Carrol Touch Modular Flat Panel Specifications download pdf (Page 231)

Appendix D - CTKERN Function Reference CARROLL TOUCH

D-36 Touch System Programmer’s Guide

SetTouchState (2)

Description

This function sets the touch state that CTKERN reports. It is useful for

debugging, or any other situation where it is necessary to force the

touch state to be a particular value without a touch actually occurring.

Call with

AL = 2 (function number).

BH = Touch pressure (z-axis).

BL = Touch state.

00 = Not touched (x, y set to last place the screen was

touched).

01 = Touched (x, y set to where the screen is touched).

02 = Non-contiguous (x, y undefined).

CX = X coordinate.

DX = Y coordinate.

Notes

If calling this function causes the touch state to change and a CTKERN

user event handler is installed and enabled, the user event handler is

called just as if the change in touch state had resulted from an actual

touch.

You must ensure that the touch coordinates passed in this function are

compatible with the scaling mode and parameters that are in effect at

the time that this function is called. This function performs no

parameter checking.

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Carrol Touch Modular Flat Panel Specifications Page 231