Mouse and Keyboard Control API

[McByte]

I have a technical question about a challenge that someone may be able to help me with.

The issue is:
I have an Android remote control app that currently can only transmit the image of the mobile device to the controlling Windows client.

I am looking for the ability to remotely control the Android device with a mouse and keyboard as well.

I have heard that this only works with special API's released by the respective device manufacturer.

Can anyone confirm this and if so, how do we get these API's (code)?

Thanks
McByte