I need to make a screenshot capture software.

My nationality is Korean and I can not speak English. I am writing this with the help of a Google translator. I hope you understand my writing. I need a dll(C#) to capture DirectX/OpenGL game screen and convert to bitmap. And how to use this in autohotkey. If I can get a bitmap, I can take advantage of that bitmap with the GDIP library in autohotkey. I would like to use this in 32 bit or 64 bit Windows 7~10. ▶The target to capture is as follows. [login to view URL] [login to view URL] [login to view URL]