Question

I’m trying to send an image to wcf to use OCR.
For now, I succeeded in transforming my image into a byte[] and sending it to the server using wcf. Unfortunately, it works for an array whose size is <16Kb and doesn’t work for an array >17Kb.

I’ve already set the readerQuotas and maxArrayLength to its maximum size in web.config on the server size.

Do you know how to send big data to a wcf server, or maybe any library to use OCR directly on wp7?

Answer 1

Finaly solved.
You have to update your web.config to allow the server to receive big data. And then you have to use the Stream type in your WCF and byte[] type in your WP7. Types will match and both WCF or WP7 will agree to receive and send it.

In WCF :

public string ConvertImgToStringPiece(Stream img)
{
     //.....
}

In WP7 :

Service1Client proxy = new Service1Client();    
proxy.ConvertImgToStringPieceCompleted += new EventHandler<ConvertImgToStringPieceCompletedEventArgs>(proxy_ConvertImgToStringPieceCompleted);    
proxy.ConvertImgToStringPieceAsync(b); //b is my Byte[], more thant 17Kb.