C # obtain the hard disk number, CPU number and type, memory size, and usage

If C # is used to obtain the environment and attributes of the system, many questions are asked online, but most of the questions are not answered. Recently, I just wanted to do something about it, I have sorted it out and provided it to you. I hope to give you some reference: first, I need to define several structures (struct) to facilitate dllimport to be called as the return parameter. The following code is cpuinfo. CS using system; using system. configuration; using system. runtime. interopservices;/** // *** layoutkind. automatic: to improve efficiency, allow the running state to reorder type members * Note: never use this option to call uncontrolled Dynamic Linked Library functions. * Layoutkind. explicit: sorts the type members of each domain by fieldoffset attribute * layoutkind. Sequential: sorts the type members in the memory that are not under the jurisdiction of the type definition. * // ** // <Summary> // defines the CPU information structure. // </Summary> [structlayout (layoutkind. sequential)] public struct cpuinfo... {/** // <summary> // oem id /// </Summary> Public uint dwoemid; /** // <summary> // page size // </Summary> Public uint dwpagesize; Public uint lpminimumapplicationaddress; Public uint lpmaximumapplicationaddress; Public uint dwactiveprocessormask; /** // <summary> // Number of CPUs /// </su Mmary> Public uint dwnumberofprocessors;/** // <summary> // CPU type // </Summary> Public uint dwprocessortype; Public uint dwallocationgranularity; /** // <summary> // CPU level // </Summary> Public uint dwprocessorlevel; Public uint dwprocessorrevision;} memoryinfo. CS using system; using system. configuration; using system. runtime. interopservices;/** // *** layoutkind. automatic New sorting * Note: never use this option to call uncontrolled dynamic link library functions. * Layoutkind. explicit: sorts the type members of each domain by fieldoffset attribute * layoutkind. Sequential: sorts the type members in the memory that are not under the jurisdiction of the type definition. * // ** // <Summary> // defines the memory information structure. // </Summary> [structlayout (layoutkind. sequential)] public struct memoryinfo... {/*** // <summary> ///// </Summary> Public uint dwlength; /** //// <summary> /// used memory /// </Summary> Public uint dwmemoryload; /** //// <summary> /// total physical memory size // </Summary> Public uint dwtotalphys; /** // <summary> // available physical memory size // </Summary> Public uint dwavailphys; /** //// <summary> /// the total size of the swap file /// </Summary> Public uint dwtotalpagefile; /** //// <summary> // available swap file size // </Summary> Public uint dwavailpagefile; /** //// <summary> /// Total virtual memory size // </Summary> Public uint dwtotalvirtual; /** // <summary> // available virtual memory size // </Summary> Public uint dwavailvirtual ;}

Systemtimeinfo. CS using system; using system. configuration; using system. runtime. interopservices;/** // *** layoutkind. automatic: to improve efficiency, allow the running state to reorder type members * Note: never use this option to call uncontrolled Dynamic Linked Library functions. * Layoutkind. explicit: sorts the type members of each domain by fieldoffset attribute * layoutkind. Sequential: sorts the type members in the memory that are not under the jurisdiction of the type definition. * // ** // <Summary> // defines the information structure of the system time. // </Summary> [structlayout (layoutkind. sequential)] public struct systemtimeinfo... {/** // <summary> // year // </Summary> Public ushort wyear; /** // <summary> // month // </Summary> Public ushort wmonth; /** //// <summary> // week // </Summary> Public ushort wdayofweek; /** // <summary> // day // </Summary> Public ushort wday; /** // <summary> // hour // </Summary> Public ushort whour; /** // <summary> /// minute // </Summary> Public ushort wminute; /** // <summary> // second // </Summary> Public ushort wsecond; /** // <summary> // millisecond // </Summary> Public ushort wmilliseconds;} A call class systeminfo is also defined. CS, the Code is as follows: using system; using system. configuration; using system. runtime. interopservices; using system. management; using system. text;/** // <summary> // Summary of systeminfo /// </Summary> public class systeminfo... {private const int char_count = 128; Public systeminfo ()... {} [dllimport ("Kernel32")] Private Static extern void getwindowsdirectory (stringbuilder WINDIR, int count); [dllimport ("Kernel32")] Private Static extern void getsystemdirectory (stringbuilder Sysdir, int count); [dllimport ("Kernel32")] Private Static extern void getsysteminfo (ref cpuinfo); [dllimport ("Kernel32")] private Static extern void globalmemorystatus (ref memoryinfo meminfo); [dllimport ("Kernel32")] Private Static extern void getsystemtime (ref systemtimeinfo sysinfo ); /*** //// <summary> /// query the cpu id /// </Summary> /// <returns> </returns> Public String getcpuid ()... {managementclass mclass = new managementclass ("win32_processor"); managementobjectcollection MOC = mclass. getinstances (); string cpuid = NULL; foreach (managementobject Mo in MoC )... {cpuid = Mo. properties ["processorid"]. value. tostring (); break;} return