Sometimes developers want to list down or identify the process running on a machine programmatically. How do enumerate the running processes and services quickly? Don’t know what to do? Don’t worry. MiTec’s System Information Management Suite’s component helps to do that effectively, and we will learn how to use the threads TSysProcMonThread and TSvcListMonThread to demonstrate the processes and services, respectively.
Platforms: Windows.
Installation Steps:
You can easily install this Component Suite from GetIt Package Manager. The steps are as follows.
- Navigate In RAD Studio IDE->Tools->GetIt Package Manager->select Components in Categories->Components->Trail -MiTec system Information Component Suite 14.3 and click Install Button.
- Read the license and Click Agree All. An Information dialog saying ‘Requires a restart of RAD studio at the end of the process. Do you want to proceed? Click yes and continue.
- It will download the plugin and install it. Once installed, Click Restart now.
How to run the Demo app:
- Navigate to the System Information Management Suite trails setup, Demos folder which is installed during Get It installation e.g) C:UsersDocumentsEmbarcaderoStudio21.0CatalogRepositoryMiTeC-14.3DemosDelphi6
- Open the PV project in RAD studio 10.4.1 compile and Run the application.
- This Demo App shows how to list down the running Process and Services in your machine, enumerate among them and access its properties.
Components used in MSIC PV Demo App:
- TSysProcMonThread: Monitors system and provides running processes, CPU, memory and disk monitoring and provides system information.
- TSvcListMonThread: Monitors installed services and drivers in real-time and provides their properties.
- 2 TTabsheet’s one for viewing Process list in TListView and other for viewing Services in TListView .
- TButton to view the details of the process or service accordingly in a new child form.
Implementation Details:
- An instance SPM of TSysProcMonThread and SLM of TSvcListMonThread were created. And in regular interval of each thread the Process list and service list is refreshed and updated to the screen using the OnInterval Event handlers
- On each interval, the Process List( using TProcessRecord ) and Service List (using TServiceRecord) is added to the list view by clearing the existing list.
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procedure Twnd_Main.RefreshProcList(Sender: TSysProcMonThread); var i: Integer; r: TProcessRecord; begin PrcList.Items.BeginUpdate; try PrcList.Items.Clear; for i:=0 to Sender.RecordCount-1 do begin Sender.GetRecord(i,r); with PrcList.Items.Add do begin Caption:=r.Name; if Is64 and (r.Platform<>64) then Caption:=Caption+'*32'; SubItems.Add(Format('%d',[r.PID])); SubItems.Add(FormatTicks(r.UserTime+r.KernelTime,False)); SubItems.Add(Format('%d KB',[r.VMCounters.WorkingSetSize div 1024])); SubItems.Add(Format('%s',[r.CommandLine])); end; end; if PrcList.Tag<>0 then PrcList.AlphaSort; finally PrcList.Items.EndUpdate; end; end; procedure Twnd_Main.RefreshSvcList(Sender: TSvcListMonThread); var i: Integer; r: TServiceRecord; begin SvcList.Items.BeginUpdate; try SvcList.Items.Clear; for i:=0 to Sender.RecordCount-1 do begin Sender.GetRecord(i,r); with SvcList.Items.Add do begin Caption:=r.DisplayName; if r.Typ=svcUnknown then SubItems.Add(Format('%s (%d)',[cSvcType[r.Typ],r._Typ])) else SubItems.Add(cSvcType[r.Typ]); SubItems.Add(cSvcStatus[r.Status]); SubItems.Add(cSvcStartup[r.StartUp]); SubItems.Add(r.ObjectName); SubItems.Add(r.Name); end; end; if SvcList.Tag<>0 then SvcList.AlphaSort; finally SvcList.Items.EndUpdate; end; end; |
- Upon Clicking Details for the selected process in the list a new child form is created and data is added to different tab sheets.
