Original link: https://mianao.info/2022/06/28/363505
There are desktops and laptops in the office, it is more troublesome to switch back and forth between the keyboard and the mouse, and I don’t like to use the small keyboard of the laptop.
I found software for keyboard and mouse sharing, many of which are paid, but I think Mouse Without Borders is the best one for free.
From Microsoft:
Download from Microsoft’s official website: https://www.microsoft.com/en-us/download/details.aspx?id=35460
Mouse Without Borders , also known as the unbounded mouse, can control up to four computers with one set of keyboard and mouse, and can copy and paste across screens, copy files, take screenshots, etc. Of course, the premise is that the four computers are in the same LAN.
I won’t talk about the installation, it’s simple, and there is a search on the Internet, mainly to write about the settings.
connect
Computer A selects the master node NO, computer B selects the slave node YES, the master node will issue the password and name, fill in the two information to the slave node, and click LINK.
If there is no problem with the network connection, the pairing is successful, and the mouse can switch screens. 
When the left and right switching order of several computer screens does not conform to your usage habits, you can click and drag the computer icons here to move the placement order. 
Of course, if you choose the mouse cycle switch, there is no such problem.
set up
- The mouse cycles through the screen;
- Shared clipboard, including copying files (limit 100MB);
- Hide the login interface logo;
- The mouse is hidden at the edge of the screen;
- Display the cursor (used when it may not be visible under win8);
- Verify the remote IP address;
- same subnet only;
- Disable ctl+alt+del login;
- Disable other computer screensavers;
- Move the mouse relatively, when the slave node monitor is set to different or multiple monitors;
- Forbid the switching of the four corners of the screen;
- Use key mapping (not used, how to use the mapping depends on the official documentation);
- Display copy and network notification information;
- Switch directly to the specified screen shortcut;
- set shortcut keys;
- All device lock screen shortcut keys;
- Reconnect device shortcuts;
- Take a screenshot of the current host screen shortcut (the screenshot will be shared in the desktop folder);
- Exit application shortcut;
- Global control mode shortcut keys;
- The mouse is limited to the screen enable (it will automatically change when pressing the switch shortcut);
- Switch to lock the mouse screen range shortcut keys (temporarily lock the mouse on the current screen, do not switch to other computer screens);
IP mapping
IP mapping is generally not used. Usually, the host name is used to establish a connection. If the resolution fails unfortunately, you can only manually fill in the host name and IP address mapping to try.
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