DBT_CONFIGCHANGED event
The system broadcasts the DBT_CONFIGCHANGED device event to indicate that the current configuration has changed, due to a dock or undock. An application or driver that stores data in the registry under the HKEY_CURRENT_CONFIG key should update the data.
To broadcast this device event, the system uses the WM_DEVICECHANGE message with wParam set to DBT_CONFIGCHANGED and lParam set to zero.
LRESULT CALLBACK WindowProc( HWND hwnd, // handle to window UINT uMsg, // WM_DEVICECHANGE WPARAM wParam, // device-change event LPARAM lParam // event-specific data );
Parameters
- hwnd
-
A handle to a window.
- uMsg
-
The WM_DEVICECHANGE message identifier.
- wParam
-
Set to DBT_CONFIGCHANGED.
- lParam
-
Set to zero.
Return value
Return TRUE.
Requirements
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Minimum supported client | Windows XP |
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Minimum supported server | Windows Server 2003 |
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Header |
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See also
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