DBT_CONFIGCHANGECANCELED event

The system broadcasts the DBT_CONFIGCHANGECANCELED device event when a request to change the current configuration (dock or undock) has been canceled.

To broadcast this device event, the system uses the WM_DEVICECHANGE message with wParam set to DBT_CONFIGCHANGECANCELED 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_CONFIGCHANGECANCELED.

lParam

Set to zero.

Return value

Return TRUE.

Requirements

See also

Device Events

Device Management Events

WM_DEVICECHANGE