C＃代码可获取已安装或所选打印机的最大dpi [英] C# code to get maximum dpi of installed or selected printer

问题描述

我想获取已安装或所选打印机的最大Dpi。我尝试过

I want to get Maximum Dpi of installed or selected printer. I tried

PrinterSettings ps = new PrinterSettings();
        MessageBox.Show(ps.PrinterResolutions.ToString());

，我得到以下输出：System.Drawing.Printing.PrinterSettings + PreinterResolutionCollection
（The所需的输出是600x600）。

and I get this output: System.Drawing.Printing.PrinterSettings+PreinterResolutionCollection (The desired output is 600x600).

推荐答案

使用LINQ：

PrinterSettings ps = new PrinterSettings();
var maxResolution = ps.PrinterResolutions.OfType<PrinterResolution>()
                                         .OrderByDescending(r => r.X)
                                         .ThenByDescending(r => r.Y)
                                         .First();
MessageBox.Show(String.Format("{0}x{1}", maxResolution.X, maxResolution.Y));

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