代码语言：javascript复制
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs,SiMath,SimEncrypt, StdCtrls,ActiveX,ComObj,JwaWbemCli;
type
TForm1 = class(TForm)
Button1: TButton;
Memo: TMemo;
Button2: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure MemoKeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState);
private
{ Private declarations }
procedure ShowProp(SProp: OleVariant);
public
{ Public declarations }
end;
const
RPC_C_AUTHN_LEVEL_DEFAULT = 0;
RPC_C_IMP_LEVEL_IMPERSONATE = 3;
RPC_C_AUTHN_WINNT = 10;
RPC_C_AUTHZ_NONE = 0;
RPC_C_AUTHN_LEVEL_CALL = 3;
EOAC_NONE = 0;
var
Form1: TForm1;
implementation
function GetWMIProperty(WMIType, WMIProperty: string): string;
var
Wmi, Objs, Obj: OleVariant;
Enum: IEnumVariant;
C: Cardinal;
s:string;
begin
Wmi:= CreateOleObject('WbemScripting.SWbemLocator');
Objs := Wmi.ConnectServer('.','rootcimv2').ExecQuery('Select * from Win32_' WMIType);
Enum:=IEnumVariant(IUnknown(Objs._NewEnum));
Enum.Reset;
while (Enum.Next(1,Obj,C)=s_ok) do
begin //需要更多的信息请使用循环
Obj:=Obj.Properties_.Item(WMIProperty,0).Value;
if VarIsArray(Obj) then
s:=Obj[0]
else
s:=Obj;
result:=result ',' s;
end;
end;
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
const
strLocale = '';
strUser = '';
strPassword = '';
strNetworkResource = 'rootcimv2';
strAuthority = '';
WQL = 'SELECT * FROM Win32_Volume'; // SELECT * FROM MSNdis_80211_ReceivedSignalStrength Where active=true
var
FWbemLocator : IWbemLocator;
FWbemServices : IWbemServices;
FUnsecuredApartment : IUnsecuredApartment;
ppEnum : IEnumWbemClassObject;
apObjects : IWbemClassObject;
puReturned : ULONG;
pVal : OleVariant;
pType : Integer;
plFlavor : Integer;
Succeed : HRESULT;
begin
// Set general COM security levels
if Failed(CoInitializeSecurity(nil, -1, nil, nil, RPC_C_AUTHN_LEVEL_DEFAULT, RPC_C_IMP_LEVEL_IMPERSONATE, nil, EOAC_NONE, nil)) then
Exit;
// Obtain the initial locator to WMI
if Succeeded(CoCreateInstance(CLSID_WbemLocator, nil, CLSCTX_INPROC_SERVER, IID_IWbemLocator, FWbemLocator)) then
try // Connect to WMI through the IWbemLocator::ConnectServer method
if Succeeded(FWbemLocator.ConnectServer(strNetworkResource, strUser, strPassword, strLocale, WBEM_FLAG_CONNECT_USE_MAX_WAIT, strAuthority, nil, FWbemServices)) then
try // Set security levels on the proxy
if Failed(CoSetProxyBlanket(FWbemServices, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE, nil, RPC_C_AUTHN_LEVEL_CALL, RPC_C_IMP_LEVEL_IMPERSONATE, nil, EOAC_NONE)) then
Exit;
if Succeeded(CoCreateInstance(CLSID_UnsecuredApartment, nil, CLSCTX_LOCAL_SERVER, IID_IUnsecuredApartment, FUnsecuredApartment)) then
try // Use the IWbemServices pointer to make requests of WMI
Succeed := FWbemServices.ExecQuery('WQL', WQL, WBEM_FLAG_FORWARD_ONLY, nil, ppEnum);
if Succeeded(Succeed) then
begin
memo.lines.add('Running WMI query...'); // Get the data from the query
while (ppEnum.Next(WBEM_INFINITE, 1, apObjects, puReturned)=0) do
begin
apObjects.Get('Caption', 0, pVal, pType, plFlavor);
memo.lines.add('"' AnsiToUTF8(pVal) '"');
VarClear(pVal);
end;
end else
memo.lines.add(Format('Error executing WQL sentence %x',[Succeed]));
finally
FUnsecuredApartment := nil;
end;
finally
FWbemServices := nil;
end;
finally
FWbemLocator := nil;
end;
end;
procedure TForm1.Button2Click(Sender: TObject);
const
WbemUser ='';
WbemPassword ='';
WbemComputer ='localhost';
wbemFlagForwardOnly = $00000020;
var
FSWbemLocator : OLEVariant;
FWMIService : OLEVariant;
FWbemObjectSet: OLEVariant;
classItems : OLEVariant;
classItem : oleVariant;
FWbemObject : Variant;
classEnum : IEnumvariant;
oEnum : IEnumvariant;
sValue : string;
c:Cardinal;
begin;
FSWbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
FWMIService := FSWbemLocator.ConnectServer(WbemComputer, 'rootCIMV2', WbemUser, WbemPassword);
classItems := FWMIService.SubclassesOf();
classEnum := IUnknown(classItems._NewEnum) As IEnumvariant;
while classEnum.Next(1, classItem, c) = 0 do
begin
sValue := classItem.Path_.Class;
memo.lines.add(Format('Class: %s', [sValue]));
classItem := Unassigned;
end;
{FWbemObjectSet:= FWMIService.ExecQuery('SELECT * FROM Win32_MemoryDevice','WQL',wbemFlagForwardOnly);
oEnum := IUnknown(FWbemObjectSet._NewEnum) as IEnumVariant;
while oEnum.Next(1, FWbemObject, nil) = 0 do
begin
sValue := FWbemObject.Properties_.Item('Caption').Value;
memo.lines.add(Format('Caption %s', [sValue]));
// String FWbemObject := Unassigned;
end;}
end;
procedure TForm1.ShowProp(SProp: OleVariant);
var
StrValue: string;
Count: Cardinal;
begin
StrValue := '';
if VarIsNull(SProp.Get_Value) then
StrValue := '<empty>'
else
case SProp.CIMType of
Cim_Uint8, Cim_Sint8, Cim_Uint16, Cim_Sint16, Cim_Uint32, Cim_Sint32, Cim_Sint64:
if VarIsArray(SProp.Get_Value) then
begin
if VarArrayHighBound(SProp.Get_Value, 1) > 0 then
for Count := 1 to VarArrayHighBound(SProp.Get_Value, 1) do
StrValue := StrValue ' ' IntToStr(SProp.Get_Value[Count]);
end else
StrValue := IntToStr(SProp.Get_Value);
Cim_Real32, Cim_Real64: StrValue := FloatToStr(SProp.Get_Value);
Cim_STRING: StrValue := SProp.Get_Value;
else memo.lines.add('Unknown type');
end;
memo.lines.Add(StrValue);
end;
procedure TForm1.MemoKeyDown(Sender: TObject; var Key: Word;
Shift: TShiftState);
begin
if (Key=ord('A')) and (ssctrl in Shift) then
begin
memo.SelectAll;
end;
end;
end.
