Using a dll having COM functions in PYTHON

Hi,
I have written a DLL in C/C++ which uses COM internally.

While trying to call function in DLL, I have found out that COM is not getting initialised. I am initialising COM in C.

consider following example

IN C/C++

#define DLLEXPORT extern "C" __declspec(dllexport)
DLLEXPORT int Init_COM()
{
	int result = 1;

	//printf("\n*** INITIALIZING ***\n\n");
	HRESULT hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
	if (FAILED(hr))
	{
		result = -8;
		//printf("\nERROR: COM INITIALIZATION FAILED"); 
	}
        else
        {
                //do work here
        }
        
        return result;
}

DLLEXPORT int some_function()
{
        CComPtr<IPortableDeviceManager> pPortableDevice;
        .
        .
        .
        //now I call COM functions first to initialise the pointer and then to do some work
        //But because COM is not initialised this will fail
        return some_val;
}

The value returned in python in -8, meaning COM initialization Failed. I am very new to python and hence don't know how to use function written in c/c++ in a DLL using COM in python! Please HELP..

IN Python I import the DLL

from ctypes import *
cdll.LoadLibrary("MY_DLL.dll") as my_dll #or import MY_DLL.dll

return_val = my_dll.Init_COM() #returns -8
return_val = my_dll.some_function() #wont work

I dont exactly remember python syntax so there might be some error above!
Thank You

Tags: C++, C, Python, COM