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DEV_BROADCAST_VOLUME info  Overview  Group

The DEV_BROADCAST_VOLUME structure contains information about a logical volume.

typedef struct _DEV_BROADCAST_VOLUME {
ULONG dbcv_size;     ULONG dbcv_devicetype;     ULONG dbcv_reserved;     ULONG dbcv_unitmask;     USHORT dbcv_flags; } DEV_BROADCAST_VOLUME;
typedef DEV_BROADCAST_VOLUME *PDEV_BROADCAST_VOLUME;

Members

dbcv_size
Size of this structure, in bytes.
dbcv_devicetype
DBT_DEVTYP_VOLUME.
dbcv_reserved
Reserved; do not use.
dbcv_unitmask
Logical unit mask identifying one or more logical units. Each bit in the mask corresponds to one logical drive. Bit 0 represents drive A, bit 1 drive B, and so on.
dbcv_flags
Flags indicating whether drive or media.

Value

Meaning

DBTF_MEDIA

Change affects media in drive. If not set, change affects physical device or drive.

DBTF_NET

Indicated logical volume is a network volume.

Remarks

Although the dbcv_unitmask member may specify more than one volume in any given message, this does not guarantee that only message is generated for a given event. Multiple system components may independently generate messages for logical volumes at the same time.

See also:


file: /Techref/os/win/api/win32/struc/src/str03_17.htm, 2KB, , updated: 2000/4/7 12:20, local time: 2022/5/16 08:25,
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