We are migrating our SilverLight application into WPF, in our application for printing we have used System.Windows.Printing. Same namespace is not available in WPF it has System.Drawing.Printing namespace, due to this existing functionality is not working as expected. We need to write the new printing for this. Is there any way we can achieve the same without writing new code.
Implementation of printing a file with a choice of printer in WPF
private static void PrintFile(string pathToFile)
{
PrintDialog pDialog = new PrintDialog();
bool? print = pDialog.ShowDialog();
if (print == true)
{
string printerName = pDialog.PrintQueue.FullName;
Process p = new Process
{
StartInfo = new ProcessStartInfo()
{
Arguments = "\"" + printerName + "\"",
CreateNoWindow = true,
Verb = "PrintTo",
FileName = pathToFile
}
};
p.Start();
}
}
Related
I want to write my own PrintPreview for larger text using a DocumentViewer to display it later.
I have not found anything usefully for my problem.
At the moment I'm searching for a way to get the content of the individual pages.
I found a way to access the individual pages, but I can't store or get it.
Using the code:
DocumentPaginator dpPages = (DocumentPaginator)((IDocumentPaginatorSource)twhtTemp.BuildTemplateControl(txtHeader, txtContent, pdlgPrint)).DocumentPaginator;
dpPages.ComputePageCount();
var fixedDocument = new FixedDocument();
for (int iPages= 0; iPages < dpPages.PageCount; iPages++)
{
var pageContent = new PageContent();
var fixedPage = new FixedPage();
fixedPage.Width = pdlgPrint.PrintableAreaWidth;
fixedPage.Height = pdlgPrint.PrintableAreaHeight;
pageContent.Child = fixedPage;
fixedDocument.Pages.Add(pageContent);
}
I'm already adding a new page for each existing page, but I can't get the content of the page.
So far I know, I need a UIElement to add to fixedPage.Children.
Or is there some easier way to get a flowdocument to a fixed document with many fixedpages (deppending to the pages count)?
i hate it to answer my own questions.
After searching three days i asked here.
One day later i found a way...
It's been a long time since the question has been answered.
I tried Doo Dah's answer, but the problem was that it doesn't take care of the page paddings of a flowdocument.
Therefore I wrote my own solution (Doo Dah's answer helped me to complete it):
public FixedDocument Get_Fixed_From_FlowDoc(FlowDocument flowDoc, PrintDialog printDlg)
{
var fixedDocument = new FixedDocument();
try
{
if (printDlg != null)
{
pdlgPrint = printDlg;
}
if (pdlgPrint == null)
{
pdlgPrint = new PrintDialog();
}
DocumentPaginator dpPages = (DocumentPaginator)((IDocumentPaginatorSource)flowDoc).DocumentPaginator;
dpPages.ComputePageCount();
PrintCapabilities capabilities = pdlgPrint.PrintQueue.GetPrintCapabilities(pdlgPrint.PrintTicket);
for (int iPages= 0; iPages < dpPages.PageCount; iPages++)
{
var page = dpPages.GetPage(iPages);
var pageContent = new PageContent();
var fixedPage = new FixedPage();
Canvas canvas = new Canvas();
VisualBrush vb = new VisualBrush(page.Visual);
vb.Stretch = Stretch.None;
vb.AlignmentX = AlignmentX.Left;
vb.AlignmentY = AlignmentY.Top;
vb.ViewboxUnits = BrushMappingMode.Absolute;
vb.TileMode = TileMode.None;
vb.Viewbox = new Rect(0, 0, capabilities.PageImageableArea.ExtentWidth, capabilities.PageImageableArea.ExtentHeight);
FixedPage.SetLeft(canvas, 0);
FixedPage.SetTop(canvas, 0);
canvas.Width = capabilities.PageImageableArea.ExtentWidth;
canvas.Height = capabilities.PageImageableArea.ExtentHeight;
canvas.Background = vb;
fixedPage.Children.Add(canvas);
fixedPage.Width = pdlgPrint.PrintableAreaWidth;
fixedPage.Height = pdlgPrint.PrintableAreaHeight;
pageContent.Child = fixedPage;
fixedDocument.Pages.Add(pageContent);
}
dv1.ShowPageBorders = true;
}
catch (Exception)
{
throw;
}
return fixedDocument;
}
You had to build a FlowDocument of the content you will show before and pass it
to the Method.
Added the PrintDialog variable to call the Method from my preview window and can pass the current printer settings.
If you call it from your main programm, you either can pass a new PrintDialog() or null, there is no difference, because it will create a new PrintDialog if you are passing null
This worked fine for me with a Flowdocument with different types of text (header, text, font).
