alec82 wrote
how control parallel and use it's interrupt in delphi
The TVicLPT component is a programming tool that gives you easy to access and control over parallel port hardware (LPT) directly from a Win32 application.
TVicLPT's main capabilities are:
* detection of all LPT ports at each of the standard addresses
* adding a non-standard LPT port
* detecting all possible LPT modes including SPP, PS/2, Fast Centronix, EPP, ECP
* simple switching to any possible mode without the bit manipulation
* direct access "by name" to any hardware port of current LPT
* simple direct access to any bit of any port of current LPT
* direct access and manipulation of any pin on LPT D-25 connector
* handling of hardware interrupts incoming from the LPT ACK line.