Check if GetActiveObject() actually returns anything.

#1379
phw198 · Feb 5, 2022 · d540b98 · d540b98
1 parent 9fc14fa
commit d540b98
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/OutlookGoogleCalendarSync/OutlookOgcs/OutlookCalendar.cs b/src/OutlookGoogleCalendarSync/OutlookOgcs/OutlookCalendar.cs
@@ -969,6 +969,8 @@ public static void AttachToOutlook(ref Microsoft.Office.Interop.Outlook.Applicat
                 log.Info("Attaching to the already running Outlook process.");
                 try {
                     oApp = System.Runtime.InteropServices.Marshal.GetActiveObject("Outlook.Application") as Microsoft.Office.Interop.Outlook.Application;
+                    if (oApp == null)
+                        throw new ApplicationException("GetActiveObject() returned NULL without throwing an error.");
                 } catch (System.Exception ex) {
                     if (OGCSexception.GetErrorCode(ex) == "0x800401E3") { //MK_E_UNAVAILABLE
                         log.Warn("Attachment failed - Outlook is running without GUI for programmatic access.");