Эмуляция многоэкранного режима

Code:

{** Building a multi screen emulator ***

I want to present a simple multi-screen emulator written in Delphi.

It consists in a little Form placing in the bottom-right corner of the screen,

right above the traybar, which consists of 5 buttons.

At the beginning the first button is down; then, when I press another button,

a new fresh desktop is opened. In this new desktop I can open other programs

and so on with the other buttons. When I go back to one of the buttons,

I will see only the applications opened in that contest without the others.

The trick is to make the following steps just before pressing another button:

1)Get the handles of all the visible windows (except for Desktop,

Taskbar and the application itself)

2)Hiding all the windows detecting at step 1).

After pressing the button we must:

1)Show all the windows whose handles we got when we left

the button itself by pressing another.

Of course if a button is pressed for the first time we have no

handles so we will have a new fresh desktop.

I want to retrieve the handles of all the visible windows:

the key is a call to the “EnumWindows” procedure

passing as a parameter a callback function called for example “EnumWindowsProc”.

This callback function must be of the following type:

}

function EnumWindowsProc(hWnd: HWND; lParam: LPARAM): Bool;

// The EnumWindows function is of type:

BOOL EnumWindows(

WNDENUMPROC lpEnumFunc, // pointer to callback function

LPARAM lParam // application-defined value

);

{

I will call EnumWindows(@EnumWindowsProc, 0);

The “EnumWindows” function loop over all windows (visible or invisible):

for each window there is a call to the callback function

“EnumWindowsProc” wich must be implemented.

The first param “hWnd” is the handle of the current window.

A possible implementation of the “EnumWindowsProc” function may be the inserting

of every handle in a list.

According to our target we must insert in a list the handle of

the following windows:

1)Visible windows //(IsWindowVisible(hwnd) = True)

2)Not my application window

//var processed: DWORD;

//GetWindowThreadProcessID( hwnd, @processID );

//processID <> GetCurrentProcessID

3)Not the taskbar window //hWnd <> FindWindow('Shell_TrayWnd', Nil)

4)Not the desktop window //hWnd <> FindWindow('Progman', Nil)

}

// This is the code:

unit ProcessView;

interface

uses

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

var

HandleList: TStringList;

function EnumWindowsProc(hWnd: HWND; lParam: lParam): Bool; stdcall;

procedure GetProcessList;

implementation

procedure GetProcessList;

var

i: integer;

begin

HandleList.Clear;

EnumWindows(@EnumWindowsProc, 0);

end;

function EnumWindowsProc(hWnd: HWND; lParam: lParam): Bool;

var

processID: DWORD;

begin

GetWindowThreadProcessID(hwnd, @processID);

if processID <> GetCurrentProcessID then

if (hWnd <> FindWindow('Shell_TrayWnd', nil)) and

(hWnd <> FindWindow('Progman', nil)) then

if IsWindowVisible(hwnd) then

begin

HandleList.Add(IntToStr(HWnd));

Result := True;

end;

initialization

HandleList := TStringList.Create;

finalization

HandleList.Free;

end.

{

In the main program I used a variable named Monitors of type

“array of TstringList” whose dimension is given by the number of buttons

(different monitors available) to keep in memory all the hanldes

associated with every button. Another variable named CurrentMonitor

keeps in memory the index of the actual monitor (the caption of the button).

This is the code:

}

unit Unit1;

interface

uses

Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, ProcessView,

StdCtrls, Buttons, abfComponents, Menus, ImgList, AppEvnts, TrayIcon;

type

TForm1 = class(TForm)

//these are the buttons (1..5) to switch from a monitor to another ///

SpeedButton1: TSpeedButton;

SpeedButton2: TSpeedButton;

SpeedButton3: TSpeedButton;

SpeedButton4: TSpeedButton;

SpeedButton5: TSpeedButton;

