On Thu, April 10, 2008 01:11, Stephano wrote: . . > 4- Windows SerOpen function (based on CreateFile) returns an > INVALID_HANDLE_VALUE if the device could not be found. How to unify for > both Linux & Windows? Is it safe to return instead -1 (as in the Linux > case)? . .
If I read the Windows unit sources correctly, INVALID_HANDLE_VALUE = -1 too. However, I believe that you might consider returning UnusedHandle constant defined in System unit for all the platforms (that's -1 for at least most of them anyway, but I believe that it may be still better from portability point of view to refer to it using this constant). Tomas _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
