How to get the screen & height width using c?

Question

Just learned that there is no pre-defined graphics library for C. I want to get the resolution of the current monitor screen.

For Linux, see for example here: http://stackoverflow.com/questions/1829706/how-to-query-x11-display-resolution. — Hellmar Becker, Mar 30 '17 at 12:49
You can use a cross-platform library for this, e.g. [SDL](https://www.libsdl.org) or [GLFW](http://www.glfw.org). — Emil Laine, Mar 30 '17 at 12:49
Are you looking for the size of the whole display or the current terminal? On a system with two monitors, which monitor are you looking for? Are you looking for the size in pixels or characters or something else? — Jonathan Leffler, Mar 30 '17 at 12:50
Then you'll have to pick a graphics library (such as OpenGL or a native API) and use whatever methods it provides to query screen dimensions. — John Bode, Mar 30 '17 at 14:03

score 2 · Accepted Answer · answered Mar 30 '17 at 12:54

That is simply not possible to answer as a "pure C" question; there is no "screen" in C, i.e. the language and its standard library never assumes that there is any kind of screen-like output device available.

You need to settle for a suitable library for a portable solution, or figure out how to talk directly to your target environment.

How to get the screen & height width using c?

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