Customise Outlook Address Book using c# - outlook

How to add button ,image,textbox in Outlook Address Book using C# Plugin

Outlook Address Book window is not customizable.

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VSTO Outlook: Remove title bar from custom task pane

Is it possible to remove or hide the title bar from an Outlook custom task pane? If so how. If not, maybe using a hack? Using a hack, how?
There is no trivial way of getting the job done. The Outlook extensibility model doesn't provide anything for that.
You can try using Windows API functions for subclassing Outlook windows and injecting your own form in Outlook using the SetWindowsHookEx function. Read more about that in the Hooks Overview article. This technology is called adjucent windows in Outlook.
Also you may take a look at Advanced Outlook view and form regions from Add-in Express.

Outlook Add-in - Dynamic Control Button Highlight On Click

I developed an add-in built with yo generator (Node.js) that works as a configurator which enables the outlook compose to enable/disable sending a copy of the new email to a custom url on-send.
There's a control button added that says 'Toggle Send to cCRM' but I would prefer a toggle text dynamically from 'Enable send to cCRM' to 'Disable send to cCRM' and vice-versa when clicking the control button to improve UI experience. Is it possible to accomplish?
Nope. Toggle buttons as well as callbacks are not supported in web add-ins. See Control types for more information.
Feature requests on Tech Community are considered, when the dev team go through the planning process. Use the github label: “Type: product feature request” at https://aka.ms/M365dev-suggestions .
Currently the feature to dynamically change the icon in the ribbon, you requested, is not a part of the product. We track Outlook add-in feature requests on our Tech Community Page. Please submit your request there and choose the appropriate label(s). Feature requests on Tech Community are considered, when we go through our planning process.

How to add custom button in outlook mail page and outlook calendar page using outlook add-ins manifest file?

In outlook mail , mail read page and calendar page , i want to add a custom button using outlook add-ins manifest file
if i install outlook add-ins this button will be show on that places
Any extension point is there for custom button add , I want trigger some function in outlook add-ins after click that custom buttons
it is possible or not , The outlook mail support for add custom button using outlook add-ins
please suggest me
Currently the feature you requested, is not a part of the product. We track Outlook add-in feature requests on our Tech Community Page. Please submit your request there and choose the appropriate label(s). Feature requests on Tech Community are considered, when we go through our planning process.

Office Add-in Ribbon - Checkbox

I'm working on an Outlook 365 Add-in. I have a working Manifest XML that shows an icon with the icon responding to a function click. How would I go about adding a checkbox to the compose new email ribbon to the right of the button similar to the example below? I know how to do this VSTO, but looking how to do this using the Office 365 Add-in Javascript implementation. Thanks for any help!
The developer wants to create a ribbon button with checkboxes on it. Unfortunately - this is not possible through office-js manifests.
You can check the add-in commands (ribbon buttons for office-js) documentation from here: https://github.com/OfficeDev/office-js-docs-pr/blob/master/docs/design/add-in-commands.md
From the documentation:
Control types
Simple buttons - trigger specific actions.
Menus - simple menu
dropdown with buttons that trigger actions.
That capability doesn't exist today in office-js framework.

How i can add button to main menu not inside message

How to add button to main menu behind "Mark all as read"
instead of showing button inside email body read document but it doesn't help me to find solution,
You cannot get your add-in icon displayed in any place you like. The add-in controls are defined by manifest and displayed in predefined locations of particular client (Outlook Web, Outlook desktop for Windows or Mac, Mobile). Up to developers (Microsoft team) to define the place where the add-in controls will be displayed.
EDIT:
There are two places where add-ins may appear in the client interface. This depends on what type of add-in you have created. There are command add-in and contextual add-in. Both of them will appear somewhat in the space of the message view anyway. The following are examples of where they appear withing the interface ...
And for web view ...
To read more on Outlook add-ins Extension points got to Outlook Add-ins overview article.
Currently the feature you requested is not a part of the product. However, we track Outlook add-in feature requests on our user-voice page. Please add your request there. Feature requests on user-voice are considered when we go through our planning process.

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