Detect Physical dimension of Monitor

问题

I want to get the display dimensions of my monitor.

Is it possible to do with JavaScript or Flash?

I tried the following function:

var dpi_x = document.getElementById('testdiv').offsetWidth;
        var dpi_y = document.getElementById('testdiv').offsetHeight;
        var width_in = screen.width / dpi_x;
        var height_in = screen.height / dpi_y;
        var diagonal_in = Math.round(10 * Math.sqrt(width_in * width_in + height_in * height_in)) / 10;

but it doesn't show the fixed diagonal value... because when I change the resolution of the display...

Where as I want the fixed dimension like 16.5"... I mean, it should be fixed for any specific monitor..

回答1:

It's not possible to detect the physical dimensions. Resolution is as close as you're gonna get.

来源：https://stackoverflow.com/questions/12051071/detect-physical-dimension-of-monitor