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Qosai_DBAFlag for Palestine, State of

asked on

How to put Program Icon in the status bar near clock?

Hi all,
I have a pragram that manage frequently background process, and I want to start the program and show an Icon near clock, same as Messenger for example.
also
I want to know how to prevent the user to run the program in case of Its already running?

thanks,
Khalid.
Avatar of kretzschmar
kretzschmar
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go to
www.torry.net

you may find there some components,
which does this for you

keyword: trayicon

meikl ;-)
Project --> Show Source
There will be some lines about your Project. Just add some lines there:

program Project1;

uses
  Windows, {added}
  Forms,
  Unit1 in 'Unit1.pas' {Form1};

{$R *.res}

begin
  if CreateMutex(nil, true, 'ProjectAlreadyOpened') <> 0 then {added}
  if GetLastError <> ERROR_ALREADY_EXISTS then begin {added}
    Application.Initialize;
    Application.CreateForm(TForm1, Form1);
    Application.Run;
  end; {added}
end.

This will not allow to open multiple instances of project.
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ZhaawZ
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SOLUTION
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unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  shellapi, Menus;

const
  WM_SYSTRAYCLICK   = WM_USER + 1;

type
  TForm1 = class(TForm)
    PopupMenu1: TPopupMenu;
    File1: TMenuItem;
    procedure FormCreate(Sender: TObject);
  private
    { Private declarations }
    TrayIcon : TNotifyIconData;
    procedure InitNotifyIconData;
    procedure OnSysTrayClick(var Msg : TMsg); message WM_SYSTRAYCLICK;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

{ TForm1 }

procedure TForm1.InitNotifyIconData;
begin
  with TrayIcon do
    begin
      cbSize           := sizeof(TrayIcon);
      Wnd              := Handle;
      uID              := 1;
      uFlags           := NIF_MESSAGE + NIF_ICON + NIF_TIP;
      uCallbackMessage := WM_SYSTRAYCLICK;
      hIcon            := Application.Icon.Handle;
      StrPCopy(szTip, Application.Title);
    end;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  InitNotifyIconData;
  Shell_NotifyIcon(NIM_ADD, @TrayIcon);
end;

procedure TForm1.OnSysTrayClick(var Msg: TMsg);
var Crs : TPoint;
begin
  // check which button was clicked
  case Msg.wParam of
    WM_LBUTTONDBLCLK : begin
                         // double click in the tray - left mouse
                         Form1.Show;
                       end;
    WM_RBUTTONDOWN   : begin
                         // right button - show the popup menu
                         GetCursorPos(Crs);
                         PopupMenu1.Popup(Crs.X, Crs.Y);
                       end;
  end;
end;

end.

   Ou, I forgot something :

   when you destroy / close you should remove it from the systray area :

  procedure TForm1.FormDestroy(Sender: TObject);
  begin
    Shell_NotifyIcon(NIM_DELETE, @TrayIcon);
  end;
Avatar of geobul
geobul

Ivanov_G, what's the difference between your code and mine one ?
geobul's code works well. I accepted his answer to a similar question a while ago using the same code. For the traybar part of the question his works brilliantly

Regards,

Hypoviax
Hypoviax, thank you :-)