Csharp/C Sharp by API/System.Windows.Forms/PrinterSelectionDialog — различия между версиями

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м (1 версия)
 
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Версия 15:31, 26 мая 2010

PrinterSelectionDialog.PrinterName

 
using System;
using System.Drawing;
using System.Drawing.Printing;
using System.Windows.Forms;
class PrinterSelectionDialog: Form
{
     ComboBox combo;
   
     public PrinterSelectionDialog()
     {
          Label label    = new Label();
          label.Parent   = this;
          label.Text     = "Printer:";
          label.Location = new Point(8, 8);
          label.Size     = new Size(40, 8);
   
          combo = new ComboBox();
          combo.Parent   = this;
          combo.DropDownStyle = ComboBoxStyle.DropDownList;
          combo.Location = new Point(48, 8);
          combo.Size     = new Size(144, 8);
   
          foreach (string str in PrinterSettings.InstalledPrinters)
               combo.Items.Add(str);
   
          Button btn   = new Button();
          btn.Parent   = this;
          btn.Text     = "OK";
          btn.Location = new Point(40, 32);
          btn.Size     = new Size(40, 16);
          btn.DialogResult = DialogResult.OK;
          AcceptButton = btn;
   
          btn  = new Button();
          btn.Parent = this;
          btn.Text = "Cancel";
          btn.Location = new Point(120, 32);
          btn.Size   = new Size(40, 16);
          btn.DialogResult = DialogResult.Cancel;
   
          CancelButton = btn;
   
          ClientSize = new Size(200, 56);
          AutoScaleBaseSize = new Size(4, 8);
     }
     public string PrinterName
     {
          set { combo.SelectedItem = value; }
          get { return (string) combo.SelectedItem; }
     }
}
   
class PrintWithMargins: Form
{
     public static void Main()
     {
          Application.Run(new PrintWithMargins());
     }
     public PrintWithMargins()
     {
          Text = "Print with Margins";
          Menu = new MainMenu();
          Menu.MenuItems.Add("&File");
          Menu.MenuItems[0].MenuItems.Add("&Print...", 
                                   new EventHandler(MenuFilePrintOnClick));
     }
     void MenuFilePrintOnClick(object obj, EventArgs ea)
     {
          PrintDocument prndoc = new PrintDocument();
   
          PrinterSelectionDialog dlg = new PrinterSelectionDialog();
          dlg.PrinterName = prndoc.PrinterSettings.PrinterName;
   
          if (dlg.ShowDialog() != DialogResult.OK)
               return;
   
          prndoc.PrinterSettings.PrinterName = dlg.PrinterName;
   
          prndoc.DocumentName = Text;
          prndoc.PrintPage += new PrintPageEventHandler(OnPrintPage);
          prndoc.Print();
     }
     void OnPrintPage(object obj, PrintPageEventArgs ppea)
     {
          Graphics   grfx  = ppea.Graphics;
          RectangleF rectf = new RectangleF(
               ppea.MarginBounds.Left - 
               (ppea.PageBounds.Width - grfx.VisibleClipBounds.Width) / 2,
               ppea.MarginBounds.Top - 
               (ppea.PageBounds.Height - grfx.VisibleClipBounds.Height) / 2,
               ppea.MarginBounds.Width,
               ppea.MarginBounds.Height);
   
          grfx.DrawRectangle(Pens.Black, rectf.X, rectf.Y, 
                                         rectf.Width, rectf.Height);
   
          grfx.DrawLine(Pens.Black, rectf.Left, rectf.Top, 
                                    rectf.Right, rectf.Bottom);
   
          grfx.DrawLine(Pens.Black, rectf.Right, rectf.Top, 
                                    rectf.Left, rectf.Bottom);
     }
}