C to ctype conversion

typedef void * (*MALLOCFUNCPTR)( size_t size );

I have a C function defined as below:
void DLL_ENTRY UploadData( BOOL *pChangeCountError,
                           MALLOCFUNCPTR pMf,
                           ulong *pMsgLen,
                           uchar **pMsgData );

I want to implement CType interface to this function to access it via
Python. How can I convert these arguments to the CType for python?

Any help is greatly appreciated.

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