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.
LVL 1
Qosai_DBAAsked:
Who is Participating?
 
ZhaawZSoftware DeveloperCommented:
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 else begin {added}
    SetForegroundWindow(FindWindow('TForm1',nil)); {added}
  end; {added}
end.

Last 2 of added lines will show the project, if it's already opened.
0
 
kretzschmarCommented:
go to
www.torry.net

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

keyword: trayicon

meikl ;-)
0
 
kretzschmarCommented:
0
Cloud Class® Course: SQL Server Core 2016

This course will introduce you to SQL Server Core 2016, as well as teach you about SSMS, data tools, installation, server configuration, using Management Studio, and writing and executing queries.

 
ZhaawZSoftware DeveloperCommented:
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.
0
 
geobulCommented:
Hi,

An example of a tray app without using third-party components (with menu when it's in the tray):

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  Menus, ShellApi; // ShellApi has been added manually

type
  TForm1 = class(TForm)
    PopupMenu1: TPopupMenu; // tray menu
    Show1: TMenuItem; // show the app
    Exit1: TMenuItem; // close the app
    procedure ToTray;
    procedure FormCreate(Sender: TObject);
    procedure FormActivate(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure Show1Click(Sender: TObject);
    procedure Exit1Click(Sender: TObject);
  protected
    procedure WndProc(var Msg : TMessage); override;
  public
    IconNotifyData : TNotifyIconData;
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.ToTray;
begin
  Form1.Hide;
end;

procedure TForm1.WndProc(var Msg : TMessage);
var
  p : TPoint;
begin
  case Msg.Msg of
    WM_USER+1:
    case Msg.lParam of
      WM_RBUTTONUP: begin // popup menu on right-click in the tray
        GetCursorPos(p);
        PopupMenu1.Popup(p.x, p.y);
      end;
      WM_LBUTTONUP: begin // show the app on left-click in the tray
         Form1.Show;
      end;
    end;
  end;
  if (Msg.Msg = WM_SYSCOMMAND) and (Msg.wParam = SC_MINIMIZE) then begin
    ToTray;
    Msg.wParam := 0;
    Msg.lParam :=0;
  end;
  inherited;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  with IconNotifyData do begin
    hIcon :=Application.Icon.Handle;
    uCallbackMessage := WM_USER + 1;
    cbSize := sizeof(IconNotifyData);
    Wnd := Handle;
    uID := 100;
    uFlags := NIF_MESSAGE + NIF_ICON + NIF_TIP;
  end;
  StrPCopy(IconNotifyData.szTip, 'Hint Message'); // <-- modify the message
  Shell_NotifyIcon(NIM_ADD, @IconNotifyData);
end;

procedure TForm1.FormActivate(Sender: TObject);
begin
  ShowWindow(Application.Handle, SW_HIDE);
  SetWindowLong(Application.Handle, GWL_EXSTYLE, WS_EX_TOOLWINDOW);
end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
  Shell_NotifyIcon(NIM_DELETE, @IconNotifyData);
  Application.ProcessMessages;
end;

procedure TForm1.Show1Click(Sender: TObject);
begin
  Form1.Show;
end;

procedure TForm1.Exit1Click(Sender: TObject);
begin
  Close;
end;

end.

Regards, Geo
0
 
Ivanov_GCommented:
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.
0
 
Ivanov_GCommented:

   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;
0
 
geobulCommented:
Ivanov_G, what's the difference between your code and mine one ?
0
 
HypoviaxCommented:
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
0
 
geobulCommented:
Hypoviax, thank you :-)
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.