It should work with pictures and text mixed, or only pictures, too - it's using the visuals and not something specific from a flowdocument, therefore it should work with pagebreaks, too.
I don't tryed Shahin Dohan'S answer, because it's the same problem as so often.
It's written at MVVM and very hard to understand when another person has written it.
At my opinion it would be better to write a little example programm without mvvm and the people can adept it to mvvm or use only the code.
I understand the opportunities of mvvm, but to show someone how to works something i see only disadvantages (if you will not show a specific mvvm mechanic)
Is it possible in WPF to get content of each DocumentPage by page number?
You can follow this then add each extracted TextRange to whatever you want.
I'm trying to attach a PDF File to a Print Dialog, but I haven't find out the way to do it.
I'm using a WPF app, and I have some code related with printing and looks like this:
private void Imprimir()
{
try
{
FixedDocument document = null;
PageContent pageContent = null;
FixedPage fixedPage = null;
PrintDialog printDlg = new PrintDialog();
if (printDlg.ShowDialog() != true)
return;
document.DocumentPaginator.PageSize = new System.Windows.Size(1400, 1450);
fixedPage.Width = document.DocumentPaginator.PageSize.Width;
fixedPage.Height = document.DocumentPaginator.PageSize.Height;
fixedPage.Margin = new Thickness(96, 96, 0, 0);
fixedPage.Children.Add(this);
((System.Windows.Markup.IAddChild)pageContent).AddChild(fixedPage);
document.Pages.Add(pageContent);
printDlg.PrintDocument(document.DocumentPaginator, "Impresion Cierre");
fixedPage.Children.Clear();
}
catch (Exception ex)
{
System.Windows.MessageBox.Show(ex.Message);
}
}
But, by this way I'm just printing a UI Element added to Fixed Page.
I've looked for other codes, but I find nothing.
So, I don´t know if is possible to add a PDF File stored locally to the Print Dialog ?
Thanks for the help...
Well you cannot do this using PrintDialog. There are several options, depending on your goals:
var printQueue = LocalPrintServer.GetDefaultPrintQueue();
using (var input = File.OpenRead("path_to_your.pdf")) {
using (var job = printQueue.AddJob()) {
using (var output = job.JobStream) {
input.CopyTo(output);
}
}
}
Will silently send print job for your file to local print queue. Print job is configurable.
Alternatively you can use adobe reader to handle that for you (or another pdf reader installed on user's machine) but starting process with path to your pdf as FileName and Verb="print".
One more option is to use third party tools (like ghostscript) which can help you with that.
hi im working on a project that uses invoke and threads.. it is a simple remote desktop program with chat.. i got a sample here on the internet in c# winform, but i would like to convert it to wpf.. i have no problem in sending message to another client using the wpf program but it cannot receive ( or cannot read) the sent messages from the others.. i think it has something to do with the thread and the invoke method, i read that wpf does invoke differently and i did try the dispatcher.invoke, but it still doesnt do the trick
pls hellp
here's the code
wait = new Thread(new ThreadStart(waitForData));
wait.Start();
that snippet above is executed when a successful connection is made in tcpclient
private void waitForData()
{
try
{
NetworkStream read = tcpclnt.GetStream();
while (read.CanRead)
{
byte[] buffer = new byte[64];
read.Read(buffer, 0, buffer.Length);
s = new ASCIIEncoding().GetString(buffer);
System.Console.WriteLine("Recieved data:" + new ASCIIEncoding().GetString(buffer));
rcvMsg = new ASCIIEncoding().GetString(buffer) + "\n";
hasNewData = true;
bool f = false;
f = rcvMsg.Contains("##");
bool comand = false;
comand = rcvMsg.Contains("*+*-");
/*File receive*/
if (f)
{
string d = "##";
rcvMsg = rcvMsg.TrimStart(d.ToCharArray());
int lastLt = rcvMsg.LastIndexOf("|");
rcvMsg = rcvMsg.Substring(0, lastLt);
NetworkStream ns = tcpclnt.GetStream();
if (ns.CanWrite)
{
string dataS = "^^Y";
byte[] bf = new ASCIIEncoding().GetBytes(dataS);
ns.Write(bf, 0, bf.Length);
ns.Flush();
}
try
{
new Recieve_File().recieve_file(rcvMsg);
}
catch (Exception ec)
{
System.Console.WriteLine(ec.Message);
}
}
/*Command-shutdown/restart/logoff*/
else if (comand)
{
string com = "*+*-";
rcvMsg = rcvMsg.TrimStart(com.ToCharArray());
execute_command(rcvMsg);
}
else
{
this.Invoke(new setOutput(setOut));
Thread.Sleep(1000);
}
}
}
catch (Exception ex)
{
wait.Abort();
output.Text += "Error..... " + ex.StackTrace;
}
}
the snippet above is a code that listens if there is a message or command.. the line
this.invoke(new setoutput(setout)) is a code for appending text in the rtb
hope someone could help me thanks
You've posted a lot of code, but I'm assuming it's only the call to Control.Invoke which is causing the problem. In WPF, use Dispatcher.Invoke (or Dispatcher.BeginInvoke) instead, via the Dispatcher property on the relevant UI element.
