Rendering text into the game?

Question

C++ / C#

Hi all.
There is a game: GTA SA (DirectX 9). I want to show the player text, my menu, a picture, etc. on top of it. in C++ of course. I couldn't find any tutorial on the internet how to do it. Only about the fact that you need to intercept the rendering and add your own there. And how to actually do it? In general, there is no normal tutorial on the Internet on how to work with DirectX, if anyone knows, please send a link.

Answer 1

I can say the general version: text, menus and other hud are rendered into a separate buffer. Then the data from this buffer (with transparency if necessary) is superimposed on the buffer already rendered by the engine. Laid down at the very last moment. This is how they do it in simple games.
PS Here is a project that will help to do it using DX11: https://github.com/petrgeorgievsky/gtaRenderHook