Is it possible to generate barcode from a string
using c#?
Is there any builtin classes for generating barcodes in asp.net?
Is it possible to detect a barcode printer connected with a system?
Yep. Of course it is possible. :-)
As far as I know there are two ways to generate bar codes:
Using a special bar code font (try to google for "barcode font free")
Render the bar code to an image and display that (try using the Barcode Rendering Framework available on github)
In response to your updated question about detecting barcode printers:
I think a barcode printer will show up as a regular printer on your system. At least that is how the devices I have played with have worked.
This means that you can detect a specific barcode printer by enumerating the installed printers on the system and looking for the specified device, but in most cases I would suggest that you let the user specify the printer himself using either the standard print dialog or using a custom dialog.
Is it possible to generate barcodes from a string using c#?
Yes, it is. There are quite a lot of frameworks that do it - either as a font or an image.
Is there any built-in classes for generating barcodes in asp.net?
No, but this c# project on github allows a string to be converted into an image (even multiple barcode types). All you need to do then is display the image in your application, just like any other image.
Is it possible to detect a barcode printer connected with a system?
Yes, in a WinForm application, for example, you could use System.Drawing.Printing.PrinterSettings.InstalledPrinters.
to detect if you have printer installed then you may simply enumerate available printers using:
System.Drawing.Printing.PrinterSettings.InstalledPrinters
Is it possible to generate barcode from a string using c#?
If you want a C# barcode generator that can create your desired barcode type in a single line of code, you can use IronOcr.
// Create A Barcode in 1 Line of Code
BarcodeWriter.CreateBarcode("https://ironsoftware.com/csharp/barcode", BarcodeWriterEncoding.QRCode).SaveAsJpeg("QR.jpg");
The result can be exported as images, bitmaps, binary data, streams, stand-alone HTML image tag, Data Uris, PDFs or HTML.
If you need more advanced barcodes, QR Codes with logos - these are also supported.
Disclaimer: I work for Iron Software, makers of IronBarcode
Yes, it's possible using C#.
No, there are no built-in classes. But there are 3rd-party libraries.
For example, a free cross-platform C# library Gehtsoft.Barcodes for generation of different types of barcodes and QR codes from string into image. You can find it in nuget.
Moreover, you can generate barcode directly into PDF document with Gehtsoft.PDFFlowLib.Barcodes C# library (it uses Gehtsoft.Barcodes library automatically). It can also be downloaded from nuget.
DocumentBuilder.New()
.AddSection()
.AddParagraph()
.AddBarcode("4810151021665", BarcodeType.EAN_13)
.ToDocument()
.Build("Result.pdf");
Using this libraries you can generate barcodes UPC-A, EAN-13, EAN-8, GS1-128 (Code Sets A, B, and C) and QR codes (variants 1-40, four levels of error correction available).
Here is a tutorial with many examples: Adding barcodes.
Note, that Gehtsoft.PDFFlowLib.Barcodes library is an extension of PDFFlow library for generation PDF documents using C#.
Related
Is there a way to print PDF from UWP application? Other than rendering it as png or BitmapImage.
I had look at Microsoft printing sample and pdf rendering sample to achieve printing pdf by rendering it into bitmapimage. But, it looses the quality of the pdf. Would like to know if any other efficient method available without using libraries .
Edit(31/12/2018)
I tried to find direct solutions from Microsoft without using libraries. But, there isn't any so i used PDfSharp to solve my problem with the help of AppServiceBridge by Microsoft. I have used AppService bridge because PdfSharp isn't directly available for WinRT.
I used a virtual printer in C# using the Github project: Microsoft/Windows-driver-samples/print/XPSDrvSmpl.
https://github.com/Microsoft/Windows-driver-samples/tree/master/print/XPSDrvSmpl
Installer: http://wixtoolset.org/
Application: Listen to internal port
Flow: Install printer and application from a single installer. User prints something with your driver while the application listens to the internal port. When data is sent the application picks it up. This is for XPS, can be converted to PDF, but the flow is similar no matter what you are printing.
Original answer:
https://stackoverflow.com/a/40370083/3850405
I would like to know the difference between the barcode fonts and other barcode libraries that are available.
How does these fonts work?
I mean how does it differ from other barcode libraries?can these barcode fonts be used for commercial purpose too?
Is it feasible enough to use in commercial applications?
There are some third party barcode libraries.
how do i see from their dll or lib file that which are libraries they have used.
Difference between free barcode fonts and other barcode libraries?
Since each barcode is a representation of a string, and each character in the string is represented exactly by a segment of a barcode, each character of the barcode string may be represented individually. Because of this, you can represent a barcode using a font (although barcodes such as EAN13 require a prefix and suffix, but these can be represented by a character as well).
