Send a keystroke to a DirectX application w/o activating it

Question

Is there any way to send a key press to a DirectX application using Windows API without activating its window?
I know there is a solution for simple applications, but DirectX handles this quite different...

The solution is preferred in C++, and libraries are OK.

Thanks!

Answer 1

Using SendInput might work, but DirectX window being not active might cause problems and DirectX application might not understand input correctly. There is code example here.