I'd also strongly encourage you to:
Refactor your code into smaller methods
Stop catching just Exception except at the top level of any large operation (it should just be a fall-back; usually you catch specific exceptions)
Start following .NET naming conventions
Add a using directive for System so you can just write Console.WriteLine instead of System.Console.WriteLine everywhere
Use Encoding.ASCII instead of creating a new ASCIIEncoding each time you need one
Use a StreamReader to read character data from a stream, instead of reading it as binary data first and then encoding it
For either Stream or TextReader, don't ignore the return value from Read - it tells you how many bytes or characters have been read
I am trying to make a basic 'Silverlight Class Library' in Silverlight 4 to return basic Facebook Information using Facebook's Graph API, but I am only getting empty strings being returned.
I am using the following code:
string _Response = "";
public string GetFacebookMe(string access_token)
{
WebClient facebookClient = new WebClient();
facebookClient.DownloadStringCompleted += new DownloadStringCompletedEventHandler(facebookClientDownloadStringCompleted);
facebookClient.DownloadStringAsync(new Uri("https://graph.facebook.com/me" + "?access_token=" + access_token));
string ret = _Response;
return ret;
}
private void facebookClientDownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
if (e.Error == null)
{
_Response = e.Result;
}
else
{
_Response = e.Error.Message;
}
}
I tried while debugging to init _Response to the value "Default", and the string "Default" was consequently being returned. I have been messing with this for a while and I'm not sure where I'm going wrong.
Thanks in advance!
It means a lot of effort to use directly WebClient. When using Silverlight and .Net Framework 4.0 you may use Facebook C# SDK at Codeplex
Usage of the SDK is excellently covered in this blog by Prabir Shrestha
Anyone know of a way to reliably take a snapshot of a WPF window? The PrintWindow api works well for "standard" win32 windows but since WPF uses DirectX, PrintWindow fails to capture an image. I think that one would need to grab the front buffer for the DirectX object associated with the window, but I am not sure how to do that.
Thanks!
I'm not sure if this is what you mean, and I'm not sure I'm allowed to link to my blog or not, but is this any use? It basically uses a RenderTargetBitmap to generate a JPG. You can use it to "screenshot" an entire window then print that.
If this is against the rules, someone feel free to delete :)
This Method should help you print the entire WPF / XAML Window
private void PrintWindow(PrintDialog pdPrint,
System.Windows.Window wWin,
string sTitle,
System.Windows.Thickness? thMargin)
{
Grid drawing_area = new Grid();
drawing_area.Width = pdPrint.PrintableAreaWidth;
drawing_area.Height = pdPrint.PrintableAreaHeight;
Viewbox view_box = new Viewbox();
drawing_area.Children.Add(view_box);
view_box.HorizontalAlignment = System.Windows.HorizontalAlignment.Center;
view_box.VerticalAlignment = System.Windows.VerticalAlignment.Center;
if (thMargin == null)
{
view_box.Stretch = System.Windows.Media.Stretch.None;
}
else
{
view_box.Margin = thMargin.Value;
view_box.Stretch = System.Windows.Media.Stretch.Uniform;
}
VisualBrush vis_br = new VisualBrush(wWin);
System.Windows.Shapes.Rectangle win_rect = new System.Windows.Shapes.Rectangle();
view_box.Child = win_rect;
win_rect.Width = wWin.Width;
win_rect.Height = wWin.Height;
win_rect.Fill = vis_br;
win_rect.Stroke = System.Windows.Media.Brushes.Black;
win_rect.BitmapEffect = new System.Windows.Media.Effects.DropShadowBitmapEffect();
// Arrange to produce output.
Rect rect = new Rect(0, 0, pdPrint.PrintableAreaWidth, pdPrint.PrintableAreaHeight);
drawing_area.Arrange(rect);
// Print it.
pdPrint.PrintVisual(drawing_area, sTitle);
}
Regards Sean Campbell
You can use the PrintDialog.PrintVisual() method.
MSDN Link: http://msdn.microsoft.com/en-us/library/system.windows.controls.printdialog.printvisual.aspx
A sample: http://www.thejoyofcode.com/Reason_9._Printing.aspx