Delphi刷新托盘，去掉非正常退出的程序的托盘图标

procedure RemoveDeadIcons2;
var
  wnd : cardinal;
  rec : TRect;
  w,h : integer;
  x,y : integer;
begin
  // find a handle of a tray
  wnd := FindWindow('Shell_TrayWnd', nil);
  wnd := FindWindowEx(wnd, 0, 'TrayNotifyWnd', nil);
  wnd := FindWindowEx(wnd, 0, 'SysPager', nil);
  wnd := FindWindowEx(wnd, 0, 'ToolbarWindow32', nil);
  // get client rectangle (needed for width and height of tray)
  windows.GetClientRect(wnd, rec);
  // get size of small icons
  w := GetSystemMetrics(sm_cxsmicon);
  h := GetSystemMetrics(sm_cysmicon);
  // initial y position of mouse - half of height of icon
  y := w shr 1;
  while y < rec.Bottom do
  begin // while y < height of tray
    x := h shr 1; // initial x position of mouse - half of width of icon
    while x < rec.Right do
    begin // while x < width of tray
      SendMessage(wnd, wm_mousemove, 0, y shl 16 or x); // simulate moving mouse over an icon
      x := x + w; // add width of icon to x position
    end;
    y := y + h; // add height of icon to y position
  end;
end;