A plugin may implement an OnPluginMessage() function and register it as a Hook to process plugin messages
			from the players. The function is then called for every plugin message sent from any player.
		 
 Callback function
The default name for the callback function is OnPluginMessage. It has the following signature:
 function MyOnPluginMessage(Client, Channel, Message) 
 Parameters:
| Name | Type | Notes |  
| Client | cClientHandle | The client who sent the plugin message |  
| Channel | string | The channel on which the message was sent |  
| Message | string | The message's payload |  
 
			If the function returns false or no value, other plugins' callbacks are called. If the function
			returns true, no other callbacks are called for this event.
		 
 Code examplesRegistering the callback
cPluginManager:AddHook(cPluginManager.HOOK_PLUGIN_MESSAGE, MyOnPluginMessage); 
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