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procedure Tdlg_PrcDetails.RefreshData; var i,j,c: Integer; r,n: TTreeNode; VersionInfo: TVersionInfo; m: TModuleRecord; h: THandleRecord; t: TThreadRecord; w: TWindowRecord; begin eName.Text:=FRecord.Name; imgIcon.Picture.Icon.Handle:=GetFileIcon(FRecord.ImageName); GetFileVerInfo(FRecord.ImageName,VersionInfo); GenList.Items.Clear; with GenList.Items.Add do begin Caption:='Description'; SubItems.Add(VersionInfo.Description); ImageIndex:=-3; end; with GenList.Items.Add do begin Caption:='Version'; SubItems.Add(VersionInfo.FileVersion); end; with GenList.Items.Add do begin Caption:='Product Name'; SubItems.Add(VersionInfo.ProductName); end; with GenList.Items.Add do begin Caption:='Company Name'; SubItems.Add(VersionInfo.CompanyName); end; with GenList.Items.Add do begin Caption:=''; ImageIndex:=-2; end; with GenList.Items.Add do begin Caption:='PID'; SubItems.Add(Format('%d',[FRecord.PID])); ImageIndex:=-3; end; with GenList.Items.Add do begin Caption:='Parent PID'; SubItems.Add(Format('%d',[FRecord.ParentPID])) end; with GenList.Items.Add do begin Caption:='Image name'; SubItems.Add(FRecord.ImageName); end; with GenList.Items.Add do begin Caption:='Command line'; SubItems.Add(FRecord.CommandLine); end; with GenList.Items.Add do begin Caption:=''; ImageIndex:=-2; end; if Win32Platform=VER_PLATFORM_WIN32_NT then with GenList.Items.Add do begin Caption:='User Name'; SubItems.Add(FRecord.UserName); ImageIndex:=-3; end; with GenList.Items.Add do begin Caption:='Priority'; SubItems.Add(Format('%d',[FRecord.Priority])); ImageIndex:=-3; end; with GenList.Items.Add do begin Caption:='Thread Count'; SubItems.Add(Format('%d',[FRecord.ThreadCount])); end; with GenList.Items.Add do begin Caption:='Handle Count'; SubItems.Add(Format('%d',[FRecord.HandleCount])); end; c:=FML.Count; TabSheet2.Caption:=Format(' Modules (%d) ',[c]); ModList.Items.Clear; for i:=0 to c-1 do begin m:=PModuleRecord(FML[i])^; with ModList.Items.Add do begin Caption:=m.Name; SubItems.Add(Format('%d',[m.ImageSize])); SubItems.Add(Format('0x%x',[m.BaseAddress])); SubItems.Add(m.VersionInfo.Description); end; end; c:=FTL.Count; TabSheet5.Caption:=Format(' Threads (%d) ',[c]); ThdList.Items.Clear; for i:=0 to c-1 do begin t:=PThreadRecord(FTL[i])^; with ThdList.Items.Add do begin Caption:=Format('%d',[t.ID]); Subitems.Add(Format('0x%x',[t.StartAddress])); Subitems.Add(Format('%d',[t.BasePriority])); Subitems.Add(Format('%d',[t.Priority])); if TThreadState(t.State)<>StateWait then SubItems.Add(cThreadState[TThreadState(t.State)]) else SubItems.Add(Format('%s:%s',[cThreadState[TThreadState(t.State)],cKWaitReason[TKWaitReason(t.WaitReason)]])); Subitems.Add(Format('%d',[t.ContextSwitchCount])); SubItems.Add(FormatTicks(t.KernelTime)); SubItems.Add(FormatTicks(t.UserTime)); end; end; TabSheet3.Caption:=Format(' Child Procs (%d) ',[FCP.Count]); CPList.Items.Clear; for i:=0 to FCP.Count-1 do with CPList.Items.Add do begin Caption:=FCP.Names[i]; SubItems.Add(FCP.ValueFromIndex[i]); end; CntList.Items.Clear; with CntList.Items.Add do begin Caption:='CPU Times'; ImageIndex:=-3; end; with CntList.Items.Add do begin Caption:='Kernel Time'; SubItems.Add(FormatTicks(FRecord.KernelTime)); SubItems.Add('-'); end; with CntList.Items.Add do begin Caption:='User Time'; SubItems.Add(FormatTicks(FRecord.UserTime)); SubItems.Add('-'); end; with CntList.Items.Add do begin Caption:='Total Time'; SubItems.Add(FormatTicks(FRecord.UserTime+FRecord.KernelTime)); SubItems.Add('-'); end; with