On-Screen Overlay for Gameplay Recording

Hello, there!

There is a program for recording gameplay in computer games.

Now, as you can see, when you press the recording button, the sound signal is triggered.

I need a graphic signal instead. Very simple: during the program operation, a shortcut (say, a green dot) is located in the upper right corner. The user presses the record button, the dot turns red. The unloading is completed - the sphere is again green. By the same principle, for example, in the Fraps program, an FPS counter is demonstrated.

I would be especially happy to cooperate if you have already had experience in such a development, so we will save each other time.

Thank you!