Solved

List of taskbar 's runnig process?

Posted on 1998-09-28
10
293 Views
Last Modified: 2010-08-05
I want to know how to get only the taskbar 's process ?
I know that the windows folders have "CabinetWClass" classname (and delphi application are "Tapplication"),but the
applications seem not to have rules.
0
Comment
Question by:seb24
10 Comments
 
LVL 10

Expert Comment

by:viktornet
ID: 1341043
Hello! NOT SURE WHAT YA TALKIN' 'BOUT

REGARDS,
(@VIKTOR_IVANOV)^.NAME;
0
 
LVL 20

Expert Comment

by:Madshi
ID: 1341044
You could use EnumWindows to enumerate all top level windows. Then you have to check each window. Only windows with owner=0 and parent=0 are shown as buttons in the taskbar.
Is that what you want?

Regards, Madshi.
0
 
LVL 4

Expert Comment

by:BoRiS
ID: 1341045
seb24

if yau are looking to get the taskbar use

var
  hw: HWND;
begin
  hw:= FindWindow('Shell_Traywnd', nil);

here is an example of getting the taskbar then show it or hide it...

procedure TForm1.Button1Click(Sender: TObject);
var
  hw: HWND;
begin
  hw:= FindWindow('Shell_Traywnd', nil);
  if hw <> 0 then
    if IsWindowVisible(hw) then
      ShowWindow(hw, SW_HIDE)
    else
      ShowWindow(hw, SW_SHOW);
end;

Later
BoRiS
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 20

Expert Comment

by:Madshi
ID: 1341046
seb24,

tell us a little bit more about what you want to do. Why did you reject Boris' answer? You should always write a comment when rejecting an answer, so we all know what didn't work or what it was that you didn't like.

Regards, Madshi.
0
 

Author Comment

by:seb24
ID: 1341047
I would known the processes who appear in the eplorer 's taskbar ,on the right of the "Start" button.
I tried the Madshi 's answer but I found again too much process.

ps:I'm on NT4 sp3.
////////////////////////////////////////////////////////////////
Unit seb;

Interface

Uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, ComCtrls;

Type
  TForm1 = Class(TForm)
    ListBox1 : TListBox;
    Button1 : TButton;
    Barre_des_tache : TTabControl;
    Button2 : TButton;
    Procedure Button1Click(Sender : TObject);
  private
    { Déclarations privées }
  public
    { Déclarations publiques }
  End;

Var
  Form1 : TForm1;
  ClassName : Array[0..79] Of char;
  str_TApplication,str_OleMainThreadWndClass, str_ClassName, str_DossierOuvert : String;
  h_Process : integer;
Implementation

{$R *.DFM}



Function EnumWindowsCallBack(HWND : hwnd; LPARAM : lParam) : bool stdcall;
Var
  capt : Array[0..79] Of char;

  lpWndClass : TWndClassA;
  tt, zz : variant;
Begin
  zz := 0;
  tt := 1;
  result := true;
  GetWindowText(HWND, capt, 79);
  GetClassName(HWND, ClassName, 79);

  GetClassInfo(HWND, ClassName, lpWndClass);
  h_Process := FindWindow(ClassName, capt);

  str_ClassName := ClassName;
  str_DossierOuvert := 'CabinetWClass';
  str_TApplication := 'TApplication';
  str_OleMainThreadWndClass:='OleMainThreadWndClass';

  If GetWindow(HWND, GW_OWNER)=zz  Then
           if GetParent(HWND)=zz then

    If Length(capt) > 0 Then
      if str_ClassName<>str_OleMainThreadWndClass then
      Begin

        Form1.Listbox1.items.add(capt + '     ' + Classname + '   ' + IntToStr(hwnd) + '   ' + IntToStr(h_Process));

        Form1.Barre_des_tache.Tabs.Add(capt);

      End;
End;

