ThisAddin class
The ThisAddin_Startup() event is a good place to test for the correct Visio version and edition, along with checking that the Visio application events are indeed enabled, otherwise this add-in will not work properly anyway.
private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
try
{
veApplication.VisioApplication = this.Application;
/* check prereq's */
// check for Visio >= 2010 and Edition >= PRO
if (!this.IsVisio14PremiumInstalled)
{
MessageBox.Show(
"This add-in requires the Premium edition of Visio 2010", "Visio Premium edition required", MessageBoxButton.OK, MessageBoxImage.Exclamation);
return;
}
// events must be enabled
if (!Convert.ToBoolean(Globals.ThisAddIn.Application. EventsEnabled)) // -1 is TRUE, 0 is FALSE, typically anything other than 0 is TRUE
{
if (MessageBox.Show(
"Event are currently disabled, this add-in requires events to be enabled. Would you like to enable events now?",
"Rules Tools", MessageBoxButton.OKCancel, MessageBoxImage...
