There are a number of predefined Doc/View events.

Each event has a corresponding response table macro and handler function signature defined. Note that the Doc/View model doesn't provide versions of these functions. You must declare the functions in your view class and provide the appropriate functionality for each function.

Response table macro	Event name	Event handler	Event
EV_VN_VIEWOPENED	vnViewOpened	VnViewOpened(TView *)	Indicates that a new view has been constructed.
EV_VN_VIEWCLOSED	vnViewClosed	VnViewClosed(TView *)	Indicates that a view is about to be destroyed.
EV_VN_DOCOPENED	vnDocOpened	VnDocOpened(int)	Indicates that a new document has been opened.
EV_VN_DOCCLOSED	vnDocClosed	VnDocClosed(int)	Indicates that a document has been closed.
EV_VN_COMMIT	vnCommit	VnCommit(bool)	Indicates that changes made to the data in the view should be committed to the document.
EV_VN_REVERT	vnRevert	VnRevert(bool)	Indicates that changes made to the data in the view should be discarded and the data should be restored from the document.
EV_VN_ISDIRTY	vnIsDirty	VnIsDirty(void)	Should return true if changes have been made to the data in the view and not yet committed to the document, otherwise returns false.
EV_VN_ISWINDOW	vnIsWindow	VnIsWindow(HWND)	Should return true if the HWND parameter is the same as that of the view's display window.

All the event-handling functions used for these messages return bool.

See Also