[AlexEr81]

я использую этот код:

Код:

.....
type
  TForm1 = class(TForm)
......
 public
    procedure CREATETRAYICON(n:integer);
    procedure DELETETRAYICON(n:integer);
    procedure WMICON(var msg:Tmessage); message WM_MYTRAYNOTIFY;
    procedure WMSYSCOMMAND(var msg:Tmessage);message WM_SYSCOMMAND;
    procedure HIDEmainForm;
    procedure RestoreMainForm;
   .....

procedure TForm1.WMSYSCOMMAND(var msg:Tmessage);
begin
inherited;
if (msg.WParam=SC_MINIMIZE) then
 begin
  hidemainform;
 // createtrayicon(1); иконку можно создать при запуске а не только при сворачивании 
  end;
end;

procedure TForm1.HIDEmainForm;
begin
application.ShowMainForm:=false;
ShowWindow(application.Handle, SW_HIDE);
ShowWindow(application.Mainform.Handle, SW_HIDE);
end;

procedure TForm1.RestoreMainForm;
var i,j:integer;
begin
 application.ShowMainForm:=true;
ShowWindow(application.Handle, SW_RESTORE);
ShowWindow(application.Mainform.Handle, SW_RESTORE);
if not ShownOnce then
begin
 for i:= 0 to application.MainForm.ComponentCount -1 do
  if application.MainForm.Components[i] is Twincontrol then
   with application.MainForm.Components[i] as Twincontrol do
    if visible then
     begin
      showWindow(handle, SW_SHOWDEFAULT);
       for j:=0 to componentcount -1 do
        if components[j] is twincontrol then
         showWindow((components[j] as Twincontrol).handle,SW_SHOWDEFAULT);

     end;
   shownonce:=true;

end;

end;

procedure TForm1.CREATETRAYICON(n:integer);
var nidata:TnotifyIcondata;
begin
with nidata do
begin
  cbSize:=Sizeof(TnotifyIcondata);
  Wnd:=Self.Handle;
  uId:=n;
  uFlags:=NIF_ICON or NIF_MESSAGE or NIF_TIP;
  uCallBackMessage:=WM_MYTRAYNOTIFY;
  hIcon:=Application.Icon.Handle;
  szTip:='подсказка';
end;
Shell_notifyIcon(NIM_ADD,@nidata);
////
end;

procedure TForm1.WMICON(var msg:Tmessage);  
var p:Tpoint;
begin
case msg.LParam of
WM_RBUTTONDOWN: begin
                 getcursorpos(p);
                 setForegroundWindow(application.MainForm.Handle);
                 sysMenu.Popup(p.X,p.Y);
                end;
end
          
///
end;

 procedure TForm1.DELETETRAYICON(n:integer);
var nidata:TnotifyIcondata;
begin
with nidata do
begin
  cbSize:=Sizeof(TnotifyIcondata);
  Wnd:=Self.Handle;
  uId:=n;
end;
Shell_notifyIcon(NIM_DELETE,@nidata);
end;
 
после события формы FormCreate 
делаем
form1.CREATETRAYICON(1);
 и
form1.hidemainform;

а в событии OnClick одного из пунктов sysMenu 
делаем
restoremainform;