如何获取通知区域图标的工具提示？

Question

我可以在通知区域中使用图标枚举应用程序(句柄,pid,路径),我可以控制图标的位置,但我无法获得工具提示.

如何枚举包含工具提示的系统托盘图标？

Answer 1

这是我在 windows xp 和 delphi 2010 上测试的方法，如果您使用的是不支持 unicode 的 delphi 版本，请确保将读取的字符串转换为 ansi

uses CommCtrl;

function TForm1.GetIconsCount: Integer;
begin
  Result := SendMessage(FindTrayToolbar, TB_BUTTONCOUNT, 0, 0);
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
    ListTips;
end;

function TForm1.FindTrayToolbar: HWND;
begin
  Result := FindWindow('Shell_TrayWND', nil);
  Result := FindWindowEx(Result, 0, 'TrayNotifyWnd', nil);
  Result := FindWindowEx(Result, 0, 'SysPager', nil);
  Result := FindWindowEx(Result, 0, 'ToolbarWindow32', nil);
end;

procedure TForm1.ListTips;
var
  dwTray: DWORD;
  wndTray: HWND;
  hTray: THandle;
  remoteTray: Pointer;
  tdata: TTBBUTTON;
  i: Integer;
  btsread:DWORD;
  str:Pchar;
begin
  wndTray := FindTrayToolbar;
  GetWindowThreadProcessId(wndTray, @dwTray);
  hTray := OpenProcess(PROCESS_ALL_ACCESS, false, dwTray);
  if hTray <> 0 then
  begin
   remoteTray := VirtualAllocEx(hTray, nil, Sizeof(tdata), MEM_COMMIT,
      PAGE_READWRITE);
    for i := 0 to GetIconsCount - 1 do
    begin
      SendMessage(FindTrayToolbar,TB_GETBUTTON,wparam(i),lparam(remotetray));
      ReadProcessMemory(hTray,remotetray,@tdata,sizeof(tdata),btsread);
      GetMem(str,255);
      ReadProcessMemory(hTray,Ptr(tdata.iString),str,255,btsread);
      ListBox1.Items.Add(str);
      end;
       end
        else ShowMessage('Could not locate tray icons');
    end;
    end.