Question

选择打印机打印文档时遇到问题。

我的代码是：

var filename = @"C:\Users\I\Desktop\test.doc";

PrintDialog pd = new PrintDialog();

pd.PrinterSettings =new PrinterSettings();

    if (DialogResult.OK == pd.ShowDialog(this))
    {
        Process objP = new Process();

        objP.StartInfo.FileName = filename;


        objP.StartInfo.WindowStyle =

        ProcessWindowStyle.Hidden; //Hide the window. 

        objP.StartInfo.Verb ="print";

          objP.StartInfo.Arguments ="/p /h \"" + filename + "\" \"" + pd.PrinterSettings.PrinterName + "\"";
        objP.StartInfo.CreateNoWindow = false;
        //true;//!! Don't create a Window. 
        objP.Start();
        //!! Start the process !!// 
        objP.CloseMainWindow();
    }

无论我选择什么，process总是会使用默认打印机，无论pd.PrinterSettings.PrinterName的值是多少。

我的代码出了什么问题？

Answer 1

您可能希望使用“PrintTo”而不是“print”来表示动词。您已经将objP.FileName设置为文件名，因此不需要在参数中复杂化。在那里单独传递打印机名称。

var filename = @"C:\Users\I\Desktop\test.doc"; 

PrintDialog pd = new PrintDialog(); 

pd.PrinterSettings =new PrinterSettings(); 

if (DialogResult.OK == pd.ShowDialog(this)) 
{ 
    Process objP = new Process(); 

    objP.StartInfo.FileName = filename;
    objP.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; //Hide the window.
    objP.StartInfo.Verb ="PrintTo";
    objP.StartInfo.Arguments = pd.PrinterSettings.PrinterName;
    objP.StartInfo.CreateNoWindow = false; 
    //true;//!! Don't create a Window.  

    objP.Start(); 
    //!! Start the process !!//  

    objP.CloseMainWindow(); 
}

Answer 2

尝试更改pd.PrinterSettings =new PrinterSettings();以阅读以下内容：

pd.PrinterSettings =new System.Drawing.Printing.PrinterSettings;

默认情况下，当您创建打印机设置实例时，它会返回默认的打印机名称，只是一个fyi ...您可以尝试这样的事情

//sudu code
foreach(string strPrinter in PrinterSettings.InstalledPrinters)
{
 // or unless you know the name of the printer then skip this and assign it to the code above
}

进程始终按默认打印机打印文档

2 个答案: