XMLKEYS reference - extracted from Flight Simulator X SDK
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For the keyboard the input definition can include a maximum of two modifiers (Shift, Ctrl, Alt) and two keys (case sensitive).

XML examples = 'Shift+a'; 'Ctrl+B'; 'z'; 'Space'; 'F1'; 'Ctrl+Shift+n'; etc.

For joysticks the input definition is in the form 'joystick:n:input[:i]'. Where n is the joystick number (starting from 0), input is the input name, and i is an optional index number that might be required by the input name (joystick:0:button:0 for example). 
The input name can be one in the following table:

	
Input Name  		Description 				Range of values  
=====================================================================================================
Button 		One of the joystick buttons, configured 	Not applicable  
		from 0. 					

POV 		Point of view switch (often called the 		0 facing ahead
		hat switch).  					4500 forward right					
								9000 right
								13500 rear right
								18000 rear
								22500 rear left
								27000 left
								31500 forward left
 
Slider 		The variable position slider on the joystick.  	The actual values returned 
								can vary widely on the joystick, 
								though the limits are 32K 
								(pulled back to the limit) to -32K 
								(maximum forward limit).  

XAxis, 		Movement of the joystick in the X, Y, or Z	The limits in the Y axis are 32K 
YAxis or 	directions. For most joysticks the movement	(pulled back) to -32K (pushed forward).
ZAxis    	is left or right for the XAxis and forward	The limits in the X axis are -32K 				
		or backward for the YAxis, with no values 	(full left) to 32K full right). 
		for the ZAxis.					Depending on the joystick though, the 
								limits may be significantly less than 
								these values.
	  				 
RxAxis,		Rotation of the joystick about the X, Y,	For the Z axis, the limits are -32K  
RyAxis or 	or Z axis.For most joysticks there is only 	(rotated left to the maximum) to 32K 
RzAxis		rotational movement around the Z axis, with	maximum (rotated right to the maximum).
		with no values for the X or Y axis.		Again, actual limits depend on the joystick.


