The operating system sends the DBT_CONFIGCHANGECANCELED device message when a request to change the current configuration (dock or undock) has been canceled.
To send the DBT_CONFIGCHANGECANCELED device message, the operating system sends the WM_DEVICECHANGE message with wParam set to DBT_CONFIGCHANGECANCELED and lParam set to zero.
Return TRUE.
DBT_CONFIGCHANGED, DBT_QUERYCHANGECONFIG, WM_DEVICECHANGE
file: /Techref/os/win/api/win32/mess/src/msg03_19.htm, 1KB, , updated: 2000/4/7 11:19, local time: 2024/11/23 13:57,
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