多输入设备单屏双独立视图需求：双光标分控不同应用窗口

Got it, let's tackle this exact scenario—you want one split screen, two separate cursors, and each input set controlling its own app (Word on one side, Firefox on the other). Here's how to pull this off on both Windows and Mac:

Windows Solutions #

Option 1: Paid, All-in-One Tool (Multiplicity) #

This is the most straightforward way to get the exact setup you want:

• Install Multiplicity (it’s a paid tool with a free trial to test). It automatically detects all connected input devices (your laptop’s built-in keyboard/trackpad plus the USB set).
• Head to the Device Assignment tab: assign your USB keyboard/mouse to one "session" and your laptop’s built-in hardware to another.
• Use Windows’ native split-screen shortcut: Win + Left Arrow to pin Microsoft Word to the left half of your screen, then Win + Right Arrow to pin Firefox to the right half.
• In Multiplicity’s Window/Region Binding settings, link each session to its respective app’s screen region. Now each input set will only control its assigned window, with separate cursors for each.

Option 2: Free Workaround (Dual User Accounts + Window Manager) #

If you don’t want to pay for software, this combo works:

1. Create two local user accounts on your Windows PC (one for the USB input set, one for the laptop’s built-in hardware).
2. Press Win + L to lock the screen, then switch to the second user—your first user’s session will keep running in the background.
3. Download and install the free version of Actual Window Manager. It lets you display windows from different user accounts on the same screen.
4. Switch back to the first user, open Word, and drag it to the left half of the screen. Switch to the second user, open Firefox, and drag it to the right half. Now each input set controls its own user’s session, so you’ll have independent control over each app.

Mac Solutions #

MultiMouse + Native Split-Screen #

Mac doesn’t have built-in support for this, but MultiMouse fills the gap:

• Install MultiMouse (it’s designed specifically for multi-input device setups on Mac). It will detect both your laptop’s trackpad/keyboard and the USB set, creating separate cursors for each.
• Use Mac’s native split-screen: hold the green maximize button on the Word window, drag it to the left edge of the screen, then select Firefox from the right-side app list to fill the other half.
• In MultiMouse’s settings, bind your USB keyboard/mouse to the Word window and your laptop’s hardware to the Firefox window. Now each input set will only interact with its assigned app, with independent cursors.

Bonus Tip #

If you run into device detection issues, try restarting your computer or re-plugging the USB input devices. For free tools, keep in mind you might have minor limitations (like custom region sizing), but they’ll still meet your core needs.

内容的提问来源于stack exchange，提问作者a25bedc5-3d09-41b8-82fb-ea6c353d75ae