Question

I’m using MATLAB and am calling a function that returns properties of the screen. Please see below:

>> Screen('resolution', 0)

ans = 

    width: 1280
   height: 1024
pixelSize: 32
       hz: 60

This is great, but I only want to access the ‘width’ parameter. I don’t know whether this is classed as a ‘paired array’ or simply a list, but basically I’m interested in extracting just the first element; the ‘width’.

Any ideas?

Answer 1

The answer you get from Screen is an array of type struct. You access the fields of a structure array with a variableName.fieldName syntax.

screenInfo = Screen('resolution',0);

%# access width
width = screenInfo.width