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Overview |
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Group |
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Quick Info
Windows NT
| No
| Win95
| Yes
| Win32s
| No
| Import Library
| -
| Header File
| dbt.h
| Unicode
| No
| Platform Notes
| None
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DEV_BROADCAST_VOLUME
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.
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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.
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