From: jglueck@... (=?ISO-8859-1?Q?Bernhard_Gl=FCck?=)
Date: 2001-09-03T21:52:27+09:00
Subject: [ruby-talk:20770] Calling member methods from C++

Some quetsions have been solved for me, but my message system does not
work yet..Anyone knows how to call a Ruby Class method from C++ ? Here
is my code

RUBY:

class SpaceShip < Rs::Mesh
   def OnFire()
      Rs:Log("Just a dummy log message to show its working")
   end
end


s = SpaceShip.new()


C++

	      String callString = "On";
		callString += m_msg;
		callString += "()";
		
		// Generated for the method
		ID callId = rb_intern( callString );

		// Now create the parameter array for the call...
		Array<VALUE> args;

		LogInfo(("Calling ruby object: %s::%s",rb_class2name( val ),(const  
  char *)callString ) );
	
		if ( rb_respond_to( val,callId ) )
		{
			// And make the script call
			rb_funcall2( val,callId,args.Size(),args.Begin() );
		}

m_msg contains: "Fire" 
val ist the VALUE of the s variable in Ruby ..

However rb_respond_to always returns false ? Why ? No second ruby
interpreter is running ....

And the logmessage reads: Calling ruby object: SpaceShip::OnFire()


Anyone is able to help me to get that working ?