SystemTray.cpp
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上传日期:2007-01-08
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- /////////////////////////////////////////////////////////////////////////////
- // SystemTray.cpp : implementation file
- //
- // MFC VERSION
- //
- // This is a conglomeration of ideas from the MSJ "Webster" application,
- // sniffing round the online docs, and from other implementations such
- // as PJ Naughter's "CTrayNotifyIcon" (http://indigo.ie/~pjn/ntray.html)
- // especially the "CSystemTray::OnTrayNotification" member function.
- // Joerg Koenig suggested the icon animation stuff
- //
- // This class is a light wrapper around the windows system tray stuff. It
- // adds an icon to the system tray with the specified ToolTip text and
- // callback notification value, which is sent back to the Parent window.
- //
- // The tray icon can be instantiated using either the constructor or by
- // declaring the object and creating (and displaying) it later on in the
- // program. eg.
- //
- // CSystemTray m_SystemTray; // Member variable of some class
- //
- // ...
- // // in some member function maybe...
- // m_SystemTray.Create(pParentWnd, WM_MY_NOTIFY, "Click here",
- // hIcon, nSystemTrayID);
- //
- // Written by Chris Maunder (cmaunder@mail.com)
- // Copyright (c) 1998.
- //
- // Updated: 25 Jul 1998 - Added icon animation, and derived class
- // from CWnd in order to handle messages. (CJM)
- // (icon animation suggested by Joerg Koenig.
- // Added API to set default menu item. Code provided
- // by Enrico Lelina.
- //
- // Updated: 6 June 1999 - SetIcon can now load non-standard sized icons (Chip Calvert)
- // Added "bHidden" parameter when creating icon
- // (Thanks to Michael Gombar for these suggestions)
- // Restricted tooltip text to 64 characters.
- //
- // Updated: 9 Nov 1999 - Now works in WindowsCE.
- // Fix for use in NT services (Thomas Mooney, TeleProc, Inc)
- // Added W2K stuff by Michael Dunn
- //
- // Updated: 1 Jan 2000 - Added tray minimisation stuff.
- //
- //
- // This code may be used in compiled form in any way you desire. This
- // file may be redistributed unmodified by any means PROVIDING it is
- // not sold for profit without the authors written consent, and
- // providing that this notice and the authors name is included. If
- // the source code in this file is used in any commercial application
- // then acknowledgement must be made to the author of this file
- // (in whatever form you wish).
- //
- // This file is provided "as is" with no expressed or implied warranty.
- // The author accepts no liability for any damage caused through use.
- //
- // Expect bugs.
- //
- // Please use and enjoy. Please let me know of any bugs/mods/improvements
- // that you have found/implemented and I will fix/incorporate them into this
- // file.
- //
- /////////////////////////////////////////////////////////////////////////////
-
- #include "stdafx.h"
- #include "SystemTray.h"
- #include "resource.h" // main symbols
- #ifdef _DEBUG
- #define new DEBUG_NEW
- #undef THIS_FILE
- static char THIS_FILE[] = __FILE__;
- #endif
- #ifndef _WIN32_WCE // Use C++ exception handling instead of structured.
- #undef TRY
- #undef CATCH
- #undef END_CATCH
- #define TRY try
- #define CATCH(ex_class, ex_object) catch(ex_class* ex_object)
- #define END_CATCH
- #endif // _WIN32_WCE
- #ifndef _countof
- #define _countof(x) ( sizeof(x) / sizeof(x[0]) )
- #endif
- IMPLEMENT_DYNAMIC(CSystemTray, CWnd)
- const UINT CSystemTray::m_nTimerID = 4567;
- UINT CSystemTray::m_nMaxTooltipLength = 64; // This may change...
- const UINT CSystemTray::m_nTaskbarCreatedMsg = ::RegisterWindowMessage(_T("TaskbarCreated"));
- CWnd CSystemTray::m_wndInvisible;
- /////////////////////////////////////////////////////////////////////////////
- // CSystemTray construction/creation/destruction
- CSystemTray::CSystemTray()
- {
- Initialise();
- }
- CSystemTray::CSystemTray(CWnd* pParent, // The window that will recieve tray notifications
- UINT uCallbackMessage, // the callback message to send to parent
- LPCTSTR szToolTip, // tray icon tooltip
- HICON icon, // Handle to icon
- UINT uID, // Identifier of tray icon
- BOOL bHidden /*=FALSE*/, // Hidden on creation?
