private ObservableCollection<Visual> m_listVisuals = new ObservableCollection<Visual>();
//Define and initiate PrintDialog which is necessary for printing
//PrintDialog is in System.Windows.Controls
PrintDialog printDialog = new PrintDialog();
//Pass list of visuals through your constructor
public Constructor(ObservableCollection<Visual> listVisuals)
{
InitializeComponent();
m_visualsCount = listVisuals.Count; //Calculate number of visuals and assign to local variable
m_listVisuals = listVisuals; //Assign all visuals in the list to local variable
//Define and initiate PrinterSettings and get the default printer name
var printersettings = new PrinterSettings();
string st = printersettings.PrinterName;
//Now get all the installed printers on your system into a ComboBox (it can be any other element as well)
foreach (string str in PrinterSettings.InstalledPrinters)
{
combo.Items.Add(str);
}
//Default selection of printer in ComboBox
for (int i = 0; i < PrinterSettings.InstalledPrinters.Count; i++)
{
if (PrinterSettings.InstalledPrinters[i].Equals(st))
{
combo.SelectedIndex = i;
}
}
//Now initiate the PrintServer and get Print Queues
var server = new PrintServer();
var queues = server.GetPrintQueues(new[] { EnumeratedPrintQueueTypes.Local, EnumeratedPrintQueueTypes.Connections});
//Set the status of selected printer(just to display on GUI)
foreach (var queue in queues)
{
if(st.Equals(queue.FullName))
{
sp.Text(any textbox in Xaml code) = queue.QueueStatus.ToString();
}
}
//To show the number of pages to be printed
pagesCount.Text(any textbox in Xaml code) = m_visualsCount.ToString();
}
//When the printing is initiated
private void buttonDone_Click(object sender, RoutedEventArgs e)
{
//Get the printer, server and queue that are currently selected
string str = PrinterSettings.InstalledPrinters[combo.SelectedIndex];
var server = new PrintServer();
var queues = server.GetPrintQueues(new[] { EnumeratedPrintQueueTypes.Local, EnumeratedPrintQueueTypes.Connections });
Find the selected printer for printing
foreach (var queue in queues)
{
if (str.Equals(queue.FullName))
{
// Get an XpsDocumentWriter for the default print queue
XpsDocumentWriter xpsdw = PrintQueue.CreateXpsDocumentWriter(queue);
VisualsToXpsDocument vtxd = (VisualsToXpsDocument)xpsdw.CreateVisualsCollator();
//Begin the batchwrite
vtxd.BeginBatchWrite();
//Scale and Write all visuals
for (int count = 0; count < m_visualsCount; count++)
{
if (m_listVisuals[count] != null)
{
//Scale the visual
Visual scaledVisual = ScaleVisual(m_listVisuals[count], queue);
//get selected printer capabilities
PrintCapabilities capabilities = printDialog.PrintQueue.GetPrintCapabilities(printDialog.PrintTicket);
//get scale of the print wrt to screen of WPF visual
double scale = Math.Min(capabilities.PageImageableArea.ExtentWidth / this.ActualWidth,
capabilities.PageImageableArea.ExtentHeight / this.ActualHeight);
//Transform the Visual to scale
this.LayoutTransform = new ScaleTransform(scale, scale);
//get the size of the printer page
Size sz = new Size(capabilities.PageImageableArea.ExtentWidth, capabilities.PageImageableArea.ExtentHeight);
//update the layout of the visual to the printer page size.
this.Measure(sz);
this.Arrange(new Rect(new Point(capabilities.PageImageableArea.OriginWidth, capabilities.PageImageableArea.OriginHeight), sz));
//Now write the visual to printer to fit on the one page.
vtxd.Write(scaledVisual);
}
}
//Mark the end of the batch operation.
vtxd.EndBatchWrite();
this.Close();
}
}
}
}
//Setting the properties of Selected Printer
private void combo_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
string st = combo.SelectedValue.ToString();
var server = new PrintServer();
var queues = server.GetPrintQueues(new[] { EnumeratedPrintQueueTypes.Local, EnumeratedPrintQueueTypes.Connections });
foreach (var queue in queues)
{
if (st.Equals(queue.FullName))
{
sp.Text = queue.QueueStatus.ToString();
printDialog.PrintQueue = queue;
printDialog.PrintTicket = queue.UserPrintTicket;
}
}
}
}
//We should able to scale the visual so it fits within the page.
private Visual ScaleVisual(Visual visual, PrintQueue printQueue)
{
ContainerVisual root = new ContainerVisual();
//An inch is 96 DIPs, use this to scale up sizes given in inches.
double inch = 96;
//Calculate our margins.
double xMargin = 1.25 * inch;
double yMargin = 1 * inch;
//Get the current print ticket from which the paper size can be obtained.
PrintTicket printTicket = printQueue.UserPrintTicket;
//Retrieve the dimensions of the target page.
double pageWidth = printTicket.PageMediaSize.Width.Value;
double pageHeight = printTicket.PageMediaSize.Height.Value;
double xScale = (pageWidth - xMargin * 2) / pageWidth;
double yScale = (pageHeight - yMargin * 2) / pageHeight;
//Add the visual to ContainerVisual(root)
root.Children.Add(visual);
root.Transform = new MatrixTransform(xScale, 0, 0, yScale, xMargin, yMargin);
return root;
}
