How to use Windows Management Instrumentation (WMI) with PB
Posted: Fri Apr 15, 2005 4:41 pm
Code updated for 5.20+
One first: I´m not the autor of the code, only the "manager" of many source-snipsets, and only a small part of it is made by me. Let me say a big "Thank You!" to all coders who will find their code here
BUT it´s the first working sample, using the basic calls of WMI.
It will work on MS-OS > Win9x. Win9x (and NT4) needs the WMI-Core installed first.
http://msdn.microsoft.com/library/defau ... st/wmi.asp
***********************************************************
* EDIT (25.04.2007) PB4 and unicode updated code, reworked by ts-soft *
***********************************************************
Have fun!
One first: I´m not the autor of the code, only the "manager" of many source-snipsets, and only a small part of it is made by me. Let me say a big "Thank You!" to all coders who will find their code here
BUT it´s the first working sample, using the basic calls of WMI.
It will work on MS-OS > Win9x. Win9x (and NT4) needs the WMI-Core installed first.
http://msdn.microsoft.com/library/defau ... st/wmi.asp
***********************************************************
* EDIT (25.04.2007) PB4 and unicode updated code, reworked by ts-soft *
***********************************************************
Code: Select all
;- WMI Intialisierung, Datenabruf und Deinitialisierung
; rewritten for PB4 and use as an "IncludeFile"
; save this code as "wmi.pbi"
; use it in your project with:
;
; includefile "wmi.pbi"
; WMI_INIT()
; WMI_Call("Select * FROM Win32_OperatingSystem", "Caption, CSDVersion, SerialNumber, RegisteredUser, Organization")
; ResetList(wmidata())
; While NextElement(wmidata())
; Debug wmidata() ; Alle Listenelemente darstellen / show all elements
; Wend
; WMI_RELEASE("OK")
;
;----------------------------------------------------------------------------------------------------------------
; Update für PB4 Final by ts-soft
; unnötige Konstanten und Structuren entfernt (sind in PB enthalten)
; voller Unicode support
; ---------------------------------------------------------------------------------------------------------------
;- KONSTANTEN PROZEDUREN STRUKTUREN
#COINIT_MULTITHREAD = 0
#RPC_C_AUTHN_LEVEL_CONNECT = 2
#RPC_C_IMP_LEVEL_IDENTIFY = 2
#EOAC_NONE = 0
#RPC_C_AUTHN_WINNT = 10
#RPC_C_AUTHZ_NONE = 0
#RPC_C_AUTHN_LEVEL_CALL = 3
#RPC_C_IMP_LEVEL_IMPERSONATE = 3
#CLSCTX_INPROC_SERVER = 1
#wbemFlagReturnImmediately = 16
#wbemFlagForwardOnly = 32
#IFlags = #wbemFlagReturnImmediately + #wbemFlagForwardOnly
#WBEM_INFINITE = $FFFFFFFF
#WMISeparator = ","
Procedure StringToBStr(string$)
Protected Unicode$ = Space(StringByteLength(string$, #PB_Unicode) + 1)
Protected bstr_string
PokeS(@Unicode$, String$, -1, #PB_Unicode)
bstr_string = SysAllocString_(@Unicode$)
ProcedureReturn bstr_string
EndProcedure
Procedure.s UniToPB(*Unicode)
ProcedureReturn PeekS(*Unicode, #PB_Any, #PB_Unicode)
EndProcedure
Global txt$, loc.IWbemLocator, svc.IWbemServices, pEnumerator.IEnumWbemClassObject, pclsObj.IWbemClassObject, x.Variant, error
Global NewList wmidata.s()
ProcedureDLL.s wmi_release(dumdum$)
;- WMI Release
svc\release()
loc\release()
pEnumerator\release()
If error=0
pclsObj\release()
EndIf
CoUninitialize_()
If FindString(dumdum$, "ERROR", 1)
MessageRequester("", dumdum$)
End
EndIf
EndProcedure
ProcedureDLL.s wmi_init()
;- WMI Initialize
txt$=""
CoInitializeEx_(0,#COINIT_MULTITHREAD)
hres=CoInitializeSecurity_(0, -1,0,0,#RPC_C_AUTHN_LEVEL_CONNECT,#RPC_C_IMP_LEVEL_IDENTIFY,0,#EOAC_NONE,0)
