Screen Streaming in a LAN Network

Low latency

Sending only changed tiles over UDP minimizes latency and link load.

Stable connection

HELLO/WELCOME and PING/PONG keep the session registered and alive on LAN.

Encrypted communication

All data (image, commands, files, clipboard) between server and clients is encrypted with AES for secure transmission.

Remote control

Mouse and keyboard emulation on the client side, including mouse-wheel scrolling.

Image tiling

Changes detected per-tile — significant bandwidth savings on static scenes.

Screenshots & recording

Quickly save a JPG screenshot and record MP4 video of activity on the remote computer.

DPI aware UI

The interface scales to the resolution and pixel density of workstations.

Headless Mode

The app can run headless (-silent) with no window or taskbar icon. The client automatically logs the user in (based on system username and host) and starts streaming to the server without interaction.

Remote screen lock

Lock a single client screen or all at once. Handy during classes and tests.

Remote shutdown

Shut down all computers at once from the teacher’s menu — finish classes quickly.

Secure Desktop detection

The teacher gets a clear notice when a client switches to Secure Desktop (e.g., installer or UAC prompt).

Paste text

Send text directly from the server clipboard to the client — up to 8,000 characters.

File transfer

The teacher can send files directly to a student’s computer, saved automatically in the “Downloads” folder. Files can also be delivered to all students at once, which is perfect for distributing materials or assignments. The transfer progress is shown in the status bar, and students receive a notification when the download is complete. Just like with remote screen control, file transfers do not require any confirmation from the student.

Teacher Screen Casting

The instructor can broadcast their screen (a window or the entire desktop) to all student computers in real time. The image automatically scales to the students’ screen resolutions, and the transmission uses UDP to ensure minimal latency.

New: student computers now include a Text Extraction from Image (OCR) feature — with a single click, users can extract text from the currently displayed slide and copy it to the clipboard or save it (supports PL/EN languages, processed locally).

Raise Hand

A student can raise their hand with a single click in the application (“Raise Hand”). The teacher instantly receives a notification with the student's name and can open or maximize the student's screen view to quickly assist with the reported issue.

List of running applications

The teacher can view, in real time, the list of windowed applications running on a student's computer – without interrupting their work. This feature allows for quick verification of whether the student is using only tools related to the class.

Additionally, an advanced full-text filtering mechanism has been implemented, enabling precise application searches (e.g., using required terms, exclusion operators, and phrases). Based on this, potential misuse can be detected.

When specific filter conditions are met, the module can automatically open the preview window of the selected student, allowing the teacher to respond immediately.

Smart Student Search

The software allows lecturers to quickly find students even when a typo is made in a first name or surname. The search engine also supports transliteration, making it possible to find students by entering their names using the Latin alphabet, even if they are stored in the system using Cyrillic characters.

The list of currently connected students can be exported to a TXT file, making it useful for attendance tracking, participant record keeping, and administrative documentation.

Receiving Files and Folders from Students

The software enables instructors to receive files and entire folders from multiple students simultaneously. All received data is automatically organized and stored on the instructor's computer in a well-structured folder hierarchy, making it easy to collect assignments, laboratory work, projects, and other course materials.

A built-in transfer monitor displays the progress of incoming files in real time, allowing instructors to track the transfer process with ease. The software also prevents previously received materials from being overwritten by automatically creating new folders for subsequent submissions.

Connection using a configuration code

The teacher can generate a unique configuration code and share it with students. After entering the code, the client application automatically connects to the correct server, without the need to manually configure network settings.

This solution allows both teachers and students to use their own laptops during classes. The program does not require static IP addresses, so it also works in networks using dynamic address configuration (DHCP).

Working with multiple networks simultaneously

The software can listen simultaneously on multiple network interfaces of the instructor's computer. This means that the instructor is not limited to a single network and can simultaneously manage students connected through different network interfaces.

For example, the instructor's computer can be connected by cable to the network in a computer lab while simultaneously providing its own Wi-Fi hotspot for students using their personal laptops. Students from both networks can connect to the instructor's software at the same time, allowing the instructor to view and control their screens within a single session.