Have you tried with 'DIG_Out_Prt (short Board, short Port, long Pattern)' ?
This should be useful for you. In your example sending DIG_Out_Prt (1, 0, 1)
should perform your task.
The only problem is that there's not a function that 'reads' the actual
state of an output port, so if the restanting bits of the port are
significant and should not be changed, you must keep trace in your
application of the actual state of all bits.
One simple solution shoul be to maintain a global long to store the state of
the port, then perform bitwise operation to manage individually each output
line and use always DIG_Out_Prt.
Roberto
