Get File Version in your code

最新推荐文章于 2023-08-26 07:45:00 发布

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本文介绍了一种使用C++实现的方法来获取Windows环境下程序文件的版本信息。通过调用GetFileVersionInfo等API函数，演示了如何从资源文件中读取FILEINFO值，并将其转换为易于理解的版本号字符串。

//////////////////////////////////////////////////////////////
//
//         File: version.cpp
//  Description: Sample code for getting version info
//      Created: 2008-1-4
//       Author: Ken Zhang
//       E-Mail: cpp.china@hotmail.com
//
//////////////////////////////////////////////////////////////

/*
    The following code shows how to get FILEINFO value from resource file.

    These WIN32 functions will be used:

        * GetFileVersionInfo
        * GetFileVersionInfoSize
        * VerQueryValue
        * GetModuleFileName
 */

#include <windows.h>
#include <tchar.h>
#include <string>
#include <iostream>

#pragma comment(lib, "version.lib")
using namespace std;

bool GetFileVersion(HMODULE hModule, WORD *pBuffer)
{
    TCHAR fname[MAX_PATH];
    VS_FIXEDFILEINFO *pVi;
    DWORD dwHandle;
    string str;

    if (::GetModuleFileName(hModule, fname, MAX_PATH))
    {
        int size = GetFileVersionInfoSize(fname, &dwHandle);

        if (size > 0) {
            BYTE *buffer = new BYTE[size];
            
            if (GetFileVersionInfo(fname, dwHandle, size, buffer)) {
                if (VerQueryValue(buffer, _T("//"), (LPVOID *)&pVi, (PUINT)&size)) {
                    pBuffer[0] = HIWORD(pVi->dwFileVersionMS);
                    pBuffer[1] = LOWORD(pVi->dwFileVersionMS);
                    pBuffer[2] = HIWORD(pVi->dwFileVersionLS);
                    pBuffer[3] = LOWORD(pVi->dwFileVersionLS);

                    delete buffer;
                    return true;
                }
            }

            delete buffer;
        }
    }

    return false;
}

string GetFileVersion(HMODULE hModule)
{
    string str;
    WORD buffer[4];

    if (GetFileVersion(hModule, buffer))
    {
        char str2[32];

        for (int i = 0; i < sizeof(buffer)/sizeof(WORD); i++)
        {
            itoa(buffer[i], str2, 10);
            str += str2;

            if (i != sizeof(buffer)/sizeof(WORD) - 1)
            {
                str += ".";
            }
        }
    }

    return str;
}

void main()
{
    cout << "Current version is: " << GetFileVersion(::GetModuleHandle(NULL)) << endl;
}