maisseb:
First of all, thanks for your help !PaulS:
The Arduino WiFi Shield library is the only library which work with the WiFi Shield. So the only solution is to try with this library, but I didn't found the transfer mechanism on it...
The WiFi library establishes the connection between the Arduino and the PC.
The UDP library manages the transfer of packets. It doesn't give a rats ass what's in the packet.
You've got a packet that contains some data that you don't know how to process. Why not look for a library that does know? The one that Sembazuru mentions bears looking at.
I agree with you, but the data is not received on the WiFi Shield and on the Ethernet Shield with the same protocol, and with the last Arduino library (which is the only one including Udp exploitation), all files are like "merged", they works together. That's why I'm not able to import an Ethernet library (modified) to work with the WiFi Shield, and on the link that Sembazuru sent (thanks to you) we can see here touchOSC | CNMAT that all files are build to work with Ethernet...
I'm starting to go round in circles because of I'm not familiar with exploitation and the modification of open transmission libraries. And don't find much support and examples for this Shield
It is true that the UDP examples we included in the first OSC for Arduino library release use the Standard ethernet library but we carefully factored the OSC handling itself to be independent of the transport protocol. It should be easy to adapt to any I/O that uses the Stream class.