RegionMirror

Name: RegionMirror
Price: 19.99 USD
Availability: InStock
Rating: 5.0 (1 reviews)
Author: RegionMirror

How Do I Share Only Part of My Ultrawide Monitor in Teams?

Picture this: You're presenting in a Teams™ call from your beautiful ultrawide monitor. Five minutes in, someone asks "Can you zoom in? I can't read anything." You scramble to share just one window instead. Then you need to show your browser. Stop sharing. Find the window. Share again. Awkward silence. Your flow is broken.

What's the Problem with Sharing Ultrawide Screens in Video Calls?

When you share an entire ultrawide monitor (like a 49-inch 5120x1440 display) in video calls, the content appears too small for viewers on standard monitors. This is the core problem that RegionMirror solves.

Sound familiar? RegionMirror to the rescue! RegionMirror allows you to share a portion of the screen at a resolution of your choosing using the "Share Window" functionality of Microsoft Teams™, Slack™, Discord™, etc. The shared region can be resized and moved as needed while sharing to capture the applications you want to share. No need to stop sharing to switch between windows, simply drag windows in and out of the shared region as needed!

Perfect for Remote Collaboration

RegionMirror isn't just for ultrawide screen sharing, it also provides a consistent toolset that can be used no matter which collaboration tool is in use. This includes the ability to draw annotations, use a whiteboard, or blur the screen. That meeting that was scheduled by someone using an unfamiliar collaboration tool? No more fumbling around trying to remember where the tools are- use RegionMirror tools across all your meetings!

Core Capabilities

🎯 Precise Region Selection

RegionMirror's precise region selection feature allows you to draw a custom rectangular area on your ultrawide monitor screen. You can define the shared region as large or small as needed to match your presentation requirements. The region can be resized and moved dynamically during active screen sharing sessions without interrupting your presentation or requiring you to stop and restart the sharing process. This solves the common problem of sharing an entire ultrawide screen where content appears too small for viewers on standard monitors.

🖥️ Multi-Display Support

RegionMirror supports multiple monitor setups, allowing you to place the shared region on any of your connected displays. Whether you're using a dual monitor configuration or have multiple external displays connected to your Mac, you can choose which screen to share from. The shared region can be moved to a different screen position even while sharing is active, giving you complete flexibility during presentations. This is particularly useful for users with complex multi-monitor workstations who need to share content from specific displays.

👁️ Presenter View

The Presenter View feature provides a scaled-down preview of what your audience is seeing in the shared region. This allows you to keep the main mirror window positioned off-screen (to maintain screen real estate) while still being able to monitor exactly what content is being shared. The presenter view shows a smaller, manageable version of the shared region, making it easy to verify that your presentation content is visible and properly formatted for your audience. This feature is essential for maintaining presentation flow without constantly checking the main mirror window.

🔒 Privacy Protection

RegionMirror's privacy protection feature allows you to instantly blur the shared screen for all participants while you input sensitive information such as passwords, personal data, or confidential content. With a single click, you can protect your privacy during screen sharing sessions without having to stop sharing or switch windows. This feature is particularly valuable when you need to access private information during a presentation, ensuring that sensitive data remains hidden from viewers while maintaining the flow of your presentation.

✏️ Smart Annotations

RegionMirror includes smart annotation tools that allow you to add arrows and text annotations directly onto your shared screen. These annotations are fully moveable and resizable, giving you complete control over how you highlight and emphasize important information during your presentations. Unlike platform-specific annotation tools that vary between Microsoft Teams, Zoom, and Slack, RegionMirror's annotations work consistently across all collaboration platforms, providing a unified presentation experience regardless of which tool your meeting uses.

📝 Integrated Whiteboard

The integrated whiteboard feature provides a comprehensive drawing and annotation workspace within RegionMirror. You can draw shapes, lines, add text, and create freeform content directly on your shared screen. All whiteboard elements including shapes, lines, and text boxes are moveable and resizable, and text can be edited after creation. This whiteboard functionality works consistently across all collaboration platforms, eliminating the need to search for platform-specific whiteboard tools during meetings. Whether you're brainstorming, explaining concepts, or illustrating ideas, the whiteboard is always accessible and ready to use.