///////////////////////////////////////////////////////////////////////

ImageList1: TImageList; //ImageList connected to the Popup menu

PopupMenu1: TPopupMenu; //popup menu displayed by the trayicon

//PopupMenu Items///////

ShowApplication: TMenuItem; //Show the form

HideApplication: TMenuItem; //Hide the form

N1: TMenuItem; // -

CloseApplication: TMenuItem; //Close the application

////////////////////////////////

TrayIcon1: TTrayIcon; //my TrayIcon component; you can use yours

procedure SpeedButton1Click(Sender: TObject);

procedure FormCreate(Sender: TObject);

procedure FormDestroy(Sender: TObject);

procedure FormClose(Sender: TObject; var Action: TCloseAction);

procedure FormShow(Sender: TObject);

procedure ShowApplicationClick(Sender: TObject);

//click on ShowApplication (TMenuItem)

procedure HideApplicationClick(Sender: TObject);

//click on HideApplication (TMenuItem)

procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);

procedure CloseApplicationClick(Sender: TObject);

//click on CloseApplication (TMenuItem)

private

{ Private declarations }

Monitors: array[1..5] of TStringList;

CurrentMonitor: Integer;

public

{ Public declarations }

end;

var

Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.SpeedButton1Click(Sender: TObject);

var

i: integer;

Rect: TRect;

begin

GetProcessList;

Monitors[CurrentMonitor].Assign(HandleList);

for i := 0 to HandleList.Count - 1 do

begin

ShowWindow(StrToInt(HandleList.Strings[i]), SW_HIDE);

end;

CurrentMonitor := StrToInt((Sender as TSpeedButton).Caption);

for i := 0 to Monitors[CurrentMonitor].Count - 1 do

begin

ShowWindow(StrToInt(Monitors[CurrentMonitor].Strings[i]), SW_SHOW);

end;

procedure TForm1.FormCreate(Sender: TObject);

var

i: integer;

begin

ShowWindow(Application.Handle, SW_HIDE);

SetWindowLong(Application.Handle,

GWL_EXSTYLE, GetWindowLong(Application.Handle, GWL_EXSTYLE) and

not WS_EX_APPWINDOW or WS_EX_TOOLWINDOW);

ShowWindow(Application.Handle, SW_SHOW);

CurrentMonitor := 1;

for i := Low(Monitors) to High(Monitors) do

Monitors[i] := TStringList.Create;

end;

procedure TForm1.FormDestroy(Sender: TObject);

var

i: integer;

begin

for i := Low(Monitors) to High(Monitors) do

Monitors[i].Free;

end;

procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);

var

i, j: integer;

begin

for i := Low(Monitors) to High(Monitors) do

begin

for j := 0 to Monitors[i].Count - 1 do

begin

ShowWindow(StrToInt(Monitors[i].Strings[j]), SW_SHOW);

end;

procedure TForm1.FormShow(Sender: TObject);

begin

Height := 61;

Width := 173;

Top := Screen.Height - Height - 30;

Left := Screen.Width - Width;

end;

procedure TForm1.ShowApplicationClick(Sender: TObject);

begin

Application.MainForm.Show;

end;

procedure TForm1.HideApplicationClick(Sender: TObject);

begin

Application.MainForm.Hide;

end;

procedure TForm1.FormCloseQuery(Sender: TObject; var CanClose: Boolean);

begin

if MessageDlg('Do you want to close Monitors?', mtConfirmation,

[mbOK, mbCancel], 0) = mrCancel then

CanClose := False;

end;

procedure TForm1.CloseApplicationClick(Sender: TObject);

begin

Close;

end;

end.

{

In order to prevent multiple instances of the application I inserted

some lines of code inside the project source;

this is the modified source:

}

program Project1;

uses

Forms,

Windows,

Unit1 in 'Unit1.pas' {Form1};

{$R *.RES}

var

atom: integer;

begin

if GlobalFindAtom('Monitors_Procedure_Atom') = 0 then

atom := GlobalAddAtom('Monitors_Procedure_Atom')

else

Exit;

Application.Initialize;

Application.CreateForm(TForm1, Form1);

Application.Run;

GlobalDeleteAtom(atom);

end.

{

The GlobalAddAtom function adds a character string to the global atom table

and returns a unique value (an atom) identifying the string.

The GlobalFindAtom function searches the global atom table for the

specified character string and retrieves the global atom associated with that string.

If I have already run the programm then the GlobalFindAtom function returns a value

<> 0 because the atom is already present: in this case I abort the execution of the program.

