Question

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Calling private method in C++

I have a DLL, and in that DLL they exposed some functions but one of them is private. The function is C_MORPHO_Device::InitUsbDevicesNameEnum(PUL o_pul_NbUsbDevice).

How can I call this InitUsbDevicesNameEnum function in my application?

Answer 1

Is the private method also exported? I doubt it (why would they export a private method?). But if it is exported, you can use the dumpbin /exports command to see the decorated method name, then use GetProcAddress to get a function pointer to the method and call on an instance of the class. Something like:

HMODULE hModule = LoadLibrary(L"thedll.dll");
(C_MORPHO_Device::*pMethod)(PUL) = reinterpret_cast<(C_MORPHO_Device::*)(PUL)>(GetProcAddress(hModule, L"InitUsbDevicesNameEnum@_ABunchOfSymbolsHere"));

C_MORPHO_Device device;
(device.*pMethod)(...);