If hres <> 0: txt$="ERROR: unable To call CoInitializeSecurity": wmi_release(txt$): EndIf
hres=CoCreateInstance_(?CLSID_WbemLocator,0,#CLSCTX_INPROC_SERVER,?IID_IWbemLocator,@loc.IWbemLocator)
If hres <> 0: txt$="ERROR: unable To call CoCreateInstance": wmi_release(txt$): EndIf
hres=loc\ConnectServer(StringToBStr("root\cimv2"),0,0,0,0,0,0,@svc.IWbemServices)
If hres <> 0: txt$="ERROR: unable To call IWbemLocator::ConnectServer": wmi_release(txt$): EndIf
hres=svc\queryinterface(?IID_IUnknown,@pUnk.IUnknown)
hres=CoSetProxyBlanket_(svc,#RPC_C_AUTHN_WINNT,#RPC_C_AUTHZ_NONE,0,#RPC_C_AUTHN_LEVEL_CALL,#RPC_C_IMP_LEVEL_IMPERSONATE,0,#EOAC_NONE)
If hres <> 0: txt$="ERROR: unable To call CoSetProxyBlanket": wmi_release(txt$): EndIf
hres=CoSetProxyBlanket_(pUnk,#RPC_C_AUTHN_WINNT,#RPC_C_AUTHZ_NONE,0,#RPC_C_AUTHN_LEVEL_CALL,#RPC_C_IMP_LEVEL_IMPERSONATE,0,#EOAC_NONE)
If hres <> 0: txt$="ERROR: unable To call CoSetProxyBlanket": wmi_release(txt$): EndIf
pUnk\release()
ProcedureReturn txt$
EndProcedure
ProcedureDLL.s WMI_Call(WMISelect.s, WMICommand.s)
;- Call Data
;OnErrorResume()
error=0
WMICommand=WMISelect+","+WMICommand
ClearList(wmidata())
k=CountString(WMICommand,#WMISeparator)
Dim wmitxt$(k)
For i=0 To k
wmitxt$(i) = Trim(StringField(WMICommand,i+1,#WMISeparator))
Next
hres=svc\ExecQuery(StringToBStr("WQL"),StringToBStr(wmitxt$(0)), #IFlags,0,@pEnumerator.IEnumWbemClassObject)
If hres <> 0: txt$="ERROR: unable To call IWbemServices::ExecQuery": wmi_release(txt$): EndIf
hres=pEnumerator\reset()
Repeat
hres=pEnumerator\Next(#WBEM_INFINITE, 1, @pclsObj.IWbemClassObject, @uReturn)
For i=1 To k
Sleep_(0)
If uReturn <> 0
hres=pclsObj\get(StringToBStr(wmitxt$(i)), 0, @x.Variant, 0, 0)
type=x\vt
Select type
Case 8200
val.s=""
nDim=SafeArrayGetDim_(x\lVal)
SafeArrayGetUBound_(x\lVal, nDim, @plUbound)
For z=0 To plUbound
SafeArrayGetElement_(x\lVal, @z, @rgVar)
val.s=val.s+", "+UniToPB(rgVar)
Next
val.s=Mid(val.s, 3, Len(val.s))
Case 8195
val.s=""
nDim=SafeArrayGetDim_(x\scode)
SafeArrayGetUBound_(x\scode, nDim, @plUbound)
For z=0 To plUbound
SafeArrayGetElement_(x\scode, @z, @rgVar)
val.s=val.s + ", " + Str(rgVar)
Next
val.s=Mid(val.s, 3, Len(val.s))
Case 11
If x\boolVal=0
val.s="FALSE"
ElseIf x\boolVal=-1
val.s="TRUE"
EndIf
Case 8
val.s=UniToPB(x\bstrVal)
Case 3
val.s=Str(x\lVal)
Case 1
val.s="n/a"
Default
val.s=""
EndSelect
If FindString(wmitxt$(i), "Date", 1) Or FindString(wmitxt$(i), "Time", 1)
AddElement(wmidata())
wmidata()=Mid(val, 7, 2)+"."+Mid(val, 5, 2)+"."+Mid(val, 1, 4)+" "+Mid(val, 9, 2)+":"+Mid(val, 11,2)+":"+Mid(val, 13,2) ;+Chr(10)+Chr(13)
Else
AddElement(wmidata())
wmidata()=Trim(val) ;+Chr(10)+Chr(13)
EndIf
EndIf
Next
Until uReturn = 0
If ListSize(wmidata())=0
For i=1 To k
AddElement(wmidata())
wmidata()="n/a"
Next
error=1
EndIf
ProcedureReturn wmidata()
EndProcedure
;- Data Section
DataSection
CLSID_IEnumWbemClassObject:
;1B1CAD8C-2DAB-11D2-B604-00104B703EFD
Data.i $1B1CAD8C
Data.w $2DAB, $11D2
Data.b $B6, $04, $00, $10, $4B, $70, $3E, $FD
IID_IEnumWbemClassObject:
;7C857801-7381-11CF-884D-00AA004B2E24
Data.i $7C857801
Data.w $7381, $11CF
Data.b $88, $4D, $00, $AA, $00, $4B, $2E, $24
CLSID_WbemLocator:
;4590f811-1d3a-11d0-891f-00aa004b2e24
Data.i $4590F811
Data.w $1D3A, $11D0
Data.b $89, $1F, $00, $AA, $00, $4B, $2E, $24
IID_IWbemLocator:
;dc12a687-737f-11cf-884d-00aa004b2e24
Data.i $DC12A687
Data.w $737F, $11CF
Data.b $88, $4D, $00, $AA, $00, $4B, $2E, $24
IID_IUnknown:
;00000000-0000-0000-C000-000000000046
Data.i $00000000
Data.w $0000, $0000
Data.b $C0, $00, $00, $00, $00, $00, $00, $46
EndDataSection