UINT BCGM_APPBAR_CALLBACK

application bar notification messages.

Parameters

wParam	notify message code
lParam	message specific

Returns

The return value is ignored.

wParam can be one of the following values:

• ABN_STATECHANGE. lParam is not used
• ABN_FULLSCREENAPP. lParam is TRUE, if a full screen application is opening. FALSE, if the full screen application is closing
• ABN_POSCHANGED. lParam is not used
• ABN_WINDOWARRANGE. lParam If TRUE, if the notification was sent before the arrangements, otherwise - it was called after the arrangements.