Instead, if the GlobalFindAtom function returns 0 then this is the first time I run the

program, so I create the atom. At the end I delete the atom.

In order to remove the button on the taskbar I inserted the following code

inside the OnCreate event of the form:

}

{...}

ShowWindow( Application.handle, SW_HIDE );

SetWindowLong( Application.handle,

GWL_EXSTYLE,

GetWindowLong( application.handle, GWL_EXSTYLE ) and

not WS_EX_APPWINDOW or WS_EX_TOOLWINDOW);

ShowWindow( Application.handle, SW_SHOW );

{...}

{

In order to have a tray icon in the traybar (wich display a menu containing showing,

hiding and closing of the form), I used a component (TTrayIcon),

I built a year ago; this is the source:

}

unit TrayIcon;

interface

uses

Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,

ShellAPI, extctrls, Menus;

const

WM_SYSTEM_TRAY_NOTIFY = WM_USER + 1;

type TTrayIconMessage =(imClick, imDoubleClick, imMouseDown,

imMouseUp, imLeftClickUp, imLeftDoubleClick,

imRightClickUp, imRightDoubleClick, imNone);

type

TTrayIcon = class(TComponent)

private

{ Private declarations }

FData: TNotifyIconData;

FIsClicked: Boolean;

FIcon: TIcon;

FIconList: TImageList;

FPopupMenu: TPopupMenu;

FTimer: TTimer;

FHint: string;

FIconIndex: integer;

FVisible: Boolean;

FHide: Boolean;

FAnimate: Boolean;

FAppRestore: TTrayIconMessage;

FPopupMenuShow: TTrayIconMessage;

FApplicationHook: TWindowHook;

FOnMinimize: TNotifyEvent;

FOnRestore: TNotifyEvent;

FOnMouseMove: TMouseMoveEvent;

FOnMouseExit: TMouseMoveEvent;

FOnMouseEnter: TMouseMoveEvent;

FOnClick: TNotifyEvent;

FOnDblClick: TNotifyEvent;

FOnMouseDown: TMouseEvent;

FOnMouseUp: TMouseEvent;

FOnAnimate: TNotifyEvent;

FOnCreate: TNotifyEvent;

FOnDestroy: TNotifyEvent;

FOnActivate: TNotifyEvent;

FOnDeactivate: TNotifyEvent;

procedure SetHint(Hint: string);

procedure SetHide(Value: Boolean);

function GetAnimateInterval: integer;

procedure SetAnimateInterval(Value: integer);

function GetAnimate: Boolean;

procedure SetAnimate(Value: Boolean);

procedure EndSession;

function ShiftState: TShiftState;

protected

{ Protected declarations }

procedure SetVisible(Value: Boolean); virtual;

procedure DoMessage(var Message: TMessage);virtual;

procedure DoClick; virtual;

procedure DoDblClick; virtual;

procedure DoMouseMove(Shift: TShiftState; X: integer; Y: integer); virtual;

procedure DoMouseDown(Button: TMouseButton; Shift: TShiftState; X: integer; Y: integer); virtual;

procedure DoMouseUp(Button: TMouseButton; Shift: TShiftState; X: integer; Y: integer); virtual;

procedure DoOnAnimate(Sender: TObject); virtual;

procedure Notification(AComponent: TComponent; Operation: TOperation); override;

function ApplicationHookProc(var Message: TMessage): Boolean;

procedure Loaded(); override;

property Data: TNotifyIconData read FData;

public

{ Public declarations }

constructor Create(Owner: TComponent); override;

destructor Destroy; override;

procedure Minimize(); virtual;

procedure Restore(); virtual;

procedure Update(); virtual;

procedure ShowMenu(); virtual;

procedure SetIconIndex(Value: integer); virtual;

procedure SetDefaultIcon(); virtual;

function GetHandle():HWND;

published

{ Published declarations }

property Visible: Boolean read FVisible write SetVisible default false;

property Hint: string read FHint write SetHint;

property PopupMenu: TPopupMenu read FPopupMenu write FPopupMenu;

property Hide: Boolean read FHide write SetHide;

property RestoreOn: TTrayIconMessage read FAppRestore write FAppRestore;

property PopupMenuOn: TTrayIconMessage read FPopupMenuShow write FPopupMenuShow;

property Icons: TImageList read FIconList write FIconList;

property IconIndex: integer read FIconIndex write SetIconIndex default 0;

property AnimateInterval: integer read GetAnimateInterval write SetAnimateInterval default 1000;

property Animate: Boolean read GetAnimate write SetAnimate default false;

property Handle: HWND read GetHandle;

