;
if not (csDesigning in ComponentState) then
Shell_NotifyIcon(Nim_Delete, @fData);
inherited Destroy;
end;
{ Whenever any information changes, update the system tray. }
procedure TTrayIcon.Changed;
begin
if not (csDesigning in ComponentState) then
Shell_NotifyIcon(NIM_MODIFY, @fData);
end;
{ When the Application is minimized, minimize to the system tray.}
procedure TTrayIcon.AppMinimize(Sender: TObject);
begin
Minimize
end;
{ When restoring from the system tray, restore the application. }
procedure TTrayIcon.AppRestore(Sender: TObject);
begin
Restore
end;
{
Message handler for the hidden shell notification window.
Most messages use Wm_Callback_Message as the Msg ID, with
WParam as the ID of the shell notify icon data. LParam is
a message ID for the actual message, e.g., Wm_MouseMove.
Another important message is Wm_EndSession, telling the
shell notify icon to delete itself, so Windows can shut down.
Send the usual Delphi events for the mouse messages. Also
interpolate the OnClick event when the user clicks the
left button, and popup the menu, if there is one, for
right click events.
}
procedure TTrayIcon.OnMessage(var Msg: TMessage);
{ Return the state of the shift keys. }
function ShiftState: TShiftState;
begin
Result := [];
if GetKeyState(VK_SHIFT) < 0 then
Include(Result, ssShift);
if GetKeyState(VK_CONTROL) < 0 then
Include(Result, ssCtrl);
if GetKeyState(VK_MENU) < 0 then
Include(Result, ssAlt);
end;
var
Pt: TPoint;
Shift: TShiftState;
begin
case Msg.Msg of
Wm_QueryEndSession:
Msg.Result := 1;
Wm_EndSession:
if TWmEndSession(Msg).EndSession then
EndSession;
Wm_Callback_Message:
case Msg.lParam of
WM_MOUSEMOVE:
begin
Shift := ShiftState;
GetCursorPos(Pt);
DoMouseMove(Shift, Pt.X, Pt.Y);
end;
WM_LBUTTONDOWN:
begin
Shift := ShiftState + [ssLeft];
GetCursorPos(Pt);
DoMouseDown(mbLeft, Shift, Pt.X, Pt.Y);
fClicked := True;
end;
WM_LBUTTONUP:
begin
Shift := ShiftState + [ssLeft];
GetCursorPos(Pt);
if fClicked then
begin
fClicked := False;
Click;
end;
DoMouseUp(mbLeft, Shift, Pt.X, Pt.Y);
end;
WM_LBUTTONDBLCLK:
DblClick;
WM_RBUTTONDOWN:
begin
Shift := ShiftState + [ssRight];
GetCursorPos(Pt);
DoMouseDown(mbRight, Shift, Pt.X, Pt.Y);
DoMenu;
end;
WM_RBUTTONUP:
begin
Shift := ShiftState + [ssRight];
GetCursorPos(Pt);
DoMouseUp(mbRight, Shift, Pt.X, Pt.Y);
end;
WM_RBUTTONDBLCLK:
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