Proface FP3900 - 19 Flat Panel" - Manual (Page 61)

5.1 Touch Interface Data
5-6 FP-2500/FP-2600 Series User Manual
Function 8101h Touch panel input ( instant return )
Returns touch coordinates. Will quit the function if there is no input.
< input > AX = 8101h
< output > AH = 0 : input
1 : no-input
BX = Y : coordinate ( 0 - 479 )
DX = X : coordinate ( 0 - 639)
CX = Number of effective input buffer for the analog touch panel.
Function 8102h Non-renewing touch panel input
Sends the position coordinates, and does not renew the panel's input buffer.
< input > AX = 8102h
< output > AH = 0 : input
1 : no-input
BX = Y : coordinate ( 0 - 479 )
DX = X : coordinate ( 0 - 639)
CX = Number of effective touch panel input buffers.
Function 8500h Detection of touch panel condition
Returns the touch panel condition
< input > AX = 8500h
< output > AH = status at 640 x 480 mode
Bit 1 Bit 0 Contents
0 0 touched
0 1 no-change
1 0 (not used)
1 1 released
Function 0200h Input buffer clear
Clears the touch panel's input buffer.
< input > AX = 0200h
< output > AH = 0 : normal end