// Events

property OnMinimize: TNotifyEvent read FOnMinimize write FOnMinimize;

property OnRestore: TNotifyEvent read FOnRestore write FOnRestore;

property OnClick: TNotifyEvent read FOnClick write FOnClick;

property OnMouseEnter: TMouseMoveEvent read FOnMouseEnter write FOnMouseEnter;

property OnMouseExit: TMouseMoveEvent read FOnMouseExit write FOnMouseExit;

property OnMouseMove: TMouseMoveEvent read FOnMouseMove write FOnMouseMove;

property OnMouseUp:TMouseEvent read FOnMouseUp write FOnMouseUp;

property OnMouseDown: TMouseEvent read FOnMouseDown write FOnMouseDown;

property OnAnimate: TNotifyEvent read FOnAnimate write FOnAnimate;

property OnCreate: TNotifyEvent read FOnCreate write FOnCreate;

property OnDestroy: TNotifyEvent read FOnDestroy write FOnDestroy;

property OnActivate: TNotifyEvent read FOnActivate write FOnActivate;

property OnDeactivate: TNotifyEvent read FOnDeactivate write FOnDeactivate;

end;

procedure Register;

implementation

procedure Register;

begin

RegisterComponents('Carlo Pasolini', [TTrayIcon]);

end;

constructor TTrayIcon.Create(Owner: TComponent);

begin

inherited;

FIcon := TIcon.Create();

FTimer := TTimer.Create(nil);

FIconIndex := 0;

FIcon.Assign(Application.Icon);

FAppRestore := imDoubleClick;

FOnAnimate := DoOnAnimate;

FPopupMenuShow := imNone;

FVisible := false;

FHide := true;

FTimer.Enabled := false;

FTimer.OnTimer := OnAnimate;

FTimer.Interval := 1000;

if not (csDesigning in ComponentState) then

begin

FillChar(FData, sizeof(TNotifyIconData), #0);

// memset(&FData, 0, sizeof(TNotifyIconData));

FData.cbSize := sizeof(TNotifyIconData);

FData.Wnd := AllocateHWnd(DoMessage);

FData.uID := UINT(Self);

FData.hIcon := FIcon.Handle;

FData.uFlags := NIF_ICON or NIF_MESSAGE;

FData.uCallbackMessage := WM_SYSTEM_TRAY_NOTIFY;

FApplicationHook := ApplicationHookProc;

Update;

end;

//---------------------------------------------------------------------------

destructor TTrayIcon.Destroy();

begin

if not (csDesigning in ComponentState) then

begin

Shell_NotifyIcon(NIM_DELETE, @FData); //booh forse @FData

DeallocateHWnd(FData.Wnd);

end;

if (Assigned(FIcon)) then

FIcon.Free;

if (Assigned(FTimer)) then

FTimer.Free;

inherited;

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.Notification(AComponent: TComponent; Operation: TOperation);

begin

inherited Notification(AComponent, Operation);

if Operation = opRemove then

begin

if (AComponent = FIconList) then

FIconList := nil

else

if (AComponent = FPopupMenu) then

FPopupMenu := nil;

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.Loaded();

begin

inherited Loaded();

if (not Assigned(FIconList)) then

begin

FAnimate := false;

FIcon.Assign(Application.Icon);

end

else

begin

FTimer.Enabled := FAnimate;

FIconList.GetIcon(FIconIndex, FIcon);

end;

Update();

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.SetVisible(Value: Boolean);

begin

FVisible := Value;

if not (csDesigning in ComponentState) then

begin

if FVisible then

begin

if (not Shell_NotifyIcon(NIM_ADD, @FData)) then

raise EOutOfResources.Create('Cannot Create System Shell Notification Icon');