CntList.Items.Add do begin Caption:=''; ImageIndex:=-2; end; with CntList.Items.Add do begin Caption:='I/O Counters'; ImageIndex:=-3; end; with CntList.Items.Add do begin Caption:='Read Operation Count'; SubItems.Add(Format('%d',[FRecord.IOCounters.ReadOperationCount.QuadPart])); SubItems.Add('-'); end; with CntList.Items.Add do begin Caption:='Write Operation Count'; SubItems.Add(Format('%d',[FRecord.IOCounters.WriteOperationCount.QuadPart])); SubItems.Add('-'); end; with CntList.Items.Add do begin Caption:='Other Operation Count'; SubItems.Add(Format('%d',[FRecord.IOCounters.OtherOperationCount.QuadPart])); SubItems.Add('-'); end; with CntList.Items.Add do begin Caption:='Read Transfer Count'; SubItems.Add(Format('%d',[FRecord.IOCounters.ReadTransferCount.QuadPart])); SubItems.Add('-'); end; with CntList.Items.Add do begin Caption:='Write Transfer Count'; SubItems.Add(Format('%d',[FRecord.IOCounters.WriteTransferCount.QuadPart])); SubItems.Add('-'); end; with CntList.Items.Add do begin Caption:='Other Transfer Count'; SubItems.Add(Format('%d',[FRecord.IOCounters.OtherTransferCount.QuadPart])); SubItems.Add('-'); end; with CntList.Items.Add do begin Caption:=''; ImageIndex:=-2; end; with CntList.Items.Add do begin Caption:='Virtual Memory Counters'; ImageIndex:=-3; end; with CntList.Items.Add do begin Caption:='Page Fault Count'; SubItems.Add(Format('%d',[FRecord.VMCounters.PageFaultCount])); SubItems.Add('-'); end; with CntList.Items.Add do begin Caption:='Virtual Size'; SubItems.Add(Format('%d B',[FRecord.VMCounters.VirtualSize])); SubItems.Add(Format('%d B',[FRecord.VMCounters.PeakVirtualSize])); end; with CntList.Items.Add do begin Caption:='Working Set Size'; SubItems.Add(Format('%d B',[FRecord.VMCounters.WorkingSetSize])); SubItems.Add(Format('%d B',[FRecord.VMCounters.PeakWorkingSetSize])); end; with CntList.Items.Add do begin Caption:='Quota Peak Paged Pool Usage'; SubItems.Add(Format('%d B',[FRecord.VMCounters.QuotaPagedPoolUsage])); SubItems.Add(Format('%d B',[FRecord.VMCounters.QuotaPeakPagedPoolUsage])); end; with CntList.Items.Add do begin Caption:='Quota Peak Non Paged Pool Usage'; SubItems.Add(Format('%d B',[FRecord.VMCounters.QuotaNonPagedPoolUsage])); SubItems.Add(Format('%d B',[FRecord.VMCounters.QuotaPeakNonPagedPoolUsage])); end; with CntList.Items.Add do begin Caption:='Pagefile Usage'; SubItems.Add(Format('%d B',[FRecord.VMCounters.PagefileUsage])); SubItems.Add(Format('%d B',[FRecord.VMCounters.PeakPagefileUsage])); end; SecList.Items.Clear; with SecList.Items.Add do begin Caption:='Groups'; ImageIndex:=-3; end; for i:=0 to High(FRecord.Groups) do with SecList.Items.Add do begin if FRecord.Groups[i].Name='' then Caption:=FRecord.Groups[i].SID else if FRecord.Groups[i].Domain<>'' then Caption:=Format('%s%s',[FRecord.Groups[i].Domain,FRecord.Groups[i].Name]) else Caption:=FRecord.Groups[i].Name; SubItems.Add(Format('0x%x',[FRecord.Groups[i].Flags])); end; with SecList.Items.Add do begin Caption:=''; ImageIndex:=-2; end; with SecList.Items.Add do begin Caption:='Privileges'; ImageIndex:=-3; end; for i:=0 to High(FRecord.Privileges) do with SecList.Items.Add do begin Caption:=FRecord.Privileges[i].Name; SubItems.Add(IntToStr(Integer(FRecord.Privileges[i].Flags and SE_PRIVILEGE_ENABLED=SE_PRIVILEGE_ENABLED))); ImageIndex:=-4; end; c:=FHL.Count; TabSheet6.Caption:=Format(' Handles (%d) ',[c]); HList.Items.Clear; for i:=0 to c-1 do begin h:=PHandleRecord(FHL[i])^; with