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Posted on 2001-09-16
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Last Modified: 2012-05-04
Ned a Demo Project to understand this code!

----------------------------------------------------------
unit ProcessViewer;

interface

uses
      Windows, Dialogs, SysUtils, Classes, ShellAPI, TLHelp32, Forms;

const
      SleepForReCheck=5000;

type TProcessInfo=record
      FileName: string;
      Caption: string;
      Visible: boolean;
      Handle: DWord;
      PClass: string;
      ThreadID: DWord;
      PID: DWord;
end;


var
      DateiList,CaptionList,VisibleList,HandleList,ClassList,ThreadIdList,PIDList: TStringList;
      ProcessInfo: array of TProcessInfo;

function EnumWindowsProc(hWnd: HWND; lParam: LPARAM): Bool; stdcall;
function KillProcessByPID(PID: DWord): boolean;
function KillProcessByFileName(FileName: string; KillAll: boolean): boolean;
procedure GetProcessList;
function GetFileNameFromHandle(Handle: hwnd):string;
function IsFileActive(FileName: String): boolean;

implementation

procedure GetProcessList;
var
      i,Laenge: integer;
begin
DateiList.Clear;
HandleList.Clear;
ClassList.Clear;
CaptionList.Clear;
VisibleList.Clear;
ThreadIdList.Clear;
PIDList.Clear;
EnumWindows(@EnumWindowsProc, 0);
Laenge:=DateiList.Count;
SetLength(ProcessInfo,Laenge);
for i:=0 to Laenge-1 do
begin
      DateiList[i]:=UpperCase(DateiList[i]);
      with ProcessInfo[i] do
      begin
            FileName:=DateiList[i];
            Caption:=CaptionList[i];
            Visible:=VisibleList[i]='1';
            Handle:=StrToInt64(HandleList[i]);
            PClass:=ClassList[i];
            ThreadID:=StrToInt64(ThreadIdList[i]);
            PID:=StrToInt64(PIDList[i]);
      end;
end;
end;

function IsFileActive(FileName: String): boolean;
var
      i: integer;
begin
result:=false;
if FileName='' then exit;
GetProcessList;
FileName:=UpperCase(ExtractFileName(FileName));
for i:=0 to Length(ProcessInfo)-1 do
begin
      if Pos(FileName,ProcessInfo[i].FileName)>0 then
      begin
            result:=true;
            break;
      end;
end;
end;

function GetFileNameFromHandle(Handle: hwnd):string;
var
      PID: DWord;
      aSnapShotHandle: THandle;
      ContinueLoop: Boolean;
      aProcessEntry32: TProcessEntry32;
begin
GetWindowThreadProcessID(Handle, @PID);
aSnapShotHandle := CreateToolHelp32SnapShot(TH32CS_SNAPPROCESS, 0);
aProcessEntry32.dwSize := SizeOf(aProcessEntry32);
ContinueLoop := Process32First(aSnapShotHandle, aProcessEntry32);
while Integer(ContinueLoop) <> 0 do
begin
      if aProcessEntry32.th32ProcessID = PID then
      begin
            result:=aProcessEntry32.szExeFile;
            break;
      end;
      ContinueLoop := Process32Next(aSnapShotHandle, aProcessEntry32);
end;
CloseHandle(aSnapShotHandle);
end;

function EnumWindowsProc(hWnd: HWND; lParam: LPARAM): Bool;
var
      Capt,Cla: array[0..255] of char;
      Datei: string;
      ident: dword;
begin
GetWindowText(hWnd, Capt, 255);
GetClassName(hwnd,Cla,255);
ThreadIdList.Add(IntToStr(GetWindowThreadProcessId(hwnd,nil)));
Datei:=GetFileNameFromhandle(hwnd);
DateiList.Add(Datei);
HandleList.Add(IntToStr(HWnd));
if IsWindowVisible(HWnd) then VisibleList.Add('1') else VisibleList.Add('0');
ClassList.Add(Cla);
CaptionList.Add(Capt);
GetWindowThreadProcessId(StrToInt(HandleList[HandleList.Count-1]),@ident);
PIDList.Add(IntToStr(ident));
Result:=true;
end;

