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How to pass parameters to DLL-s, maked with MinGW c++

How to pass parameters to DLL-s, maked with MinGW c++

(OP)
Does anybody knows how to pass parameters to DLL, maked with MinGw GCC/G++ compiler. I tried diferent calling conventions (__stdcal, __cdecl, __pascal), but always i resieve 1-st parameter=pcount, second=1st caled, third=Something (usualy 1), forth=2nd caled, 5th=something(usualy 1) and so on. VO program works fine if i modify only return value, if i try to modifi value of parameter (via PTR) i recieve Access Violation.

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