cpuid ;} /*** //// <summary> /// query the hard disk number /// </Summary> /// <returns> </returns> Public String getmainharddiskid ()... {managementobjectsearcher searcher = new managementobjectsearcher ("select * From win32_physicalmedia"); string harddiskid = NULL; foreach (managementobject Mo in searcher. get ())... {harddiskid = Mo ["serialnumber"]. tostring (). trim (); break;} return harddiskid ;} /*** // <summary> // obtain the Windows directory /// </Summary> /// <returns> </returns> Public String getwindirectory ()... {stringbuilder sbuilder = new stringbuilder (char_count); getwindowsdirectory (sbuilder, char_count); Return sbuilder. tostring ();} /*** // <summary> // obtain the system directory /// </Summary> /// <returns> </returns> Public String getsysdirectory ()... {stringbuilder sbuilder = new stringbuilder (char_count); getsystemdirectory (sbuilder, char_count); Return sbuilder. tostring ();} /*** // <summary> // obtain CPU information /// </Summary> /// <returns> </returns> Public cpuinfo getcpuinfo ()... {cpuinfo = new cpuinfo (); getsysteminfo (ref cpuinfo); Return cpuinfo ;} /*** // <summary> // obtain the system memory information /// </Summary> /// <returns> </returns> Public memoryinfo getmemoryinfo (). .. {memoryinfo = new memoryinfo (); globalmemorystatus (ref memoryinfo); Return memoryinfo ;} /*** // <summary> // obtain the system time information /// </Summary> /// <returns> </returns> Public systemtimeinfo getsystemtimeinfo (). .. {systemtimeinfo = new systemtimeinfo (); getsystemtime (ref systemtimeinfo); Return systemtimeinfo ;} /*** // <summary> // obtain the system name /// </Summary> /// <returns> </returns> Public String getoperationsysteminname ()... {operatingsystem OS = system. environment. osversion; string osname = "unknown"; Switch (OS. platform )... {Case platformid. win32windows: Switch (OS. version. minor )... {Case 0: osname = "Windows 95"; break; case 10: osname = "Windows 98"; break; Case 90: osname = "Windows ME"; break;} break; case platformid. win32nt: Switch (OS. version. major )... {Case 3: osname = "windws NT 3.51"; break; Case 4: osname = "Windows NT 4"; break; Case 5: If (OS. version. minor = 0 )... {osname = "Windows 2000";} else if (OS. version. minor = 1 )... {osname = "Windows XP";} else if (OS. version. minor = 2 )... {osname = "Windows Server 2003";} break; Case 6: osname = "Longhorn"; break;} return string. format ("{0}, {1}", osname, OS. version. tostring ());}} Top   The following example is called. For simplicity, I output the code on An ASPX page. However, this program can be called in winform: using system; using system. data; using system. configuration; using system. collections; using system. collections. specialized; using system. web; using system. web. security; using system. web. ui; using system. web. UI. webcontrols; using system. web. UI. webcontrols. webparts; using system. web. UI. htmlcontrols; using system. runtime. interopservices; public partial Class index: system. Web. UI. Page... {protected void page_load (Object sender, eventargs e)... {If (! Page. ispostback )... {systeminfo = new systeminfo (); response. write ("Operating System:" + systeminfo. getoperationsysteminname () + "<br>"); response. write ("CPU No.:" + systeminfo. getcpuid () + "<br>"); response. write ("Hard Disk number:" + systeminfo. getmainharddiskid () + "<br>"); response. write ("Windows directory location:" + systeminfo. getsysdirectory () + "<br>"); response. write ("system directory location:" + systeminfo. getwindirectory () + "<br> "); Memoryinfo = systeminfo. getmemoryinfo (); cpuinfo = systeminfo. getcpuinfo (); response. write ("dwactiveprocessormask" + cpuinfo. dwactiveprocessormask + "<br>"); response. write ("dwallocationgranularity" + cpuinfo. dwallocationgranularity + "<br>"); response. write ("CPU count:" + cpuinfo. dwnumberofprocessors + "<br>"); response. write ("oem id:" + cpuinfo. dwoemid + "<br>"); response. write ("Page size" + cpuinfo. dwpagesize + "<br>"); response. write ("CPU level" + cpuinfo. dwprocessorlevel + "<br>"); response. write ("dwprocessorrevision" + cpuinfo. dwprocessorrevision + "<br>"); response. write ("CPU type" + cpuinfo. dwprocessortype + "<br>"); response. write ("lpmaximumapplicationaddress" + cpuinfo. lpmaximumapplicationaddress + "<br>"); response. write ("lpminimumapplicationaddress" + cpuinfo. lpminimumappl Icationaddress + "<br>"); response. write ("CPU type:" + cpuinfo. dwprocessortype + "<br>"); response. write ("available swap file size:" + memoryinfo. dwavailpagefile + "<br>"); response. write ("available physical memory size:" + memoryinfo. dwavailphys + "<br>"); response. write ("available virtual memory size" + memoryinfo. dwavailvirtual + "<br>"); response. write ("OS bits:" + memoryinfo. dwlength + "<br>"); response. write ("memory used:" + memoryinfo. dwmemoryload + "<br> "); Response. write ("Total swap file size:" + memoryinfo. dwtotalpagefile + "<br>"); response. write ("total physical memory size:" + memoryinfo. dwtotalphys + "<br>"); response. write ("Total virtual memory size:" + memoryinfo. dwtotalvirtual + "<br>") ;}}note: the front-end ASPX page does not have any controls. ------------------------------------------ Complete content see: http://blog.csdn.net/zhoufoxcn/archive/2007/03/20/1534949.aspx