Signals & Callbacks - Help!!

[jalkadir gosonic ca]

I am trying to hook the 'clicked' signal of a button to a callaback
function that receives a std::string value that will be displayed in a
Dialogbox. I have tried this:

callback function
~~~~~~~~~~~~~~~~~
gboolean MessageInfo(std::string& msg){...}


g_signal_connect(GTK_OBJECT(btnCreateAccount), "clicked",
                      GTK_SIGNAL_FUNC(MessageInfo), NULL);

But this does not work, can anyone help?


TIA