Hide := true;

Application.HookMainWindow(FApplicationHook);

end

else

begin

if (not Shell_NotifyIcon(NIM_DELETE, @FData)) then

raise EOutOfResources.Create('Cannot Remove System Shell Notification Icon');

Hide := false;

Application.UnhookMainWindow(FApplicationHook);

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.SetHint(Hint: string);

begin

// The new hint must be different than the previous hint and less than

// 64 characters to be modified. 64 is an operating system limit.

if ((FHint <> Hint) and (Length(Hint) < 64)) then

begin

FHint := Hint;

StrPLCopy(FData.szTip, Hint, sizeof(FData.szTip) - 1);

// If there is no hint then there is no tool tip.

if (Length(Hint) <> 0) then

FData.uFlags := FData.uFlags or NIF_TIP

else

FData.uFlags := FData.uFlags and (not NIF_TIP);

Update();

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.SetHide(Value: Boolean);

begin

FHide := Value;

end;

//---------------------------------------------------------------------------

function TTrayIcon.GetAnimateInterval(): integer;

begin

Result := FTimer.Interval;

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.SetAnimateInterval(Value: integer);

begin

FTimer.Interval := Value;

end;

//---------------------------------------------------------------------------

function TTrayIcon.GetAnimate(): Boolean;

begin

Result := FAnimate;

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.SetAnimate(Value: Boolean);

begin

if (Assigned(FIconList) or (csLoading in ComponentState)) then

FAnimate := Value;

if (Assigned(FIconList) and (not (csDesigning in ComponentState))) then

FTimer.Enabled := Value;

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.EndSession();

begin

Shell_NotifyIcon(NIM_DELETE, @FData);

end;

//---------------------------------------------------------------------------

function TTrayIcon.ShiftState(): TShiftState;

var

Res: TShiftState;

begin

Res := [];

if (GetKeyState(VK_SHIFT) < 0) then

Res := Res + [ssShift];

if (GetKeyState(VK_CONTROL) < 0) then

Res := Res + [ssCtrl];

if (GetKeyState(VK_MENU) < 0) then

Res := Res + [ssAlt];

Result := Res;

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.DoMessage(var Message: TMessage);

var

point: TPoint;

shift: TShiftState;

begin

case (Message.Msg) of

//begin

WM_QUERYENDSESSION:

Message.Result := 1;

//break;

WM_ENDSESSION:

EndSession();

//break;

WM_SYSTEM_TRAY_NOTIFY:

case (Message.LParam) of

//begin

WM_MOUSEMOVE:

if (Assigned(FOnClick)) then

begin

shift := ShiftState();

GetCursorPos(point);

DoMouseMove(shift, point.x, point.y);

end;

//break;

WM_LBUTTONDOWN:

begin

shift := ShiftState();

shift := shift + [ssLeft];

GetCursorPos(point);

DoMouseDown(mbLeft, shift, point.x, point.y);

FIsClicked := true;

//break;

end;

WM_LBUTTONUP:

begin

shift := ShiftState();

shift := shift + [ssLeft];

GetCursorPos(point);

if (Assigned(FOnClick)) then

DoClick();

DoMouseUp(mbLeft, shift, point.x, point.y);

if (FAppRestore = imLeftClickUp) then

Restore();

if (FPopupMenuShow = imLeftClickUp) then

ShowMenu();

//break;

end;

WM_LBUTTONDBLCLK:

begin

DoDblClick();

if (FAppRestore = imLeftDoubleClick) then

Restore();

if (FPopupMenuShow = imLeftDoubleClick) then

ShowMenu();

//break;

end;

WM_RBUTTONDOWN:

begin

shift := ShiftState();

shift := shift + [ssRight];

GetCursorPos(point);

DoMouseDown(mbRight, shift, point.x, point.y);

//break;

end;

WM_RBUTTONUP:

begin

shift := ShiftState();

shift := shift + [ssRight];

GetCursorPos(point);

DoMouseUp(mbRight, shift, point.x, point.y);

if (FAppRestore = imRightClickUp) then

Restore();

if (FPopupMenuShow = imRightClickUp) then

ShowMenu();

