What library can be used to draw a window of an arbitrary shape?

Question

C++ / C#

Hello, you need to draw a window in the form of a spot, and place the buttons inside. Is something from GLFW, SDL, SFML suitable? PS Also key input will need to be processed.

Answer 1

Depends on the task. If a simple graphical interface, then QT is enough. If you need high performance, then you can take the mentioned SDL2.