How would I go about creating a "gamepad" which appears to DirectInput applications as a normal game controller but the state of its controls is actually defined by software?
5 Answers
I know it is an old question but for anyone which is interested in this topic it is also worth looking at this project called ViGEm.
You can emulate some well known gamepads like Microsoft Xbox 360 Controller, Sony DualShock 4 Controller and Microsoft Xbox One Controller. The project offers also some API to interact with these virtual controllers. E.g. the C# API can be found here
The simplest solution I found was using vJoy and its C# wrapper. You need to download the vJoy driver from here.
You can use the vJoy SDK for implementing a feeder program: https://github.com/njz3/vJoy/tree/master/SDK/c%23
Use the C# starter project for this, or simply add the two .dll-s to your existing project as references from the x86 or x64 folder.
You can find instructions on how to use the api in the readme.odt file.
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