Getting the System Version

The following example uses the GetVersionEx function to obtain the current version of Windows and then displays the version number in a message box.

OSVERSIONINFO osvi;

char szVersion [80];

memset(&osvi, 0, sizeof(OSVERSIONINFO));

osvi.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);

GetVersionEx (&osvi);

if (osvi.dwPlatformId == VER_PLATFORM_WIN32s)

wsprintf (szVersion, "Microsoft Win32s %d.%d (Build %d)",

osvi.dwMajorVersion,

osvi.dwMinorVersion,

osvi.dwBuildNumber & 0xFFFF);

else if (osvi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS)

wsprintf (szVersion, "Microsoft Windows 95 %d.%d (Build %d)",

osvi.dwMajorVersion,

osvi.dwMinorVersion,

osvi.dwBuildNumber & 0xFFFF);

else if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)

wsprintf (szVersion, "Microsoft Windows NT %d.%d (Build %d)",

osvi.dwMajorVersion,

osvi.dwMinorVersion,

osvi.dwBuildNumber & 0xFFFF);

MessageBox( NULL, szVersion, "Version Check", MB_OK );

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