Hello FPC-Pascal, Friday, December 31, 2010, 2:03:27 PM, you wrote:
>> You can create the same effect using trampolines, but unless fpc has a >> way to create trampolines you will be forced to use assembler (I was >> using them in assembler in the past with Delphi). With this >> trampolines you create a different callback pointer for each callback >> and in this callback the Self pointer is "hardcoded" and the "class >> callback" called, which creates the effect that the callback is >> connected with the class. >> I do not know if all platforms support code execution in data memory :-? DB> Unfortunately I need a platform independent method to handle DB> this. So assembler is not really the way I want to go, unless it DB> proves to be the only way. After thinking a bit in the problem, you do not need assembler, but you will need to write a wrapper for each callback call that setup some kind of trampoline different for each callback. Just for the experiment I'll try to mockup something that should work ( if I'm able :) ). -- Best regards, José _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