The font simply draws a set of lines instead of drawing a 4, for example.
The other way of rendering barcodes is by drawing lines manually, which may produce the same output. Scaling of the barcode would have to be done manually as well. By using fonts you get the best result when printing a barcode though.
Using fonts usually provides the best result detail-wise, especially when printing. I can't think of a limitation that would make them not suitable for commercial applications. The ability to display barcodes in office applications is a nice bonus.
I don't know of any libraries, sofar I've used fonts or rendered my own.
If it's a .NET assembly you can use ILSpy to view contents / dependencies of the assembly if the library was merged into the main assembly, otherwise the dll will be in the folder of the application.
I'm trying to figure out how to create barcodes using ReportViewer Local Report VS 2008.
I find a component at:
www.neodynamic.com/barcodes/Interleaved_2_of_5_Barcode_asp_net.aspx
It seems there is no other solution native... Is there another alternative way?
Depends on what kind of barcode you need. For basic barcodes you could just use free barcode font
I've always implemented barcodes using a font. Barcodes are nothing more than data presented in a different way. Instead of human-readable they are "barcode scanner readable", so to speak.
You'll need to find fonts (Google search - there's lots available for free) that suit the symbology (or symbologies) supported by the scanner being used. Some readers need start and stop characters as well. So, for example, if you had an ID value of 123456 you might put that in a textbox on your report surrounded by start and stop character * - *123456*, and then apply your barcode font to the textbox.
I am planning to write an app that can open and display PDF documents, and perform OCR on vector graphic elements within the PDFs. The user must be able to select regions of the document and I need to draw real-time annotations on the document. I don't need to alter or save the document itself.
I have plenty of experience with C# and WPF; I have written a similar application already that does the above on XPS/XAML documents rather than PDF. However that app only runs on Windows and PDF documents must be converted to XPS first.
I have done quite a bit of research and there are many, many options available, none of which seem an obvious choice. There are many libraries that can open PDFs or create PDFs, but most don't seem to give you access to individual vector graphic elements in a format that lets you draw/manipulate them on the screen (similar to what I could do with WPF graphic elements extracted from XPS documents).
I am familiar with .Net and C# (including .Net 2 GDI+ graphics) and I am very keen to stick to what I know. I am also using EmguCV for image recognition which can be compiled in Mono or .Net. As such I am looking at Silverlight (running standalone) or Mono options, both of which should run on PC and Mac.
Performance (for both graphics and number crunching) is a strong consideration, though I am just as interested in getting this up and running quickly.
Does anyone have any experience with opening PDFs, extracting vector graphic elements (perhaps as SVG) and rendering them in a Mono app? Can individual elements be rendered to bitmap?
Alternatively, does anyone have experience with opening PDFs in Silverlight and converting them to XPS or XAML at runtime? I know that WPF and Silverlight graphics libraries are not 1:1, but I'm not sure how this affects XPS contents (generally composed of Canvas, Glyphs and StreamGeometry objects).
Thank you for any advice, tips or links you have to share.
look at this
http://silverpdf.codeplex.com/
it's client side pdf reading library. actually right now it can only read files, but you could play with it and make your own "display" functionality.
You might want to examine the internals of your PDFs so you understand what they actually contain better - you might be very surprised! For example, text can often be scanned pages or images and vecotr graphics do not exist as neat little packages. We wrote a whole load of general articles about what is inside a PDF and analysis tools at http://www.jpedal.org/PDFblog which are not specific to any tool or language.
As part of a project I'm working on, I need to automate a label printer. It will be one of those inexpensive USB printers from Brother or Dymo (open to other suggestions). All it needs to do is print two numbers on one label.
The challenge is that I'm hoping to keep it ultra-simple in C#. It seems like the solution from Brother is antiquated, and the Dymo SDK is a little more complicated than what I would like. Both solutions require the end user to install the full blown application.
Do I have to suck it up and use the low-level COM solution provided by Dymo? Or has someone found a simpler way to print uncomplicated labels?
DYMO now has a very handy framework that can be used to create and print labels using templates or built in XML.
Here is the download:
http://sites.dymo.com/Support/Pages/ProductDetails.aspx?MainTab=1&Tab=1&ProductID=DYMOSDK(DYMO)
Here is the documentation:
http://www.labelwriter.com/software/dls/sdk/docs/DYMOLabelFrameworkdotNETHelp/html/N_DYMO_Label_Framework.htm
Install the labelmaker as a printer on the computer.
Then, use mail-merge from Excel to Word.
Create a spreadsheet with rows representing labels and columns representing pieces of information on that label.
Use mail-merge in MS Word using the spreadsheet as the data.