🚀 go-pugleaf

I am writing a program in which I need to set user-defined subroutine
(function 14) of the device driver.  

The array of device driver function pointers I declared as:
    int (__far __pascal *(*touch_func)[])(int far *, int far *);

I obtain the address of the array (ax = 0xabcd, bx = 0, int 0x7f), and
all other functions seem to be working right except 14..

I set the call flag to 0x20, and the call to
	(*touch_func)[14](...)  returns 0 (ok status), but my
subroutine does not get called when the screen is touched.  Anyone have
any ideas on what I could be doing wrong, or if I'm missing something?
Thanks in advance (I hope it's the right newsgoup for the question).

Roman Rozin