right click menu ( no context menu for stylus ) problem? help !

Hi all:
am using the device with usb keyboard and usb mouse,
also with the touchpanel. All of them can work.
The problem is: when click stylus down for long enough time,there is no
context menu
created.But with the usb mouse, when click the left mouse down for a long
time, it
can display the context menu. Why dont do this for stylus?

When click stylus down for a long time, it can see ce is drawing the a
lot of small
track rectangle around the click point.
Anyone can help me? thanks!


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