如何将USB HID输入映射到键盘敲击？

I am a .NET developer, and I want to turn my USB HID device (Mouse, Dance Pad, Guitar or Drums, specially Drums) into a keyboard (with few keys, I know). Do I need to develop this from scratch? Is there any tool that does that? Is there any library that would help me?I am a .NET developer, and I want to turn my US