function KillProcessByPID(PID : DWord): boolean;
var
      myhandle : THandle;
      i: integer;
begin
myhandle := OpenProcess(PROCESS_TERMINATE, False, PID);
TerminateProcess(myhandle, 0);
for i:=0 to SleepForReCheck do Application.ProcessMessages; //Genug Zeit geben
GetProcessList;
Result:=PIDList.IndexOf(IntToStr(PID))=-1;
end;

function KillProcessByFileName(FileName: string; KillAll: boolean): boolean;
var
      i: integer;
      FileFound: boolean;
begin
result:=false;
if FileName='' then exit;
FileName:=UpperCase(ExtractFileName(FileName));
result:=true;
GetProcessList;
if KillAll then
begin
      //Kill all
      FileFound:=false;
      repeat
            GetProcessList;
            FileFound:=false;
            for i:=0 to DateiList.Count-1 do
            begin
                  if Pos(Filename,DateiList[i])>0 then
                  begin
                        FileFound:=true;
                        break;
                  end;
            end;
            if i<DateiList.Count then
            begin
                  if not KillProcessByPID(StrToInt64(PIDList[i])) then
                  begin
                        result:=false;
                        exit;
                  end;
            end;
      until not FileFound;
end else
begin
      //Kill one
      for i:=0 to DateiList.Count-1 do
      begin
            if Pos(Filename,DateiList[i])>0 then break;
      end;
      if i<DateiList.Count then
      begin
            if not KillProcessByPID(StrToInt64(PIDList[i])) then
            begin
                  result:=false;
                  exit;
            end;
      end;
end;
end;

initialization
DateiList:=TStringList.Create;
HandleList:=TStringList.Create;
ClassList:=TStringList.Create;
CaptionList:=TStringList.Create;
VisibleList:=TStringList.Create;
ThreadIdList:=TStringList.Create;
PIDList:=TStringList.Create;

finalization
DateiList.Free;
HandleList.Free;
ClassList.Free;
CaptionList.Free;
VisibleList.Free;
ThreadIdList.Free;
PIDList.Free;

end.
0
Comment
Question by:SULTAN
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10 Comments
 
LVL 1

Expert Comment

by:Fraction
ID: 6486229
Doesn't this look like a demo project? What exactly do you not understand?
0
 

Author Comment

by:SULTAN
ID: 6486246
How to use it and list it in difrent(Name, Caption, Path) columns in a ListView

Im just a beginer + Im a litle stupid
0
 
LVL 1

Accepted Solution

by:
Fraction earned 50 total points
ID: 6487453
Hi Sultan!
You don't need to be stupid just because your a beginner ;-)

Anyway, try to create a new application and paste this code, it might help you getting started:

// -- (Cut from here!) -------------------
unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, ProcessViewer,
  StdCtrls, ComCtrls, ExtCtrls;

type
  TForm1 = class(TForm)
    procedure FormCreate(Sender: TObject);
  private
    Panel: TPanel;
    ListView: TListView;
    Button: TButton;
    procedure GetListClick(Sender: TObject);
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.FormCreate(Sender: TObject);
begin
  Panel := TPanel.Create(Form1);
  Panel.Parent := Form1;
  Panel.Align := alBottom;
  Panel.Height := 23;

