WPF 打印操做之PrintDocument，WPF獲取打印機列表，WPF指定打印機

1、WPF 打印操做之PrintDocument，WPF獲取打印機列表，WPF指定打印機

PrintDocument

定義一個可重用的對象，當從Windows Forms應用程序進行打印時，該對象將輸出發送到打印機

 

一般，您將建立PrintDocument類的實例，設置諸如DocumentName和PrinterSettings之類的屬性，而後調用Print方法來啓動打印過程。經過使用PrintPageEventArgs的Graphics Graphics屬性，在您指定要打印輸出的地方處理PrintPage事件。

 

更多參考：

https://docs.microsoft.com/en-us/dotnet/api/system.drawing.printing.printdocument?view=dotnet-plat-ext-3.1

 

2、wpf獲取系統可用打印機列表

 

//獲取打印機列表
StringCollection strList = PrinterSettings.InstalledPrinters;

 

 

使用打印機名稱，指定特定的打印機進行打印。

PrintDocument pd = new PrintDocument(); pd.PrinterSettings.PrinterName = "Canon TS3100 series (副本 1)";

 

3、打印示例

Font printFont = null; StreamReader streamToPrint = null; private void Button_Click_1(object sender, RoutedEventArgs e) { try { streamToPrint = new StreamReader ("G:\\桌面\\新建文本文檔.txt"); try { printFont = new Font("Arial", 10); PrintDocument pd = new PrintDocument(); pd.PrinterSettings.PrinterName = "Canon TS3100 series (副本 1)"; pd.PrintPage += new PrintPageEventHandler (this.pd_PrintPage); pd.Print(); } finally { streamToPrint.Close(); } } catch (Exception ex) { MessageBox.Show(ex.Message); } } // The PrintPage event is raised for each page to be printed.
private void pd_PrintPage(object sender, PrintPageEventArgs ev) { float linesPerPage = 0; float yPos = 0; int count = 0; float leftMargin = ev.MarginBounds.Left; float topMargin = ev.MarginBounds.Top; string line = null; // Calculate the number of lines per page.
    linesPerPage = ev.MarginBounds.Height / printFont.GetHeight(ev.Graphics); // Print each line of the file.
    while (count < linesPerPage && ((line = streamToPrint.ReadLine()) != null)) { yPos = topMargin + (count * printFont.GetHeight(ev.Graphics)); ev.Graphics.DrawString(line, printFont, System.Drawing.Brushes.Black, leftMargin, yPos, new StringFormat()); count++; } // If more lines exist, print another page.
    if (line != null) ev.HasMorePages = true; else ev.HasMorePages = false; }

 

 

更多：

WPF 打印操做之PrintDialog

WPF 皮膚之MathApps.Metro UI庫

WPF RichTextBox滾動條自動滾動實例、文本自動滾動實例