Re: Displaying Service From Sys Tray

If you want to configure your service or give some inputs to it from a
dialog which will appear when you double click the icon, here is what
you may have to do:

1.Have a dialog in service for interaction and initially keep it
hidden.

2. Now use some message to get notified when you double click on the
icon in the system tray.
Set the structure NOTIFYICONDATA to use a message like:
NOTIFYICONDATA tnid;
tnid.uCallbackMessage = WM_SYSTRAYNOTIFY;
...............................
Shell_NotifyIcon(NIM_MODIFY, &tnid);
...............................

3. Now if OnSysTrayNotify() is the function in your app which handles
the above message then look for left button double click event and show
the window:
void CRxEngineDlg::OnSysTrayNotify(UINT wParam, LONG lParam)
{
    switch (lParam)
    {
        case WM_LBUTTONDBLCLK:
                                ShowWindow(SW_SHOWNORMAL);
                                SetForegroundWindow();

.............................................

.............................................
                 }
}

4. When you close the dialog you can again call ShowWindow(SW_HIDE);
This will hide the window when you close it.

Is this what you are looking for?