Qt获取文件版本号和文件版本号的方法：

QString getFileVertion(QString fullName)
{
QString result = "";
char* pData = nullptr;
do
{
DWORD dwLen = GetFileVersionInfoSize(fullName.toStdWString().c_str(), 0);
if (0 == dwLen)
{
break;
}
pData = new char[dwLen + 1];
BOOL bSuccess = GetFileVersionInfo(fullName.toStdWString().c_str(), 0, dwLen, pData);
if (!bSuccess)
{
break;
}
struct LANGANDCODEPAGE
{
WORD wLanguage;
WORD wCodePage;
} *lpTranslate;
LPVOID lpBuffer = nullptr;
UINT uLen = 0;
bSuccess = VerQueryValue(pData, (TEXT("\\VarFileInfo\\Translation")), (LPVOID*)&lpTranslate, &uLen);
if (!bSuccess)
{
break;
}
QString str1, str2;
str1.setNum(lpTranslate->wLanguage, 16);
str2.setNum(lpTranslate->wCodePage, 16);
str1 = "000" + str1;
str2 = "000" + str2;
QString verPath = "\\StringFileInfo\\" + str1.right(4) + str2.right(4) + "\\ProductVersion";//ProductVersion：产品版本号 FileVersion：文件版本号
bSuccess = VerQueryValue(pData, (verPath.toStdWString().c_str()), &lpBuffer, &uLen);
if (!bSuccess)
{
break;
}
result = QString::fromUtf16((const unsigned short int *)lpBuffer);
} while (false);
if (nullptr != pData)
{
delete pData;
}
return result;
}