How to put a figure window in the center of the screen?

Is it possible to put a figure (for example a GUI window) in the center of the screen? How to get screen size in pixels, or how to measure position not from the bottom, but from the top?

Answer 1

[Atsushi Ueno]

In MATLAB, how do I obtain information about my screen resolution and screen size? - MATLAB Answers - MATLAB Central (mathworks.com)

width = 640; height = 480;
Pix_SS = get(0,'screensize')

Pix_SS = 1×4

1 1 1920 1200

[(Pix_SS(3)-width)/2 (Pix_SS(4)-height)/2 width height]

ans = 1×4

640 360 640 480

figure('Position', [(Pix_SS(3)-width)/2 (Pix_SS(4)-height)/2 width height])

[Merse Gaspar]

What does that 0 mean in get(0,'screensize')? Pixel units is default for the get function?

[Walter Roberson]

@Merse Gaspar

Historically, 0 was used to refer to the "root" of the handle graphics system -- the object that is the parent of all figures (and other figure-like graphics objects.)

These days, using groot is the preferred way to refer to the root of the graphics system. (There are a small number of differences between using 0 and using groot() that most people would never notice)

[Merse Gaspar]

Thanx!

Answer 2

[Adam Danz]

> Is it possible to put a figure (for example a GUI window) in the center of the screen? |

Use movegui

movegui('center')

or

movegui(fig,'center')

where fig is a figure handle.