  ListView := TListView.Create(Form1);
  ListView.Parent := Form1;
  ListView.Align := alClient;
  ListView.ViewStyle := vsReport;

  with ListView.Columns.Add do begin
    Caption := 'FileName';
    AutoSize := true;
  end;
  with ListView.Columns.Add do begin
    Caption := 'Caption';
    AutoSize := true;
  end;
  with ListView.Columns.Add do begin
    Caption := 'Visible';
    AutoSize := true;
  end;
  with ListView.Columns.Add do begin
    Caption := 'Handle';
    AutoSize := true;
  end;
  with ListView.Columns.Add do begin
    Caption := 'Class';
    AutoSize := true;
  end;
  with ListView.Columns.Add do begin
    Caption := 'ThreadID';
    AutoSize := true;
  end;

  Button := TButton.Create(Panel);
  Button.Parent := Panel;
  Button.Align := alLeft;
  Button.Width := 100;
  Button.Caption := 'Get Process List';
  Button.OnClick := GetListClick;
end;

procedure TForm1.GetListClick(Sender: TObject);
var
  s: string;
  i: integer;
begin
  GetProcessList;
  for i:=0 to Length(ProcessInfo)-1 do begin
    with ListView.Items.Add do begin
      Caption := ProcessInfo[i].FileName;
      SubItems.Add(ProcessInfo[i].Caption);
      if ProcessInfo[i].Visible then s := 'true' else s := 'false';
      SubItems.Add(s);
      SubItems.Add(IntToStr(ProcessInfo[i].Handle));
      SubItems.Add(ProcessInfo[i].PClass);
      SubItems.Add(IntToStr(ProcessInfo[i].ThreadID));
      SubItems.Add(IntToStr(ProcessInfo[i].PID));
    end;
  end;
end;

end.
// -- (Cut to here!) -------------------

//GL Fraction!
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LVL 1

Expert Comment

by:Fraction
ID: 6487462
PS! You need to have the ProcessViewer unit in the same directory as your new application.
0
 
LVL 1

Expert Comment

by:Fraction
ID: 6488279
PS 2! You might want to clear listview before you update it:

procedure TForm1.GetListClick(Sender: TObject);
var
  s: string;
  i: integer;
begin
  GetProcessList;
  ListView.Items.BeginUpdate;
  ListView.Items.Clear;
  for i:=0 to Length(ProcessInfo)-1 do begin
    with ListView.Items.Add do begin
      Caption := ProcessInfo[i].FileName;
      SubItems.Add(ProcessInfo[i].Caption);
      if ProcessInfo[i].Visible then s := 'true' else s := 'false';
      SubItems.Add(s);
      SubItems.Add(IntToStr(ProcessInfo[i].Handle));
      SubItems.Add(ProcessInfo[i].PClass);
      SubItems.Add(IntToStr(ProcessInfo[i].ThreadID));
      SubItems.Add(IntToStr(ProcessInfo[i].PID));
    end;
  end;
  ListView.Items.EndUpdate;
end;
0
 

Author Comment

by:SULTAN
ID: 6489140
Is it possible to just get the short name of the file and only show the main process? not ther windows...and then visible or not?
0
 
LVL 1

Expert Comment

by:Fraction
ID: 6489432
Short name? If you want to extract only the filename use the ExtractFileName function i.e:
Caption := ExtractFileName(ProcessInfo[i].FileName);

If you want the short (DOS) alias then follow this link:
http://www.experts-exchange.com/jsp/qManageQuestion.jsp?ta=delphi&qid=20091847

I think you can check the PClass in ProcessInfo for "TApplication" to get the main processes i.e:

  if LowerCase(ProcessInfo[i].PClass) = 'tapplication' then
  with ListView.Items.Add do begin
    Caption := ExtractFileName(ProcessInfo[i].FileName);
    etc...
  end;
0
 

Author Comment

by:SULTAN
ID: 6498498
the example with 'tapplication' just showed 3 .exe files not the main .dll and the other progs that was running.

Any idea?
0
 

Author Comment

by:SULTAN
ID: 6510746
Any one? also not included....how to kill the file
0
 

Author Comment

by:SULTAN
ID: 6512286
If u could show me how to do the rest I can give you more points
0

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