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| unit routines;
interface
uses
System.SysUtils,
System.Variants,
System.Win.ComObj,
Winapi.ActiveX,
Vcl.ComCtrls;
type
TAnalyse = (AMOVIBLE, CDROM, AMOVIBLE_CDROM, TOUT);
TDevice = class
private
FID: String;
FPNPId: String;
procedure SetID(const Value: String);
procedure SetPNPId(const Value: String);
public
property ID: String read FID write SetID;
property PNPId: String read FPNPId write SetPNPId;
constructor Create(newid: String); overload;
constructor Create(newid, newpnpid: String); overload;
end;
procedure FillListe(const Liste: TTreeView;
const analyse: TAnalyse = TAnalyse.TOUT);
const
WbemUser = '';
WbemPassword = '';
WbemComputer = 'localhost';
wbemFlagForwardOnly = $00000020;
Giga = 1024;
Mo = 1024;
Ko = 1024;
implementation
resourcestring
StrFree = ' espace libre sur ';
function sizetostring(size: UInt64): String;
begin
if size = 0 then
exit(emptystr);
if size < $000000000400 then
exit(format('%d bytes', [size]));
if size < $000000100000 then
exit(format('%.1f Kb', [size / $000000000400]));
if size < $000040000000 then
exit(format('%.1f Mb', [size / $000000100000]));
if size < $010000000000 then
exit(format('%.2f Gb', [size / $000040000000]));
exit(format('%.2f Tb', [size / $010000000000]));
end;
procedure getletters(const Liste: TTreeView; const ParentNode: TTreeNode;
const ID: String);
var
FSWbemLocator: OLEVariant;
FWMIService: OLEVariant;
fWbemPartitions, fwbemDisk: OLEVariant;
PEnum, DEnum: IEnumvariant;
PValue, DValue: LongWord;
wsql: String;
s: String;
szfree,sz : Uint64;
begin
FSWbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
FWMIService := FSWbemLocator.ConnectServer(WbemComputer, 'root\CIMV2',
WbemUser, WbemPassword);
wsql := 'ASSOCIATORS OF {Win32_DiskDrive.DeviceID=' + QuotedStr(ID) +
'} WHERE AssocClass = Win32_DiskDriveToDiskPartition';
fWbemPartitions := FWMIService.ExecQuery(wsql, 'WQL', wbemFlagForwardOnly);
PEnum := IUnknown(fWbemPartitions._NewEnum) as IEnumvariant;
while PEnum.Next(1, fWbemPartitions, PValue) = 0 do
begin
wsql := 'ASSOCIATORS OF {Win32_DiskPartition.DeviceID=' +
QuotedStr(String(fWbemPartitions.DeviceID)) +
'} WHERE AssocClass = Win32_LogicalDiskToPartition';
fwbemDisk := FWMIService.ExecQuery(wsql, 'WQL', wbemFlagForwardOnly);
DEnum := IUnknown(fwbemDisk._NewEnum) as IEnumvariant;
while DEnum.Next(1, fwbemDisk, PValue) = 0 do
begin
sz:=VariantToUInt64WithDefault(FWbemDisk.size, 0);
szFree:=VariantToUInt64WithDefault(FWbemDisk.FreeSpace, 0);
s := format('%s %s', [string(fwbemDisk.DeviceID),
string(fwbemDisk.VolumeName)]);
// s:=S+StringOfChar(#255,60-Length(s));
s := format('%s (%s%s%s)',[s,
sizetostring(szFree),
StrFree,
sizetostring(sz)]);
Liste.Items.AddChild(ParentNode, s);
end;
fwbemDisk := Unassigned;
end;
fWbemPartitions := Unassigned;
end;
procedure FillListe(const Liste: TTreeView;
const analyse: TAnalyse = TAnalyse.TOUT);
var
FSWbemLocator: OLEVariant;
FWMIService: OLEVariant;
FWbemObjectSet: OLEVariant;
FWbemObject: OLEVariant;
oEnum: IEnumvariant;
iValue: LongWord;
wsql: String;
s: String;
sz: UInt64;
aListItem: TTreeNode;
aDevice: TDevice;
begin;
Liste.Items.BeginUpdate;
try
Liste.Items.Clear;
FSWbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
FWMIService := FSWbemLocator.ConnectServer(WbemComputer, 'root\CIMV2',
WbemUser, WbemPassword);
wsql := 'Select Caption,Interfacetype,DeviceID,PNPDeviceID,MediaType,Size from Win32_DiskDrive';
if (analyse = TAnalyse.AMOVIBLE) OR (analyse = TAnalyse.AMOVIBLE_CDROM)
then
wsql := wsql + ' WHERE InterfaceType Like ''USB%''';
FWbemObjectSet := FWMIService.ExecQuery(wsql, 'WQL', wbemFlagForwardOnly);
oEnum := IUnknown(FWbemObjectSet._NewEnum) as IEnumvariant;
if analyse <> TAnalyse.CDROM then
begin
while oEnum.Next(1, FWbemObject, iValue) = 0 do
begin
sz := VariantToUInt64WithDefault(FWbemObject.size, 0);
s := format('%s %s', [String(FWbemObject.Caption),
sizetostring(sz)]);
if VarIsNull(FWbemObject.PNPDeviceID) then
aDevice := TDevice.Create(String(FWbemObject.DeviceID))
else
aDevice := TDevice.Create(String(FWbemObject.DeviceID),
String(FWbemObject.PNPDeviceID));
aListItem := Liste.Items.AddObject(nil, s, aDevice);
aListItem.Imageindex := 0;
if sametext(String(FWbemObject.Interfacetype), 'usb') then
begin
aListItem.Imageindex := 2;
if String(FWbemObject.Mediatype).Contains('hard') then
aListItem.Imageindex := 1;
end;
getletters(Liste, aListItem, String(FWbemObject.DeviceID));
aListItem.Expanded := true;
end;
FWbemObject := Unassigned;
end;
if analyse <> TAnalyse.AMOVIBLE then
begin
FWbemObjectSet := FWMIService.ExecQuery
('Select Caption,Drive,DeviceID,PNPDeviceID,VolumeName,Size from Win32_CDROMDrive',
'WQL', wbemFlagForwardOnly);
oEnum := IUnknown(FWbemObjectSet._NewEnum) as IEnumvariant;
while oEnum.Next(1, FWbemObject, iValue) = 0 do
begin
if VarisNull(FWbemObject.size)
then sz:=0
else sz := VariantToUInt64WithDefault(FWbemObject.size, 0);
s := format('%s %s', [String(FWbemObject.Caption),
sizetostring(sz)]);
aDevice := TDevice.Create(String(FWbemObject.DeviceID),
String(FWbemObject.PNPDeviceID));
aListItem := Liste.Items.AddObject(nil, s, aDevice);
aListItem.Imageindex := 3;
if VarisNull(FWbemObject.size)
then s:=String(FWbemObject.Drive)
else s := format('%s %s', [String(FWbemObject.Drive),
String(FWbemObject.VolumeName)]);
Liste.Items.AddChild(aListItem, s);
aListItem.Expanded := true;
end;
FWbemObject := Unassigned;
end;
finally
Liste.Items.EndUpdate;
end;
end;
{ TDevice }
constructor TDevice.Create(newid, newpnpid: String);
begin
FID := newid;
FPNPId := newpnpid;
end;
constructor TDevice.Create(newid: String);
begin
FID := newid;
FPNPId := emptystr;
end;
procedure TDevice.SetID(const Value: String);
begin
FID := Value;
end;
procedure TDevice.SetPNPId(const Value: String);
begin
FPNPId := Value;
end;
end. |