//break;

end;

WM_RBUTTONDBLCLK:

begin

DoDblClick();

if (FAppRestore = imRightDoubleClick) then

Restore();

if (FPopupMenuShow = imRightDoubleClick) then

ShowMenu();

//break;

end;

WM_MBUTTONDOWN:

begin

shift := ShiftState();

shift := shift + [ssMiddle];

GetCursorPos(point);

DoMouseDown(mbMiddle, shift, point.x, point.y);

//break;

end;

WM_MBUTTONUP:

begin

shift := ShiftState();

shift := shift + [ssMiddle];

GetCursorPos(point);

DoMouseUp(mbMiddle, shift, point.x, point.y);

//break;

end;

WM_MBUTTONDBLCLK:

DoDblClick();

//break;

end;

inherited Dispatch(Message);

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.ShowMenu();

var

point: TPoint;

begin

GetCursorPos(point);

if (Screen.ActiveForm.Handle <> 0) then

SetForegroundWindow(Screen.ActiveForm.Handle);

FPopupMenu.Popup(point.x, point.y);

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.DoClick();

begin

if (FAppRestore = imClick) then

Restore();

if (FPopupMenuShow = imClick) then

ShowMenu();

if (Assigned(FOnClick)) then

FOnClick(Self);

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.DoDblClick();

begin

if (FAppRestore = imDoubleClick) then

Restore();

if (FPopupMenuShow = imDoubleClick) then

ShowMenu();

if (Assigned(FOnDblClick)) then

FOnDblClick(Self);

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.DoMouseMove(Shift: TShiftState; X:integer; Y: integer);

begin

if (Assigned(FOnMouseMove)) then

FOnMouseMove(Self, Shift, X, Y);

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.DoMouseDown(Button: TMouseButton; Shift: TShiftState;

X: integer; Y: integer);

begin

if (FAppRestore = imMouseDown) then

Restore();

if (FPopupMenuShow = imMouseDown) then

ShowMenu();

if (Assigned(FOnMouseDown)) then

FOnMouseDown(Self, Button, Shift, X, Y);

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.DoMouseUp(Button: TMouseButton; Shift: TShiftState;

X: integer; Y:integer);

begin

if (FAppRestore = imMouseDown) then

Restore();

if (FPopupMenuShow = imMouseDown) then

ShowMenu();

if (Assigned(FOnMouseUp)) then

FOnMouseUp(Self, Button, Shift, X, Y);

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.DoOnAnimate(Sender: TObject);

begin

if (IconIndex < FIconList.Count) then

Inc(FIconIndex)

else

FIconIndex := 0;

SetIconIndex(FIconIndex);

Update();

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.Minimize();

begin

Application.Minimize();

ShowWindow(Application.Handle, SW_HIDE);

if (Assigned(FOnMinimize)) then

FOnMinimize(Self);

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.Restore();

begin

Application.Restore();

ShowWindow(Application.Handle, SW_RESTORE);

SetForegroundWindow(Application.Handle);

if (Assigned(FOnRestore)) then

FOnRestore(Self);

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.Update();

begin

if not (csDesigning in ComponentState) then

begin

FData.hIcon := FIcon.Handle;

if (Visible = true) then

Shell_NotifyIcon(NIM_MODIFY, @FData);

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.SetIconIndex(Value: integer);

begin

FIconIndex := Value;

if (Assigned(FIconList)) then

FIconList.GetIcon(FIconIndex, FIcon);

Update();

end;

//---------------------------------------------------------------------------

function TTrayIcon.ApplicationHookProc(var Message: TMessage): Boolean;

begin

if (Message.Msg = WM_SYSCOMMAND) then

begin

if (Message.WParam = SC_MINIMIZE) then

Minimize();

if (Message.WParam = SC_RESTORE) then

Restore();

end;

Result:= false;

end;

//---------------------------------------------------------------------------

procedure TTrayIcon.SetDefaultIcon();

begin

FIcon.Assign(Application.Icon);

Update();

end;

//---------------------------------------------------------------------------

function TTrayIcon.GetHandle(): HWND;

begin

Result := FData.Wnd;

end;

//---------------------------------------------------------------------------

end.