PHONEEXTENSIONID  CYLLWT

The PHONEEXTENSIONID structure describes an extension ID. Extension IDs are used to identify service provider-specific extensions for phone device classes.

typedef struct phoneextensionid_tag { 

    DWORD  dwExtensionID0;

    DWORD  dwExtensionID1;

    DWORD  dwExtensionID2;

    DWORD  dwExtensionID3;

} PHONEEXTENSIONID, FAR *LPPHONEEXTENSIONID;

Members

dwExtensionID0

dwExtensionID1

dwExtensionID2

dwExtensionID3

These four DWORD-sized fields together specify a universally unique extension ID that identifies a phone device class extension.

Remarks

No extensibility.

Extension IDs are generated using an SDK-provided generation utility.