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copied!<p>Shell_NotifyIcon uses IUserNotification under the hood. I played around with it and made a <a href="http://www.paralint.com/projects/notifu">utility out of it</a>. I heard of a visually impaired sysadmin who uses it to make his scripts screen reader compatible. It is command line, it does not have a message loop. </p> <p>It is self aware, meaning that notifications sent to it will be queued (you have control over it). For that to work, I provided a IQueryContinue implementation. The project is in C++ and is open source, help yourself. </p> <p>Here is the guts of it :</p> <pre><code> HRESULT NotifyUser(const NOTIFU_PARAM& params, IQueryContinue *querycontinue, IUserNotificationCallback *notifcallback) { HRESULT result = E_FAIL; IUserNotification *un = 0; IUserNotification2 *deux = 0; //French pun : "un" above stands for UserNotification but it also means 1 in French. deux means 2. //First try with the Vista/Windows 7 interface //(unless /xp flag is specified if (!params.mForceXP) result = CoCreateInstance(CLSID_UserNotification, 0, CLSCTX_ALL, IID_IUserNotification2, (void**)&deux); //Fall back to Windows XP if (!SUCCEEDED(result)) { TRACE(eWARN, L"Using Windows XP interface IUserNotification\n"); result = CoCreateInstance(CLSID_UserNotification, 0, CLSCTX_ALL, IID_IUserNotification, (void**)&un); } else { TRACE(eINFO, L"Using Vista interface IUserNotification2\n"); un = (IUserNotification*)deux; //Rather ugly cast saves some code... } if (SUCCEEDED(result)) { const std::basic_string<TCHAR> crlf_text(L"\\n"); const std::basic_string<TCHAR> crlf(L"\n"); std::basic_string<TCHAR> text(params.mText); size_t look = 0; size_t found; //Replace \n with actual CRLF pair while ((found = text.find(crlf_text, look)) != std::string::npos) { text.replace(found, crlf_text.size(), crlf); look = found+1; } result = un->SetIconInfo(params.mIcon, params.mTitle.c_str()); result = un->SetBalloonInfo(params.mTitle.c_str(), text.c_str(), params.mType); //Looks like it controls what happends when the X button is //clicked on result = un->SetBalloonRetry(0, 250, 0); if (deux) result = deux->Show(querycontinue, 250, notifcallback); else result = un->Show(querycontinue, 250); un->Release(); } return result; } </code></pre>

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