REALLY struggling with some XML code in the Modeldef file here ......... I have created a new part with both animation and mousclick area, however.. even though it uses the same code as the previous part (and a new checked Guid) the mouserect wont show in the attachtool drop down list :( I've tried changing the name the tooltip everything to no avail .. anyone have a clue ????WORKING CODE ------- shows in drop down list and both animation and click spot works just fine

<PartInfo>		<Name>Emergency_Chute_Handle</Name>		<AnimLength>100</AnimLength>		<Animation>			<Parameter>				<Sim>					<Variable>SPOILERS HANDLE POSITION</Variable>					<Units>percent</Units>				</Sim>				<Lag>100</Lag>			</Parameter>		</Animation>			<MouseRect>				<Cursor>Hand</Cursor>				<TooltipText>EMERGENCY PARACHUTE</TooltipText> 				<MouseFlags>LeftSingle</MouseFlags>				<CallbackCode>				(L:RBF_pin, bool) 1 == if{ (>K:SPOILERS_ON) }				</CallbackCode>			</MouseRect></PartInfo>

NON WORKING CODE ------- CLICK SPOT does NOT show in down list BUT animation works just fine

<Partinfo>		<Name>Pin_remove_before_flight</Name>		<AnimLength>100</AnimLength>		<Animation>			<Parameter>				<Sim>					<Variable>SPOILERS HANDLE POSITION</Variable>					<Units>percent</Units>				</Sim>				<Lag>100</Lag>			</Parameter>		</Animation>			<MouseRect>				<Cursor>Hand</Cursor>				<TooltipText>REMOVE BEFORE FLIGHT</TooltipText> 				<MouseFlags>LeftSingle</MouseFlags>				<CallbackCode>				(L:RBF_pin, bool) 0 == if{ (>L:RBF_pin) }				</CallbackCode>			</MouseRect></Partinfo>

Anyone ???????

Possibly a syntax error? You aren't supplying a value to send to the L:Var, and you didn't specify the units for the L:Var,Units (required!):

<CallbackCode>    (L:RBF_pin, bool) 0 == if{ 1 (>L:RBF_pin,bool) } </CallbackCode> 

And a logic error? What your code does is set RBF_pin to 0... when it's 0What you probably want is:

(L:RBF_pin, bool) 0 == if{ 1 (>L:RBF_pin, bool) }

or

(L:RBF_pin, bool) ! (>L:RBF_pin, bool}

Having said that I've no idea what you're trying to achieve

As said by Bill, failing to specify the "unit" when writing a value into an L:Var, is most likely your problem.This has probably been THE most common (and hard-to-find) error I make/made myself when writing XML gauges :( Rob