Graphics using Standard C++ only?

Question

I just want to know whether Standard C++ allows GUI programming?

There are 2 aspects of this:

1. Widgets for UI like window, dialog, push button, etc
2. Graphics like drawing circle, rectangle, spline, etc

I have been using Qt for my UI & haven't seen anybody doing GUI in C++ only.

PS: I am concerned with C++ language only, I know that Java allows GUI programming!

UPDATE: A new question was added here: How frameworks like Qt create GUI, if C++ has no functionality for that?

Answer 1

No, this isn't possible. C++ works on many devices, some of which simply don't have that capability.

Qt can do this, usually because the Operating Systems on which it runs do offer that functionality. It's usually exposed as a set of C functions, which in practice means they're callable by the C++ code in Qt. What the OS uses internally, who knows. It may even leave some of the work to the GPU nowadays.

And on some embedded systems, Qt just gets a pointer to the screen memory, and does all the pixel manipulations itself. That's not a solution when you have to share the screen with multiple applications, but for single-function devices it definitely works.

Answer 2

No. There is nothing about GUI in C++ standard.

Frameworks use OS facilities. Standard C++ - no.