使用c#设置Windows的默认打印机

Question

我想在按钮单击时为Windows /系统设置设置默认打印机.我想点击一个按钮,并希望出现一个Windows对话框,要求用户设置默认打印机.现在我正在使用PrintDialog,但每次点击按钮都会更改打印机.我想将所选的打印机设置为默认打印机,即使我关闭应用程序也应该保持不变.

private void PrintSettingsBtn_Click(object sender, EventArgs e)
{
  PrintDialog PrintDialog = new PrintDialog();
  PrintDialog.ShowDialog();
  PrinterName = PrintDialog.PrinterSettings.PrinterName;
}

Answer 1

尝试SetDefaultPrinterWindows API函数

   using System.Runtime.InteropServices;

   ...

   [DllImport("winspool.drv", 
              CharSet = CharSet.Auto, 
              SetLastError = true)]
   [return: MarshalAs(UnmanagedType.Bool)]
   public static extern Boolean SetDefaultPrinter(String name);

   ...

   SetDefaultPrinter(PrinterName);

看到

http://msdn.microsoft.com/en-us/library/windows/desktop/dd162971(v=vs.85).aspx http://www.pinvoke.net/default.aspx/winspool/SetDefaultPrinter.html？ DIFF = Y