[Joe_]

There isn't a tutorial for the "third" one..

Try using:

Code:

public OnPlayerCommandText(playerid, cmdtext[])
{
   if(!strcmp(cmdtext, "/dialogtest", true))
   {
     ShowPlayerDialog(playerid, dialogid, DIALOG_STYLE_MSGBOX, "Test Caption", "Test Info", "Test 1", "Test 2");
     return 1;
   }
   return 1;
}

Under a command to see where the writing will be.