Question

I’m trying to get the version information for a module in some C++ code (basically this) and I’m getting compile time errors. Here’s the code:

WCHAR fileName[MAX_PATH];
HMODULE module = GetModuleHandle(L"some-module");
DWORD size = GetModuleFileName(module, fileName, MAX_PATH);

And the compiler is returning:

    error C2664: 'GetModuleFileNameW' : cannot convert parameter 1 from 'WHANDLE' to 
    'HMODULE'
    Conversion from 'void*' to pointer to non-'void' requires an explicit cast

What is going on here? GetModuleHandle returns HMODULE and that is the documented first parameter to GetModuleFileName.

Here is the compiler version for what its worth:

    Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.30319.01 for 80x86
    Copyright (C) Microsoft Corporation.  All rights reserved.

Thanks!

Answer 1

There must be something funky going on with your includes or your libraries, because this compiles and runs fine here:

// Scratch.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "windows.h"

int _tmain(int argc, _TCHAR* argv[])
{
    WCHAR fileName[MAX_PATH];
    HMODULE module = GetModuleHandle(L"some-module");
    DWORD size = GetModuleFileName(module, fileName, MAX_PATH);
    return 0;
}