Delphi 获取显示器桌面的长宽像素大小，当程序运行的时候，有一个屏幕尺子在不停的丈量屏幕，当丈量完毕会显示出屏幕的长度、宽度像素值大小，如截图所示，获取的值还是很准确的。

-Delphi get the pixel size of the display width of the desktop, when the program is running, there is a screen ruler in constant measurement of the screen when finished will show measure the length and width of the pixel values ​ ​ of the size of the screen, as shown in the screenshot to get the value of still very accurate.