ms-office

This is something I ran into last year, and SO seems like a good place to document it :) Q: When automating Excel (/Word/...) from Delphi, how can I check if an Excel function returned the variant Nothing (as it's called in VBA)? Rob Kennedy The VarIsClear function includes your situation where the type is varDispatch and the value is nil . It also includes empty and "unknown" values, and custom variant types. I see it in my Delphi 2005 source; I don't know how much earlier it was included. onnodb Curiously, VBA's Nothing is not the same as Unassigned , Null or Empty , so you can't use, e.g.:

tl;dr When setting CustomProperties to an appointment that has attendees, only the appointment for the organizer gets the CustomProperties . The properties do not propagate to the appointments of the other attendees. Longer version When we create an appointment with multiple attendees and then log in as each attendee, we notice that each ItemId is different. So, it appears that each attendee in a meeting gets their own copy of an appointment. (Would really like someone to confirm this is true). However, when setting a custom property from our add-in (using the Outlook JavaScript API), only the

I have created an office add-in that holds an instance of a WPF Application. When the user clicks buttons on the add-in, I launch different windows by doing the following: MyViewModel viewModel = new MyViewModel(string infoFromOffice); MyWindow view = new MyWindow(); view.DataContext = viewModel; wpfApp.Run(view); In constructing view models before my call to wpfApp.Run() I hit probelms with the current SynchronizationContext later on. The answer here explains why. Is there a better way of launching WPF windows from an office add-in? Arthur Nunes I've never created an Office add-in, but I have

I'm using ApplicationEvents_11_ItemSendEventHandler (see http://msdn.microsoft.com/en-us/library/microsoft.office.interop.outlook.applicationevents_11_itemsendeventhandler.aspx ) to do some processing when an item is sent from Outlook. However, as this event fires on "send", rather than "sent", I'm unable to obtain certain information, such as the sender, sent time etc. Is there an alternative event that fires after the item has actually sent? I've read this blog post; http://easyvsto.wordpress.com/2010/07/27/how-to-save-mail-content-when-a-mail-is-sent-from-outlook/ but I'm wary of depending

Context: A PowerPoint slide in C# has a property Slide.Name (usually contains an arbitrary string value). In my C# application I would like to use this property to identify slides (the slide order is to unreliable). Question: How can I manually set the Slide.Name property in the PowerPoint Application? My problem is very like to the: “ How to name an object within a PowerPoint slide? ” but just on the slide level. Any help would be appreciated. There is no built-in functionality in PowerPoint that allows you to edit the name of a slide. As Steve mentioned, you have to do it using VBA code. The