利用WinAPI（GetFileVersionInfo）获取文件版本信息

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1)文件版本信息在Windows内部，按照以下格式保存：
例如：
2.10.0.256
->
dwFileVersionMS = 0x0002000A 高4字节 = 2 = 0x0002; 低4字节 = 10 = 0x000A
dwFileVersionLS = 0x00000100 高4字节 = 0 = 0x0000; 低4字节 = 256 = 0x0100

2）请注意要把Version.lib加到Link中。

bool GetFileVersion(const std::string& filePath,unsigned int &nFileVersionMS,unsigned int &nFileVersionLS){DWORD dwHandle;DWORD dwVersionInfoSize;dwVersionInfoSize = ::GetFileVersionInfoSize((char*)filePath.c_str(), &dwHandle);if (0 == dwVersionInfoSize){return false;}char* pVersionInfo = new char[dwVersionInfoSize];if (FALSE == ::GetFileVersionInfo((char*)filePath.c_str(), 0, dwVersionInfoSize, pVersionInfo)){delete[] pVersionInfo;return false;}VS_FIXEDFILEINFO* pVersion = NULL;unsigned int nLen;if(FALSE == ::VerQueryValue(pVersionInfo, "//", (void**)&pVersion, &nLen)){delete[] pVersionInfo;return false;}nFileVersionMS = pVersion->dwFileVersionMS;nFileVersionLS = pVersion->dwFileVersionLS;delete[] pVersionInfo;return true;}