#include <windows.h>
#include <iostream>
#include <stdlib.h>
#include <string.h>
#include <winver.h>

struct Var {
    WORD  wLength; 
    WORD  wValueLength; 
    WORD  wType; 
    WCHAR szKey[11]; 
    WORD  Padding[1];
    DWORD Value[1];
}; 

void print_file_version(char *file_name)
{
    LPSTR   lpVersion;
    DWORD   dwVerHnd=0;
    UINT    uVersionLen;

    DWORD dwVerInfoSize = GetFileVersionInfoSize (file_name, &dwVerHnd);
    if (!dwVerInfoSize)     // Cannot reach the DLL file
        exit(1);


    LPSTR lpstrVffInfo =
           (LPSTR) new char[dwVerInfoSize];  // Alloc memory for file inf

    if (!GetFileVersionInfo(file_name, dwVerHnd, dwVerInfoSize, lpstrVffInfo)) {
        delete [] lpstrVffInfo;
        exit(2);	// Cannot read the file information - 
                        // wierd, since we could read the information size
    }

    		/* The below 'hex' value looks a little confusing, but
		   essentially what it is, is the hexidecimal representation
		   of a couple different values that represent the language
		   and character set that we are wanting string values for.
		   040904E4 is a very common one, because it means:
			 US English, Windows MultiLingual characterset
		   Or to pull it all apart:
		   04------        = SUBLANG_ENGLISH_USA
		   --09----        = LANG_ENGLISH
		   ----04E4 = 1252 = Codepage for Windows:Multilingual
        */

    unsigned char *translation;
    UINT translation_len = sizeof(translation);

    if (!VerQueryValue(lpstrVffInfo,
                (LPSTR) (TEXT("\\VarFileInfo\\Translation")), 
                (LPVOID *)&translation, (UINT *)&translation_len)) {
        delete [] lpstrVffInfo;
        exit(4);     // Query was unsuccessful
    }

    TCHAR key_name[256];
    sprintf(key_name, TEXT("\\StringFileInfo\\%02X%02X%02X%02X\\FileVersion"),
	int(translation[1]), int(translation[0]), int(translation[3]), int(translation[2]));

    if (!VerQueryValue(lpstrVffInfo,  
                (LPSTR) key_name, 
                (LPVOID *)&lpVersion, (UINT *)&uVersionLen)) {
        delete [] lpstrVffInfo;
        exit(5);     // Query was unsuccessful
    }

    std::cout << lpVersion << std::endl;

    delete [] lpstrVffInfo;
}

int main(int argc, char *argv[])
{
    while (--argc > 0)
	print_file_version(*++argv);

    return 0;
}