[Playerstage-users] How to use the relay driver?

[<gi...@gm...>]

Hi,

I've checked out current player source code under cvs with the new relay  
driver.

I'm using this driver with the opaque interface exactly with the  
OpaqueProxy for c++.
Now I want to send something from a client A to a Client B, but when i use  
the
SendCmd -method there is a error like this:

playerc error   : encoding failed on message from 51:0 with type 2:1

Here are some code lines:
    	
	// Create Client A
	PlayerClient robot1( PLAYER_HOSTNAME, PLAYER_PORTNUM );	
	// Subscribe to the opaque-driver
    	OpaqueProxy opaque_proxy1( &robot1, 0 );
	
	// Create Client B
	PlayerClient robot2( PLAYER_HOSTNAME, PLAYER_PORTNUM );
   	OpaqueProxy opaque_proxy2( &robot2, 0 );

	// I want to use a single number as data
     	uint8_t num= 5;
     	player_opaque_data_t opdata;
	opdata.data[0] = num;

     	// send data to relay driver which will broadcast the data to every  
subscribed client
     	opaque_proxy1.SendCmd( &opdata );

In the config file I use the following lines:

driver
(
	name "relay"
	provides ["opaque:0"]
)

Have someone a idea what I'm doing wrong? Or maybe have someone a short  
example code?

Thanks a lot for every response.