirements

Requirement	Value
Header	ksmedia.h (include Ksmedia.h)

See also

DEVCAPS

KSPROPERTY