I don't know what «String» is — it's not a standard C type or a WinAPI type — but it's definitely not the same as «uint32_t» ("L").

I don't know what «Long» is — it's not a standard C type or a WinAPI type either — but it's not necessarily the same as «uint32_t» ("L").

Could you provide more information about those types? Also, could you find out what calling convention is used? Win32::API assumes __stdcall unless you tell it it's __cdecl.

In reply to Re: Perl program calling external .dll functions by ikegami
in thread Perl program calling external .dll functions by manojghosh

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