> ahhh! that helps to explain what the compiler error was that i was seeing... so i may need two different types if each procedure called from centralControl has different parameters? won't that cause a conflict if the parameters are not the same or are in different ordering or even if some procedure doesn't have parameters at all?
Yes, of course. If you want to implement something like callback, the parameters have to be consistent. You can't pass arbitrary procedure as it would violate the type safe property. One idea would be to have all possible procedures implement the same parameter list, but only use some of them in the implementation. This could slow down the processing a bit but if speed is not really an issue I don't think you should care. -- View this message in context: http://free-pascal-general.1045716.n5.nabble.com/how-to-pass-a-procedure-address-and-execute-it-tp5718103p5718117.html Sent from the Free Pascal - General mailing list archive at Nabble.com. _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
