检测显示器的物理尺寸 [英] Detect Physical dimension of Monitor

问题描述

是否可以使用JavaScript或Flash？

我尝试了以下函数：

  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; 
  

但它并不显示固定的对角线值...因为当我改变分辨率显示...

在我想要的固定尺寸像16.5...我的意思是，它应该是固定的任何特定的显示器..

解决方案

不可能检测物理尺寸。

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..

解决方案

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

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