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Programming >> Communication and Input/Output >> cpuspeed program expansion....
http://bb4w.conforums.com/index.cgi?board=communication&action=display&num=1437068722

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cpuspeed program expansion....
Post by Yshua on Jul 16^th, 2015, 5:45pm

Dear BBC BASIC forum people:

Have a program running successfully, an expansion of cpuspeed.com, as follows:

REM Get CPU clock speed using Windows Management Instrumentation (WMI)
REM Adapted from http://www.codeproject.com/KB/system/UsingWMI.aspx
REM Richard Russell, http://www.rtrussell.co.uk/, 18-Sep-2010

REM Load OLE32 library:
SYS "LoadLibrary", "OLE32.DLL" TO ole32%
SYS "GetProcAddress", ole32%, "CoInitializeEx" TO `CoInitializeEx`
SYS "GetProcAddress", ole32%, "CoUninitialize" TO `CoUninitialize`
SYS "GetProcAddress", ole32%, "CoCreateInstance" TO `CoCreateInstance`
SYS "GetProcAddress", ole32%, "CoSetProxyBlanket" TO `CoSetProxyBlanket`
SYS "GetProcAddress", ole32%, "CLSIDFromString" TO `CLSIDFromString`

REM Define constants:
RPC_C_AUTHN_LEVEL_CALL = 3
RPC_C_AUTHN_WINNT = 10
RPC_C_AUTHZ_NONE = 0
RPC_C_IMP_LEVEL_IMPERSONATE = 3
WBEM_FLAG_FORWARD_ONLY = &20

CLSID_WbemLocator% = FNguid("{4590f811-1d3a-11d0-891f-00aa004b2e24}")
IID_IWbemLocator% = FNguid("{dc12a687-737f-11cf-884d-00aa004b2e24}")
CLSCTX_INPROC_SERVER = 1

REM Define COM interfaces:
DIM IWbemLocator{QueryInterface%, AddRef%, Release%, ConnectServer%}

DIM IWbemServices{QueryInterface%, AddRef%, Release%, OpenNameSpace%, \
\ CancelAsyncCall%, QueryObjectSink%, GetObject%, GetObjectAsync%, \
\ PutClass%, PutClassAsync%, DeleteClass%, DeleteClassAsync%, \
\ CreateClassEnum%, CreateClassEnumAsync%, PutInstance%, PutInstanceAsync%, \
\ DeleteInstance%, DeleteInstanceAsync%, CreateInstanceEnum%, \
\ CreateInstanceEnumAsync%, ExecQuery%, ExecQueryAsync%, \
\ ExecNotificationQuery%, ExecNotificationQueryAsync%, ExecMethod%, \
\ ExecMethodAsync%}

DIM IEnumWbemClassObject{QueryInterface%, AddRef%, Release%, \
\ Reset%, Next%, NextAsync%, Clone%, Skip%}

DIM IWbemClassObject{QueryInterface%, AddRef%, Release%, \
\ GetQualifierSet%, Get%, Put%, Delete%, GetNames%, BeginEnumeration%, \
\ Next%, EndEnumeration%, GetPropertyQualifierSet%, Clone%, GetObjectText%, \
\ SpawnDerivedClass%, SpawnInstance%, CompareTo%, GetPropertyOrigin%, \
\ InheritsFrom%, GetMethod%, PutMethod%, DeleteMethod%, \
\ BeginMethodEnumeration%, NextMethod%, EndMethodEnumeration%, \
\ GetMethodQualifierSet%, GetMethodOrigin%}

REM Initialise COM:
SYS `CoInitializeEx`, 0, 0

ON ERROR PROCcleanup : SYS "MessageBox", @hwnd%, REPORT$, 0, 48 : QUIT
ON CLOSE PROCcleanup : QUIT

REM Get CPU speed using WMI:

SYS `CoCreateInstance`, CLSID_WbemLocator%, 0, CLSCTX_INPROC_SERVER, \
\ IID_IWbemLocator%, ^pLoc% TO hr%
IF hr% THEN ERROR 100, "Could not create IWbemLocator interface"
!(^IWbemLocator{}+4) = !pLoc%

SYS IWbemLocator.ConnectServer%, pLoc%, FNwide("root\cimv2"), \
\ 0, 0, 0, 0, 0, 0, ^pSvc% TO hr%
IF hr% THEN ERROR 100, "Could not create IWbemServices interface"
!(^IWbemServices{}+4) = !pSvc%

SYS `CoSetProxyBlanket`, pSvc%, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE, 0, \
\ RPC_C_AUTHN_LEVEL_CALL, RPC_C_IMP_LEVEL_IMPERSONATE, 0, 0 TO hr%
IF hr% THEN ERROR 100, "Could not set proxy blanket"

query$ = FNwide("SELECT * FROM Win32_Processor")
lang$ = FNwide("WQL")
SYS IWbemServices.ExecQuery%, pSvc%, lang$, query$, \
\ WBEM_FLAG_FORWARD_ONLY, 0, ^pEnum% TO hr%
IF hr% THEN ERROR 100, "Could not query Win32_Processor enumerator"
!(^IEnumWbemClassObject{}+4) = !pEnum%