How to Use RegionMirror

Choose Share Region

From the menubar or app icon, choose the Share Region on the desired display.

RegionMirror menu interface showing how to select Share Region option for ultrawide screen sharing on macOS

Draw Your Region

Draw a region on the selected monitor and click within the region to begin sharing.

RegionMirror interface demonstrating how to draw a custom rectangular region on ultrawide monitor for screen sharing

Position Your Apps

Drag windows into the shared region. Arrange your applications exactly where you need them.

RegionMirror showing how to drag and position application windows within the shared region on ultrawide monitor

Share the Window

Share the window from your collaboration tool. The window will always be outlined in a green frame with the title "Share this window!".

RegionMirror share window with green frame border indicating the region ready to share in Microsoft Teams, Zoom, or Slack

Use Additional Tools

Presenter View

From the menu bar or dock icon, select Show Presenter View. Resize and/or move as needed.

RegionMirror annotation tools showing arrow and text annotation features for screen sharing presentations

Annotations

Turn the slider on the toolbar to on, and select the arrow or text tool.

RegionMirror privacy feature demonstrating screen blur functionality to protect sensitive information during screen sharing

Blur Screen

Click the blur icon to protect sensitive information during presentations.

Whiteboard

Click the whiteboard icon on the toolbar, and select from the available tools.

Download RegionMirror

Get RegionMirror from the Mac App Store and start sharing your ultrawide screen like a pro.

Available now on the Mac App Store

Frequently Asked Questions

How do I share only part of my ultrawide monitor in Teams?

RegionMirror allows you to share a specific region of your ultrawide monitor in Microsoft Teams. Simply draw a rectangle on your screen at the resolution you want, then use Teams' "Share a window" feature to share the RegionMirror window. You can resize and move the shared region during your presentation without stopping the share, making it perfect for dynamic presentations.

What's the best screen sharing solution for 49 inch ultrawide monitors?

RegionMirror is specifically designed for ultrawide monitors like 49-inch displays. It solves the common problem where sharing the entire ultrawide screen makes content appear too small for viewers. With RegionMirror, you can share specific regions at optimal resolutions, making it the ideal solution for 49-inch and other ultrawide monitor users who need to present effectively in video calls.

Can I share a portion of my screen during presentations?

Yes! RegionMirror is built specifically for sharing custom regions of your screen. You can draw a rectangle anywhere on your display, resize it, and move it during your presentation. This is perfect for focusing on specific content while keeping other applications private. The shared region works seamlessly with Microsoft Teams, Zoom, Slack, Discord, and other collaboration tools.

What's the problem with sharing ultrawide screens in video calls?

When you share an entire ultrawide monitor (like a 49-inch 5120x1440 display) in video calls, the content appears too small for viewers on standard monitors. This leads to "can you zoom in?" requests and breaks presentation flow. RegionMirror solves this by letting you share specific regions at resolutions that work perfectly for your audience, eliminating the need to constantly adjust or switch between windows.

Where is the actual window that is being mirrored?

It is positioned just off screen, you should see the edge of the green frame around it at the very edge of the screen. If needed, you can bring it into view. However, resizing is discouraged because it will impact the quality of the mirrored image received by the meeting participants.

Why have a separate Presenter View?

It presents a scaled view of what is being shared, so that we can keep the mirror window off screen. Depending on the size of the shared region, the mirror view may not fit on the screen. The presenter view provides a way to see what is being shared at a smaller size, rather than relying on the mirror window which may not fit on the screen with the shared region.

How do I share the region with Google Meet™?

In this case you will need to locate the mirror window and drag it into view temporarily in order to click the "Share Window" button that appears overlayed on top of the window. You may then move it back off screen.