## Input/Output Device Driver Reference

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### Double Click Locking

This option is the same as single click locking, except that the conditions for reporting X,Y data are:

After the click-lock time has been exceeded
If the touch coordinate moves outside the click-lock area
If the button-down threshold is exceeded for a second time, the touch having been taken below the button-up threshold in the interim.

The third condition enables the X,Y coordinates of two successive touches to be locked at the same value. The touch need not be removed from the screen completely; it is sufficient just to go below the button-up threshold.