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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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DBT_QUERYCHANGECONFIG
The operating system sends the DBT_QUERYCHANGECONFIG device message to request
permission to change the current configuration (dock or undock). Any
application can deny this request and cancel the change.
To send the DBT_QUERYCHANGECONFIG device message, the operating system sends
the
WM_DEVICECHANGE message with
wParam set to DBT_QUERYCHANGECONFIG and
lParam set to zero.
Parameters
lParam
lParam is zero when the WM_DEVICECHANGE message is sent with
wParam set to DBT_QUERYCHANGECONFIG.
Return Values
Return TRUE to grant permission to change the configuration.
Return BROADCAST_QUERY_DENY to deny permission to change the configuration.
See Also
DBT_CONFIGCHANGECANCELED,
DBT_CONFIGCHANGED,
WM_DEVICECHANGE
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