Le 17/08/2019 à 19:39, James Richters a écrit :
I think maybe it is the calling convention... First I tried to change libusboop.pas (libusb.pas is the old unit, libusboop.pas is the one it uses) to stdcall, I was unable to compile it, I get an error libusboop.pas(1456,28) Error: Incompatible types: got "<address of procedure(Plibusb_transfer);StdCall>" expected "<procedure variable type of procedure(Plibusb_transfer);CDecl>" libusboop.pas(1726) Fatal: There were 1 errors compiling module, stopping
Yes , this is because extdecl is defined a first time in libusb.pas line 45 and a second time in libusboop.pas line 21. If you change it in libusboop, you need to change it accordingly in libusb.pas.
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