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DEV_BROADCAST_HDR info  Overview  Group

The DEV_BROADCAST_HDR structure contains information about the device affected by a WM_DEVICECHANGE message.

typedef struct _DEV_BROADCAST_HDR {
ULONG dbch_size;     ULONG dbch_devicetype;     ULONG dbch_reserved; } DEV_BROADCAST_HDR;
typedef DEV_BROADCAST_HDR *PDEV_BROADCAST_HDR;

Members

dbch_size
Size of this structure, in bytes.
dbch_devicetype
Type of device. Can be one of these values:

Value

Meaning

DBT_DEVTYP_OEM

OEM- or IHV-defined device type.

DBT_DEVTYP_VOLUME

Logical volume.

DBT_DEVTYP_PORT

Port device (serial or parallel).

dbch_reserved
Reserved; do not use.

See Also

WM_DEVICECHANGE 

See also:


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