HList.Items.Add do begin Caption:=Format('0x%x',[h.Handle]); SubItems.Add(h.TypeName); SubItems.Add(Format('0x%x',[h.Access])); SubItems.Add(h.Name); end; end; r:=nil; c:=FWL.Count; TabSheet7.Caption:=Format(' Windows (%d) ',[c]); WinTree.Items.Clear; for i:=0 to c-1 do begin w:=PWindowRecord(FWL[i])^; for j:=0 to WinTree.Items.Count-1 do if PHandle(WinTree.Items[j].Data)^=w.ParentWin then begin r:=WinTree.Items[j]; Break; end; n:=WinTree.Items.AddChild(r,Format('(0x%x) "%s": %s',[w.Handle,w.Text,w.ClassName])); n.ImageIndex:=Integer(w.Visible); n.Data:=Allocmem(SizeOf(THandle)); n.SelectedIndex:=n.ImageIndex; PHandle(n.Data)^:=w.Handle; end; if WinTree.Items.Count>0 then begin WinTree.FullExpand; WinTree.Items[0].MakeVisible; end; EnvBox.Items.Text:=FRecord.Environment; tsEnv.Caption:=Format('Environment (%d)',[EnvBox.Items.Count]); end; |
Upon Clicking Details for the selected Service in the list a new child form is created and data is added to different tab sheets.
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procedure Tdlg_SvcDetails.RefreshData; var i: Integer; n: TTreeNode; r: TServiceRecord; begin eName.Text:=FRecord.DisplayName; GenList.Items.Clear; imgIcon.Picture.Icon.Handle:=GetFileIcon(FRecord.ImageName); GenList.Items.Clear; with GenList.Items.Add do begin Caption:='Description'; SubItems.Add(FRecord.VersionInfo.Description); ImageIndex:=-3; end; with GenList.Items.Add do begin Caption:='Version'; SubItems.Add(FRecord.VersionInfo.FileVersion); end; with GenList.Items.Add do begin Caption:='Product Name'; SubItems.Add(FRecord.VersionInfo.ProductName); end; with GenList.Items.Add do begin Caption:='Company Name'; SubItems.Add(FRecord.VersionInfo.CompanyName); end; with GenList.Items.Add do begin Caption:=''; ImageIndex:=-2; end; with GenList.Items.Add do begin Caption:='Service Name'; SubItems.Add(FRecord.Name); ImageIndex:=-3; end; with GenList.Items.Add do begin Caption:='Command line'; SubItems.Add(FRecord.CmdLine); end; with GenList.Items.Add do begin Caption:='Log On As '; SubItems.Add(FRecord.ObjectName); end; with GenList.Items.Add do begin Caption:='Load Order Group'; SubItems.Add(FRecord.Group); end; with GenList.Items.Add do begin Caption:='Type'; SubItems.Add(cSvcType[FRecord.Typ]); end; with GenList.Items.Add do begin Caption:=''; ImageIndex:=-2; end; with GenList.Items.Add do begin Caption:='Status'; SubItems.Add(cSvcStatus[FRecord.Status]); ImageIndex:=-3; end; with GenList.Items.Add do begin Caption:='Startup Mode'; SubItems.Add(cSvcStartup[FRecord.Startup]); end; with GenList.Items.Add do begin Caption:='Error Control'; SubItems.Add(cSvcErrorControl[FRecord.ErrCtrl]); end; Dep1Tree.Items.Clear; sl.CommaText:=FRecord.DependOnService; for i:=0 to sl.Count-1 do begin SLM.GetRecordByName(sl[i],r); if r.Name<>'' then begin n:=Dep1Tree.Items.AddChild(nil,r.DisplayName); n.ImageIndex:=0; n.HasChildren:=True; end; end; Dep1Tree.AlphaSort; Dep2Tree.Items.Clear; SLM.GetServiceDependants(FRecord.Name,sl); for i:=0 to sl.Count-1 do begin n:=Dep2Tree.Items.AddChild(nil,sl.ValueFromIndex[i]); n.ImageIndex:=0; n.HasChildren:=True; end; Dep2Tree.AlphaSort; end; |
- Apart from these, stopping, starting, pausing, and resuming the services were implemented in the sample.
It’s that simple to enumerate the Process List and Service List running in your machine and view the details of the process. Use this MiTeC component suite and get the job done quickly.
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