Вы можете использовать встроенное событие WMI __InstanceDeletionEvent
для мониторинга класса Win32_Process
и фильтра по свойству ProcessId
, это событие выполняется в асинхронном режиме код.
Проверьте этот пример кода (написан на Delphi XE2, но должен работать в Delphi 6 без проблем)
Примечание. Прежде чем использовать ее, необходимо импортировать библиотеку Microsoft WMI Scripting V1.2.
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, WbemScripting_TLB;
type
TWmiAsyncEvent = class
private
FWQL : string;
FSink : TSWbemSink;
FLocator : ISWbemLocator;
FServices : ISWbemServices;
procedure EventReceived(ASender: TObject; const objWbemObject: ISWbemObject; const objWbemAsyncContext: ISWbemNamedValueSet);
public
procedure Start;
constructor Create(Pid : DWORD);
Destructor Destroy;override;
end;
TFrmDemo = class(TForm)
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
private
AsyncEvent : TWmiAsyncEvent;
public
{ Public declarations }
end;
var
FrmDemo: TFrmDemo;
implementation
{$R *.dfm}
uses
ActiveX;
{ TWmiAsyncEvent }
constructor TWmiAsyncEvent.Create(Pid: DWORD);
begin
inherited Create;
CoInitializeEx(nil, COINIT_MULTITHREADED);
FLocator := CoSWbemLocator.Create;
FServices := FLocator.ConnectServer('.', 'root\CIMV2', '', '', '', '', wbemConnectFlagUseMaxWait, nil);
FSink := TSWbemSink.Create(nil);
FSink.OnObjectReady := EventReceived;
//construct the WQL sentence with the pid to monitor
FWQL:=Format('Select * From __InstanceDeletionEvent Within 1 Where TargetInstance ISA "Win32_Process" And TargetInstance.ProcessId=%d',[Pid]);
end;
destructor TWmiAsyncEvent.Destroy;
begin
if FSink<>nil then
FSink.Cancel;
FLocator :=nil;
FServices :=nil;
FSink :=nil;
CoUninitialize;
inherited;
end;
procedure TWmiAsyncEvent.EventReceived(ASender: TObject;
const objWbemObject: ISWbemObject;
const objWbemAsyncContext: ISWbemNamedValueSet);
var
PropVal: OLEVariant;
begin
PropVal := objWbemObject;
//do something when the event is received.
ShowMessage(Format('The Application %s Pid %d was finished',[String(PropVal.TargetInstance.Name), Integer(PropVal.TargetInstance.ProcessId)]));
end;
procedure TWmiAsyncEvent.Start;
begin
FServices.ExecNotificationQueryAsync(FSink.DefaultInterface,FWQL,'WQL', 0, nil, nil);
end;
procedure TFrmDemo.FormCreate(Sender: TObject);
begin
//here you must pass the pid of the process
AsyncEvent:=TWmiAsyncEvent.Create(1852);
AsyncEvent.Start;
end;
procedure TFrmDemo.FormDestroy(Sender: TObject);
begin
AsyncEvent.Free;
end;
end.
Для получения дополнительной информации вы можете проверить эту статью Delphi and WMI Events