Procedure TForm1.Button1Click(Sender : TObject);
Var
  lpdevmode : tDeviceModeA;
  security : tSecurityAttributes;
  bureau : hdesk;
Begin
  Form1.Barre_des_tache.Tabs.Clear;
  Listbox1.Items.clear;

  lpdevmode.dmSize := SIZEOF(tdevicemodea);
  //lpdevmode.dmDisplayFrequency := 100;
  //lpdevmode.dmPelsWidth:=1024;
  //lpdevmode.dmPelsHeight:=768;
  //lpdevmode.dmFields :=DM_PELSWIDTH + DM_PELSHEIGHT +DM_DISPLAYFREQUENCY;

  security.nLength := sizeof(tsecurityattributes);
  //security.lpSecurityDescriptor:=a;
  //security.bInheritHandle:=false;


  bureau := createDesktop('Test',
    '',
    Nil, //@lpdevmode,
    DF_ALLOWOTHERACCOUNTHOOK + DESKTOP_SWITCHDESKTOP, DESKTOP_ENUMERATE,
    Nil); //@security);

  // EnumDesktopWindows(bureau, @enumwindowscallback, 0);
   //EnumThreadWindows(bureau,@enumwindowscallback,0);

  EnumWindows(@EnumWindowsCallBack, 0);
End;
End.
////////////////////////////////////////////////////////////////
0
 
LVL 10

Expert Comment

by:viktornet
ID: 1341048
Here is an example......

function GetTaskWindows(Handle : HWND; lparam : LPARAM) : Bool;stdcall;
var
  Name : array[0..MAX_PATH] of char;
begin
  if GetWindow(Handle, GW_CHILD) = 0 then begin
    GetWindowText(Handle, Name, SizeOf(Name));
    if StrPas(Name) <> '' then
      Form1.ListBox1.Items.Add(Name);
    Result := True;
  end;
end;

procedure TForm1.FormClick(Sender: TObject);
begin
  EnumWindows(@GetTaskWindows, 0);
end;

Regards,
Viktor Ivanov
0
 
LVL 10

Expert Comment

by:viktornet
ID: 1341049
This is a better code actually....

function GetTaskWindows(Handle : HWND; lparam : LPARAM) : Bool;stdcall;
var
  Name : array[0..MAX_PATH] of char;
begin
  if GetParent(Handle) = 0 then begin
    GetWindowText(Handle, Name, SizeOf(Name));
      if StrPas(Name) <> '' then
        Form1.ListBox1.Items.Add(Name);
    Result := True;
  end;
end;
procedure TForm1.FormClick(Sender: TObject);
begin
  EnumWindows(@GetTaskWindows, 0);
end;

Regards,
Viktor Ivanov
0
 
LVL 20

Expert Comment

by:Madshi
ID: 1341050
Viktor, sorry, not complete...  :-)

seb24, sorry, too. Have forgotten two things:

var taskWindows : string;

Function EnumWindowsCallBack(HWND : hwnd; LPARAM : lParam) : bool stdcall;
var s1   : string;
Begin
  result:=true;
  If (GetWindow(HWND,GW_OWNER)=0) and (GetParent(HWND)=0) and IsWindowVisible(HWND) and
     (GetWindowLong(HWND,GWL_EXSTYLE) and WS_EX_TOOLWINDOW=0) then begin
    SetLength(s1,MAX_PATH);
    GetWindowText(HWND,pchar(s1),MAX_PATH);
    s1:=string(pchar(s1));
    If s1<>'' Then taskWindows:=taskWindows+s1+#$D#$A;
  end;
End;

begin
  EnumWindows(@EnumWindowsCallBack, 0);
  MessageBox(0,pchar(taskWindows),'TaskWindows',0);
end;

Regards, Madshi.
0
 
LVL 10

Expert Comment

by:viktornet
ID: 1341051
Yup..Madshi has got the full procedure... Please reject ym answer and give 'im the points ;->

Regards,
Viktor Ivanov
0
 
LVL 20

Accepted Solution

by:
Madshi earned 50 total points
ID: 1341052
Thanx Viktor, seb24, is it working?

Regards, Madshi.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Is anyone willing to have a look through this code and help debug? 25 91
Delphi Yen format 3 58
Convert MS Word document to a PDF file 9 113
RESTRequest Parameter 4 51
A lot of questions regard threads in Delphi.   One of the more specific questions is how to show progress of the thread.   Updating a progressbar from inside a thread is a mistake. A solution to this would be to send a synchronized message to the…
The uses clause is one of those things that just tends to grow and grow. Most of the time this is in the main form, as it's from this form that all others are called. If you have a big application (including many forms), the uses clause in the in…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

679 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question