How to use your phone's touch screen as the trackpad of your PC?

So have you seen the video of Microsoft Lumia 940 XL? One of the features of that phone is that it can be used as a real world PC by simply connecting it to a monitor. We can add wireless keyboard, mouse etc for its complete usability. However in cases, when you haven't any extra devices, you can still use the phone itself as the mouse.

Just move your finger on the touch screen and the cursor moves.

You can do it on your Android phone too. All that one needs is PC Remote app.
You can download it from the Play Store for your mobile device, then you have to install its server on the PC. Both the tools are available on the official website.

You can use it as joystick too for gaming.

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