Thank you very much for your explanation and code. I understand this better now, and the code works for me to.
/Kjell


>I use the following in the MouseDown event to detect the node:
>
>

>LPARAMETERS pnButton, pnShift, pnX, pnY
>LOCAL loNode
>IF pnButton = 2
>	loNode = this.HitTest(GKKPixelsToTwips(pnX,"H"),GKKPixelsToTwips(pnY,"V"))
>	IF VARTYPE(loNode) = "O"
>		this.RightClkMenu(loNode)
>	ENDIF
>ENDIF
>

>
>This is used to call a right-click menu. I have a UDF to get the pixels to Twips.