SYS IEnumWbemClassObject.Next%, pEnum%, -1, 1, ^pCPU%, ^nret% TO hr%
IF hr% THEN ERROR 100, "Could not enumerate Win32_Processor object"
!(^IWbemClassObject{}+4) = !pCPU%

DIM var{vartype{l&,h&},reserved&(5),ldata%,hdata%}
SYS IWbemClassObject.Get%, pCPU%, FNwide("CurrentClockSpeed"), 0, \
\ var{}, 0, 0 TO hr%
IF hr% THEN ERROR 100, "Could not get processor clock speed"

PRINT "CPU #0 clock speed = " ; var.ldata% AND &FFFF ; " MHz"

DIM var{vartype{l&,h&},reserved&(5),ldata%,hdata%}
SYS IWbemClassObject.Get%, pCPU%, FNwide("DataWidth"), 0, \
\ var{}, 0, 0 TO hr%
IF hr% THEN ERROR 100, "Could not get data width"

PRINT "data width = " ; var.ldata% AND &FFFF

DIM var{vartype{l&,h&},reserved&(5),ldata%,hdata%}
SYS IWbemClassObject.Get%, pCPU%, FNwide("Description"), 0, \
\ var{}, 0, 0 TO hr%
IF hr% THEN ERROR 100, "Could not get processor description"

DIM cpu{desc&(256)}
SYS "WideCharToMultiByte", 0, 0, var.ldata%, -1, cpu{}, 256, 0, 0
PRINT "CPU #0 description = """ cpu.desc&() """"

DIM var{vartype{l&,h&},reserved&(5),ldata%,hdata%}
SYS IWbemClassObject.Get%, pCPU%, FNwide("Manufacturer"), 0, \
\ var{}, 0, 0 TO hr%
IF hr% THEN ERROR 100, "Could not get Manufacturer"

DIM cpu{desc&(256)}
SYS "WideCharToMultiByte", 0, 0, var.ldata%, -1, cpu{}, 256, 0, 0
PRINT "CPU #0 description = """ cpu.desc&() """"

DIM var{vartype{l&,h&},reserved&(5),ldata%,hdata%}
SYS IWbemClassObject.Get%, pCPU%, FNwide("Revision"), 0, \
\ var{}, 0, 0 TO hr%
IF hr% THEN ERROR 100, "Could not get revision"

PRINT "Revision number = " ; var.ldata% AND &FFFF ; "."


PROCcleanup

END

DEF PROCcleanup
pCPU% += 0 : IF pCPU% SYS !(!pCPU%+8), pCPU% : pCPU% = 0
pEnum% += 0 : IF pEnum% SYS !(!pEnum%+8), pEnum% : pEnum% = 0
pSvc% += 0 : IF pSvc% SYS !(!pSvc%+8), pSvc% : pSvc% = 0
pLoc% += 0 : IF pLoc% SYS !(!pLoc%+8), pLoc% : pLoc% = 0
SYS `CoUninitialize`
ENDPROC

DEF FNwide(A$)
LOCAL M$
M$ = STRING$(2*LENA$+2,CHR$0)
SYS "MultiByteToWideChar", 0, 0, A$, -1, M$, LENA$+1
= M$

DEF FNguid(A$)
LOCAL C%, M%
DIM C% 15, M% LOCAL 2*LENA$+1
SYS "MultiByteToWideChar", 0, 0, A$, -1, M%, LENA$+1
SYS `CLSIDFromString`, M%, C%
= C%


Now when even just one more WMI attribute is added, such as,


DIM cpu{desc&(256)}
SYS "WideCharToMultiByte", 0, 0, var.ldata%, -1, cpu{}, 256, 0, 0
PRINT "CPU #0 description = """ cpu.desc&() """"

DIM var{vartype{l&,h&},reserved&(5),ldata%,hdata%}
SYS IWbemClassObject.Get%, pCPU%, FNwide("InstallDate"), 0, \
\ var{}, 0, 0 TO hr%
IF hr% THEN ERROR 100, "Could not get install date"

after the CPU Description attribute, this attribute simply repeats the CPU Description. Also is there a limit to how many attributes can be printed out in the program?

Thanks sooo much,
Yshua

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Re: cpuspeed program expansion....
Post by rtr2 on Jul 16^th, 2015, 9:14pm

on Jul 16^th, 2015, 5:45pm, Yshua wrote:

Now when even just one more WMI attribute is added, such as... "InstallDate"... this attribute simply repeats the CPU Description.

It doesn't "repeat" the CPU Description, that string is simply left over from the previous operation. If you had checked the returned VARTYPE you would have seen that it is VT_NULL, which I suspect simply means that the InstallDate property is not available for the processor.

Quote:

Also is there a limit to how many attributes can be printed out in the program?

No.

Richard.

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