DEV_BROADCAST_HANDLE

The DEV_BROADCAST_HANDLE structure contains information about a file system handle.

typedef struct _DEV_BROADCAST_HANDLE {
  DWORD dbch_size; 
  DWORD dbch_devicetype; 
  DWORD dbch_reserved; 
  HANDLE dbch_handle; 
  HDEVNOTIFY dbch_hdevnotify; 

  // The following are valid only for DBT_CUSTOMEVENT
  GUID dbch_eventguid;
  LONG dbch_nameoffset;
  BYTE dbch_data[1];
} DEV_BROADCAST_HANDLE *PDEV_BROADCAST_HANDLE;

Members

dbch_size

Specifies the size, in bytes, of this structure.

dbch_devicetype

Set to the DBT_DEVTYP_HANDLE device type.

dbch_reserved

Reserved; do not use.

dbch_handle

Handle specified in the call to the RegisterDeviceNotification function.

dbch_hdevnotify

Handle to the device notification. This handle is returned by the RegisterDeviceNotification function.

dbch_eventguid

Specifies a globally unique identifier (GUID) for the custom event.

dbch_nameoffset

Specifies the offset of an optional string buffer.

dbch_data

Optional binary data.

Requirements

  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 98.
  Header: Declared in Dbt.h.

See Also

Device Management Overview, Device Management Structures, DEV_BROADCAST_HDR, WM_DEVICECHANGE