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# CStruct Examples
require 'windows/system_info'
require 'cstruct/win32struct'
include Windows::SystemInfo
# OSVERSIONINFOEXA in VC6 's SDK
#typedef struct _OSVERSIONINFOEXA {
# DWORD dwOSVersionInfoSize;
# DWORD dwMajorVersion;
# DWORD dwMinorVersion;
# DWORD dwBuildNumber;
# DWORD dwPlatformId;
# CHAR szCSDVersion[ 128 ]; // Maintenance string for PSS usage
# WORD wServicePackMajor;
# WORD wServicePackMinor;
# WORD wReserved[2];
#} OSVERSIONINFOEXA;
class OSVERSIONINFOEXA < Win32Struct
DWORD :dwOSVersionInfoSize
DWORD :dwMajorVersion
DWORD :dwMinorVersion
DWORD :dwBuildNumber
DWORD :dwPlatformId
CHAR :szCSDVersion,[ 128 ]
WORD :wServicePackMajor
WORD :wServicePackMinor
WORD :wReserved,[2]
end
ver_info_ex = OSVERSIONINFOEXA.new do |st|
st.dwOSVersionInfoSize = OSVERSIONINFOEXA.__size__ # __size__ is an alias for method 'size'
end
#ANSI Version: GetVersionExA
GetVersionExA(ver_info_ex.__data__) # __data__ is an alias for method 'data'
puts "<OS Version Infomation>"
puts "Major Version:#{ver_info_ex.dwMajorVersion}"
puts "Minor Version:#{ver_info_ex.dwMinorVersion}"
puts "Build Number:#{ver_info_ex.dwBuildNumber}"
puts "Platform Id:#{ver_info_ex.dwPlatformId}"
puts "CSD Version:#{ver_info_ex.szCSDVersion.to_cstr}" # to_cstr return a string(C Style)
puts "ServicePack Major:#{ver_info_ex.wServicePackMajor}"
puts "ServicePack Minor:#{ver_info_ex.wServicePackMinor}"
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