I want an app that let me control the mouse cursor on my computer using a mouse connected to my Android device without having to touch or drag on the screen to move it, i.e., when I see the mouse cursor move on my Android device, it is also moving on my computer. I don't need a normal app where you use your mobile as a touch pad. I need an app that uses the mouse pointer on my mobile (which appears when I connect a mouse to my mobile) to control the mouse pointer on my computer.
If there is nothing like that, can someone recommend me an open-source PC remote application so I can try to implement this myself? Because it is very hard to make one from scratch.