[fpc-pascal] Converting Delphi7 code to FreePascal with interfacing to protection key?

[Sven Barth]

Bo Berglund via fpc-pascal <fpc-pascal at lists.freepascal.org> schrieb am
Di., 21. März 2023, 23:54:

> 1) How should I go about translating the above to current FreePascal
> syntax?
>
> This involves:
> { Force FAR calls }
> {$F+}
>
> {$L SPROMEPS.OBJ}  { LINK WITH THE SUPERPRO OBJECT FILE }
>

These won't be a problem. Both Delphi and FPC (for non-i8086) will skip the
$F directive as it's not necessary on 32- or 64-bit systems.

The object file won't be a problem for FPC on i386-win32 because it will be
a COFF file which is the default.


> 2) Is there a way to translate/convert the 32 bit Windows SPROMEPS.OBJ
> file into
> a 64 bit one such that it could be used for a 64 bit fpc compiler?
> It is the interface to the protection key driver on the Windows system...
>

Aside from asking the company for a 64-bit variant or reverse engineering
the object file, no. How large is that object file? Maybe it's only a
relatively simple interface to the driver...


> It does work for our 32 bit Delphi7 programs on Windows 10 x64, so there
> must be
> some 32<->64 bit handling in Windows maybe?
>

Are you really sure there's a driver involved? When you install it is there
a driver binary for both 32- and 64-bit? Cause 64-bit Windows *can not*
load 32-bit drivers.

Regards,
Sven

>
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