python使用ctypes模块调用windowsapi获取系统版本示例

python使用ctypes模块调用windows api GetVersionEx获取当前系统版本,没有使用python32

#!c:/python27/python.exe
#-*- coding:utf-8 -*-

"通过调用Window API判断当前系统版本"
# 演示通过ctypes调用windows api函数.
# 作者已经知道python32能够实现相同功能
# 语句末尾加分号，纯属个人习惯
# 仅作部分版本判断，更详细的版本判断推荐系统OSVERSIONINFOEX结构体
import ctypes;
class OSINFO(ctypes.Structure):
 _fields_ = [
 ("dwOSVersionInfoSize",ctypes.c_long),
 ("dwMajorVersion",ctypes.c_long),
 ("dwMinorVersion",ctypes.c_long),
 ("dwBuildNumber",ctypes.c_long),
 ("dwPlatformId",ctypes.c_long),
 ("szCSDVersion",ctypes.c_char*128)
 ];
def GetSystemVersionString():
 kernel32 = ctypes.windll.LoadLibrary("kernel32.dll");
 os = OSINFO();
 os.dwOSVersionInfoSize = ctypes.sizeof(os);
 if kernel32.GetVersionExA(ctypes.byref(os))==0:
 return "Null Version";
 if os.dwPlatformId==1: #windows 95/98/me
 if os.dwMajorVersion==4 and os.dwMinorVersion==0:
 verStr = "windows 95";
 elif os.dwMajorVersion==4 and os.dwMinorVersion==10:
 verStr = "windows 98";
 elif os.dwMajorVersion==4 and os.dwMinorVersion==90:
 verStr = "windows me";
 else:
 verStr = "unknown version";
 elif os.dwPlatformId==2: #windows vista/server 2008/server 2003/xp/2000/nt
 if os.dwMajorVersion==4 and os.dwMinorVersion==0:
 verStr = "windows nt 4.0";
 elif os.dwMajorVersion==5 and os.dwMinorVersion==0:
 verStr = "windows 2000";
 elif os.dwMajorVersion==5 and os.dwMinorVersion==1:
 verStr = "windows xp";
 elif os.dwMajorVersion==5 and os.dwMinorVersion==2:
 verStr = "windows 2003";
 elif os.dwMajorVersion==6 and os.dwMinorVersion==0:
 verStr = "windows vista"; # or 2008
 elif os.dwMajorVersion>=0:
 verStr = "windows 7";
 else:
 verStr = "unknown version";
 else:
 return "unknown Version";
 return verStr+" build"+str(os.dwBuildNumber)+" "+ctypes.string_at(os.szCSDVersion);
if __name__ == "__main__":
 print(GetSystemVersionString());

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