Help - Arabic Print Ploblem

Question

0.00/5 (No votes)

See more:

Hi
I`m going to print out Arbic recipt print by using C#(.NET 2.0)
Please see each code as below by Serial interface.

byte[] cutemp = Encoding.GetEncoding(1256).GetBytes(content);
serialPort.BaseStream.WriteTimeout = 1500000;
serialPort.BaseStream.Write(cutemp, 0, cutemp.Length);
serialPort.BaseStream.Flush();

BUT, the problem is that Arbic print out in reverse.(Up side down)
When mix English and Arbic, English print out well, only arabic has been reversed.
As I checked converted Byte arrangment, converted byte has been reversed after encoding.
for example, if 54321(please imagine these would be Arabic) and encoding these letters,
Byte arrangement [1][2][3][4][5] instead of [5][4][3][2][1], something like this.

anybody help me out?!!
My boss is waiting for me to kill if I don`t fix this problem.

Posted 9-Aug-10 19:18pm

TaeGyu Kang

Updated 9-Aug-10 22:50pm

LittleYellowBird

v2

Add a Solution

Comments

Sandeep Mewara 10-Aug-10 9:35am

If he tries to kill you then ask him to fix it before doing the honor! :P

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

E.F. Nijboer · Answer 1 · 2010-08-10T09:56:00

Isn't it kind of logical? The English language is read LTR (left to right) and Arabic RTL (right to left) and since the serial port doesn't have support for something like like html does this is something you have to do yourself. I guess you could reverse the string after you get it with BigEndianUnicode, so reversing the byte array is correcting it, making it possible to read it as little endian on the receiving side. This would be for the arabic text only of course.

http://www.tertullian.org/rpearse/RightToLeft_Syriac/right_to_left.htm[^]

http://msdn.microsoft.com/en-us/library/system.text.encoding.bigendianunicode%28v=VS.71%29.aspx[^]

http://msdn.microsoft.com/en-us/library/system.text.encoding.bigendianunicode%28v=VS.71%29.aspx[^]

Good luck!

Ryan McBeth · Answer 2 · 2010-08-10T10:40:00

I'll give you another option. Does this receipt printer print monochrome bitmap images?

Why not write the Arabic text to a bitmap, then send the bitmap to the printer? This will guarantee that the text you write will be the text that prints. You can even flip it, reverse it, or turn it 90 degrees, because we both know that the customer is going to want that eventually anyway.

It's been about five years since I last did this, and it was on a Printech printer over a serial cable or bluetooth from a Windows CE device. Images were slow to print compared to text. This will be compounded if you have a customer tapping his foot waiting for a receipt, but transmission speed might have improved since I did this. But there is a way around this as well. Some printers have a memory buffer that you can load with images. If you preload Arabic images for words like "Total" or "Subtotal" in the memory buffer, all you have to do is send a command, and the items will print without having to send the whole bitmap.

Ryan

Help - Arabic Print Ploblem

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0