InvisibleApp.AlertResponse Property (Visio)
Determines whether Microsoft Visio shows alerts and modal dialog boxes to the user. Read/write.
expression A variable that represents an InvisibleApp object.
Certain operations, such as closing a document that has unsaved modifications, cause Visio to display an alert or modal dialog box requesting the user to supply a response such as OK, Yes, No, or Cancel. To prevent Visio from displaying an alert or modal dialog box when a program performs such an action, set the AlertResponse property to a default value for the response. In this case, Visio does not display the alert or modal dialog box; instead, Visio behaves as if the user responded to the alert or modal dialog box with the value of the AlertResponse property.
If the AlertResponse property is 0 (its default value), alerts and modal dialog boxes are displayed.
The values you supply for the AlertResponse property correspond to the standard Windows constants IDOK, IDCANCEL, and so forth.