DJVU阅读器从头开始。 C＃

Question

I want to write your own djvu reader in C #. Prompt where to start?

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Program write in C # (Winforms) in Visual Studio. The problem arises in that I do not understand how to read djvu. Or rather take it apart to import each image for further display in the program.

Answer 1

DjVu is an open standard. There is a C++-based library which reads the format. You can just copy it if you can open source your code (it's GPL): http://djvu.sourceforge.net/ .

If not, you can start with the specs at http://djvu.org/resources/ and code up your own from scratch.

Good luck!

Answer 2

You start with File -> New Project

Stack overflow isn't a "do it for you" site.

problem arises in that I do not understand how to read djvu

You've identified the problem. The solution is then to read up on the format and the spec.

Answer 3

I have a C# Djvu reader which is open sourced. You can find it here: https://github.com/Telavian/DjvuNet

Edit: My library has been taken over by 4creators at: https://github.com/DjvuNet/DjvuNet

Answer 4

Use the FileStream class to read the file.

Use the Bitmap class (WinForms) or the WriteableBitmap class (WPF) to write pixels.

Answer 5

CamiNova, the company that took over development and maintenance of DjVu from LizardTech makes a .NET SDK available. I would start there.

https://www.caminova.net/en/downloads/download.aspx?id=17

Answer 6

Telavian wrote:

"I have a C# Djvu reader which is open sourced. You can find it here: https://github.com/Telavian/DjvuNet "

Unfortunately, this project doesn't work fully. Normally the documents having some pages open only. The one-page documents which don't have PageHeader, don't boot. Dear Telavian, look please at this moment. I could send samples of documents which don't open

sample file