printing

问题 Various WPF applications of mine display FlowDocument's. I'm able to print them, using the approach described in the answer to Printing a WPF FlowDocument. Now I'd like to add a "print preview" capability. In the normal case, I am printing the FlowDocument that is displayed in the Window, and so I wouldn't need a Print Preview then. But in some cases the FlowDocument to print is constructed on-the-fly in memory. And in these cases I'd like to display it before printing. Now, I can certainly

问题 How do I set the windows default printer in C#.NET? 回答1: Using the SetDefaultPrinter Windows API. Here's how to pInvoke that. 回答2: using System; using System.Drawing.Printing; using System.Windows.Forms; using System.Runtime.InteropServices; namespace WindowsFormsApplication1 { public partial class Form1 : Form { private void listAllPrinters() { foreach (var item in PrinterSettings.InstalledPrinters) { this.listBox1.Items.Add(item.ToString()); } } private void listBox1_SelectedValueChanged

问题 How do I set the windows default printer in C#.NET? 回答1: Using the SetDefaultPrinter Windows API. Here's how to pInvoke that. 回答2: using System; using System.Drawing.Printing; using System.Windows.Forms; using System.Runtime.InteropServices; namespace WindowsFormsApplication1 { public partial class Form1 : Form { private void listAllPrinters() { foreach (var item in PrinterSettings.InstalledPrinters) { this.listBox1.Items.Add(item.ToString()); } } private void listBox1_SelectedValueChanged

问题 I have an image in a PictureBox, and I want to print it. No formatting, no nothing, just print it. I've been searching on Google but I've got nothing, only people printing forms or text or reports. private string imgSrc; public string ImgSrc { get { return imgSrc; } set { imgSrc = value; } } public Id_Manager() { ImgSrc = "D:\\Foto.jpg"; InitializeComponent(); idPicture.Load(this.ImgSrc); } Obviously the image is going to change, but for now I'm just interested in printing that image. I'm

问题 Here's a scenario. You have a large amount of legacy scripts, all using a common library. Said scripts use the 'print' statement for diagnostic output. No changes are allowed to the scripts - they range far and wide, have their approvals, and have long since left the fruitful valleys of oversight and control. Now a new need has arrived: logging must now be added to the library. This must be done automatically and transparently, without users of the standard library needing to change their

问题 Why is finding out this magic Rectangle so difficult? In the OnPrintPage event I have PrintPageEventArgs and I am trying to draw using the Graphics within the bounds of the maximum printable area. I have tried using PageBounds, PrintableArea, Graphics.VisibleClipBounds, etc. All fail to consistently get the drawing area, especially when switching from Landscape to Portrait layout. PrintableArea does not seem to ever change when you switch from Landscape to Portrait. I have also noticed that

问题 I am currently opening a pdf file in a new tab in my browser but I need to know how to open a printer dialog to print the pdf jasper report after pressing a commandButton This is the method that open the pdf in a new tab: public void printJasper() { JasperReport compiledTemplate = null; JRExporter exporter = null; ByteArrayOutputStream out = null; ByteArrayInputStream input = null; BufferedOutputStream output = null; FacesContext facesContext = FacesContext.getCurrentInstance();

问题 I am currently opening a pdf file in a new tab in my browser but I need to know how to open a printer dialog to print the pdf jasper report after pressing a commandButton This is the method that open the pdf in a new tab: public void printJasper() { JasperReport compiledTemplate = null; JRExporter exporter = null; ByteArrayOutputStream out = null; ByteArrayInputStream input = null; BufferedOutputStream output = null; FacesContext facesContext = FacesContext.getCurrentInstance();

问题 I am using the ASP Net Sprites package to create CSS Sprites on my website. It is working, but the images it generates do not appear when printed. The code generated at HTML level is: <a href="/" id="siteLogo"><img class="getmecooking-logo-png" src="data:image/gif;base64,R0lGODlhAQABAIABAP///wAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /></a> How can I get the logo image to appear when a user prints the page? I have tried adding this in my print.css stylesheet, but it didn't work: #siteLogo {

问题 I am creating a dataframe using this code: df <- data.frame(dbGetQuery(con, paste('select * from test'))) Which results in this: UID BuildingCode AccessTime 1 123456 BUILD-1 2014-06-16 07:00:00 2 364952 BUILD-2 2014-06-15 08:00:00 3 95865 BUILD-1 2014-06-06 09:50:00 I am then trying to remove the row names (1, 2, 3, etc) as suggested here by using this code: rownames(df) <- NULL But then when I print out df it still displays the row names. Is there a way to not include the row names when