C# Direct3D / DirtectX Ingame Overlay

Hi there, i need a simple ingame overlay for directx games (dx9, 10, 11, maybe 12). this will become a tool for online game streamers. Should be pure managed C#, no matter if injected or sideloaded or whatever, must be able to draw Text, Sprites, Lines, boxes etc (primitives), draw and delete you may use [login to view URL] for this NO external overlay! must be visible on fullscreen games. should be a forms application (later for changing settings etc) this is not too complicated, i tested the linked sample and it works fine but needs some handlers for lines etc. as for i have a lack of free time, i am looking for someone doing it for me. maybe add a option to hide the overlay from obs ([login to view URL]) so only the streamer/host sees the overlay, not the viewers if you understand what i want and you have experience in this matter, please reply with a short text on how you would programm it. generic messages will be ignored.