Posts Tagged ‘Outlook’
Add-in Express and Windows hooks
Andrei Smolin | July 27th, 2021
Once in a couple of years Microsoft contacts us on this or that topic. The last topic was the Excel performance on Windows Desktop. They demonstrated a case where enabling an Add-in Express add-in produced an astounding 90-second delay when selecting another cell while Excel was busy with some long calculation... Read the rest of this entry →
Inner details of DPI scaling in Office COM add-ins
Andrei Smolin | June 17th, 2021
Today, I’m following Microsoft recommendations and using code fragments they provide to investigate the behavior of a System.Windows.Forms.Form (simply a form)... Read the rest of this entry →
Office COM add-ins and DPI awareness: research and analysis
Andrei Smolin | June 10th, 2021
In the first blog of this series, I showed issues related to using several monitors with different DPIs. To get an explanation of those pretty confusing results, let’s check resources available on the web.... Read the rest of this entry →
Issues with Windows mutli-DPI scaling and Office COM add-in panes and forms
Andrei Smolin | May 25th, 2021
Quite often these days you see this configuration: a notebook and an external display or two connected to the notebook. All these displays may have different DPIs. This is a typical environment where DPI-related issues reveal themselves. ... Read the rest of this entry →
Releasing COM objects: Garbage Collector vs. Marshal.RelseaseComObject
Andrei Smolin | July 20th, 2020
Just recently we've got a comment declaring one of our blogs on releasing COM objects "wrong and misleading": the author says Marshal.ReleasingComObject() and related things made him spend "lots of time on writing code that is totally unnecessary" and provides many links supporting the idea that you can use GC.Collect() to get rid of non-released COM objects.... Read the rest of this entry →
New version of Add-in Express sample COM add-in projects
Andrei Smolin | July 1st, 2020
Quick news: we've developed a new version of sample COM add-in projects that we provide in the downloadable archive on the Add-in Express .NET Downloads page... Read the rest of this entry →
How to solve synchronization conflict when modifying Outlook item in ItemAdd event
Andrei Smolin | February 26th, 2020
I see this issue in the Sent Items folder on an Exchange account having Cached Exchange Mode turned on. Reportedly, turning the Cached Mode off solves the issue. The Outlook version used (Outlook 365 in my case) seems to be irrelevant as Google reports a similar conflict to occur in Outlook 2007... Read the rest of this entry →
Version 9 of Security Manager for Microsoft Outlook is released!
Dmitry Kostochko | October 26th, 2018
Microsoft Office 2019 has been around for a few weeks, and Security Manager is the first of our products to support it. The details follow below... Read the rest of this entry →
Large Address Aware in Outlook 2016
Andrei Smolin | December 19th, 2017
You might have heard of a recent update of Microsoft Outlook 2016 (LAA) that increased the memory available for Outlook from 2GB to 4GB. We've started receiving questions about how to deal with it. This blog is an answer... Read the rest of this entry →
Outlook 2010 – 2016 doesn’t let you set WebViewUrl and WebViewOn
Andrei Smolin | December 1st, 2017
We’ve started a new line of blogs to inform Office and Add-in Express developers about problems and solutions related to Microsoft Office and/or Add-in Express products as early as possible... Read the rest of this entry →
How to customize the appearance of advanced task panes and Outlook regions
Alexander Solomenko | May 31st, 2016
Starting with version 8.2, Add-in Express began to open its internal infrastructure, which allows developers to customize some areas of advanced Excel, Word and PowerPoint task panes and Outlook regions. In the new release, it becomes possible to customize the header together with its controls as well as splitter and border. You can also modify the appearance of a minimized region, control the header visibility, change padding, get HitTest info and more... Read the rest of this entry →
The Office 365 API – OneDrive / Files API
Pieter van der Westhuizen | July 31st, 2015
The article demonstrates how to create an Outlook add-in that integrates with OneDrive for Business and gives your users the ability to attach a file to an email directly from OneDrive... Read the rest of this entry →
Office context menu add-in for Excel, Outlook, Word, PowerPoint
Andrei Smolin | April 15th, 2015
The blog is about an add-in (with the source code) that adds a button to all context menus of Excel, Outlook, PowerPoint, Project, Publisher, Visio and Word in Office 2010-2013. The button shows the name of the context menu.... Read the rest of this entry →
How to determine when a user has read an Outlook message
Pieter van der Westhuizen | March 5th, 2015
In this article, we'll look at how to determine when a user has read an Outlook mail message. We will create an Outlook add-in that illustrates the various methods of responding to the the fact that a user has read an e-mail in Outlook... Read the rest of this entry →
Working with Outlook HTMLBody – a guide for Office developers
Pieter van der Westhuizen | February 23rd, 2015
If you've ever tried to design an attractive and somewhat complex e-mail message using Microsoft Outlook and HTML, chances are you very quickly realized that the Outlook mail message body format performs rather differently than a normal web browser... Read the rest of this entry →
How to get unread mail in Outlook: C# code examples
Pieter van der Westhuizen | January 29th, 2015
Finding and filtering items in Outlook can be done in a variety of ways and in this article we'll focus on ways to retrieve unread mail from Outlook... Read the rest of this entry →