- LPCTSTR szBalloonTip /*=NULL*/, // Ballon tip (w2k only)
- LPCTSTR szBalloonTitle /*=NULL*/, // Balloon tip title (w2k)
- DWORD dwBalloonIcon /*=NIIF_NONE*/,// Ballon tip icon (w2k)
- UINT uBalloonTimeout /*=10*/) // Balloon timeout (w2k)
- {
- Initialise();
- Create(pParent, uCallbackMessage, szToolTip, icon, uID, bHidden,
- szBalloonTip, szBalloonTitle, dwBalloonIcon, uBalloonTimeout);
- }
- void CSystemTray::Initialise()
- {
- memset(&m_tnd, 0, sizeof(m_tnd));
- m_bEnabled = FALSE;
- m_bHidden = TRUE;
- m_bRemoved = TRUE;
- m_DefaultMenuItemID = 0;
- m_DefaultMenuItemByPos = TRUE;
- m_bMenuItemSuspendEnabled = TRUE;
- m_bMenuItemGrayed = FALSE;
- m_bShowIconPending = FALSE;
- m_uIDTimer = 0;
- m_hSavedIcon = NULL;
- m_pTargetWnd = NULL;
- m_uCreationFlags = 0;
- #ifdef SYSTEMTRAY_USEW2K
- OSVERSIONINFO os = { sizeof(os) };
- GetVersionEx(&os);
- m_bWin2K = ( VER_PLATFORM_WIN32_NT == os.dwPlatformId && os.dwMajorVersion >= 5 );
- #else
- m_bWin2K = FALSE;
- #endif
- }
- // update by Michael Dunn, November 1999
- //
- // New version of Create() that handles new features in Win 2K.
- //
- // Changes:
- // szTip: Same as old, but can be 128 characters instead of 64.
- // szBalloonTip: Text for a balloon tooltip that is shown when the icon
- // is first added to the tray. Pass "" if you don't want
- // a balloon.
- // szBalloonTitle: Title text for the balloon tooltip. This text is shown
- // in bold above the szBalloonTip text. Pass "" if you
- // don't want a title.
- // dwBalloonIcon: Specifies which icon will appear in the balloon. Legal
- // values are:
- // NIIF_NONE: No icon
- // NIIF_INFO: Information
- // NIIF_WARNING: Exclamation
- // NIIF_ERROR: Critical error (red circle with X)
- // uBalloonTimeout: Number of seconds for the balloon to remain visible.
- // Must be between 10 and 30 inclusive.
- BOOL CSystemTray::Create(CWnd* pParent, UINT uCallbackMessage, LPCTSTR szToolTip,
- HICON icon, UINT uID, BOOL bHidden /*=FALSE*/,
- LPCTSTR szBalloonTip /*=NULL*/,
- LPCTSTR szBalloonTitle /*=NULL*/,
- DWORD dwBalloonIcon /*=NIIF_NONE*/,
- UINT uBalloonTimeout /*=10*/)
- {
- #ifdef _WIN32_WCE
- m_bEnabled = TRUE;
- #else
- // this is only for Windows 95 (or higher)
- m_bEnabled = (GetVersion() & 0xff) >= 4;
- if (!m_bEnabled)
- {
- ASSERT(FALSE);
- return FALSE;
- }
- #endif
- m_nMaxTooltipLength = _countof(m_tnd.szTip);
-
- // Make sure we avoid conflict with other messages
- ASSERT(uCallbackMessage >= WM_APP);
- // Tray only supports tooltip text up to m_nMaxTooltipLength) characters
- ASSERT(AfxIsValidString(szToolTip));
- ASSERT(_tcslen(szToolTip) <= m_nMaxTooltipLength);
- // Create an invisible window
- CWnd::CreateEx(0, AfxRegisterWndClass(0), _T(""), WS_POPUP, 0,0,0,0, NULL, 0);
- // load up the NOTIFYICONDATA structure
- m_tnd.cbSize = sizeof(NOTIFYICONDATA);
- m_tnd.hWnd = pParent->GetSafeHwnd()? pParent->GetSafeHwnd() : m_hWnd;
- m_tnd.uID = uID;
- m_tnd.hIcon = icon;
- m_tnd.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
- m_tnd.uCallbackMessage = uCallbackMessage;
- _tcsncpy(m_tnd.szTip, szToolTip, m_nMaxTooltipLength-1);
- #ifdef SYSTEMTRAY_USEW2K
- if (m_bWin2K && szBalloonTip)
- {
- // The balloon tooltip text can be up to 255 chars long.
- ASSERT(AfxIsValidString(szBalloonTip));
- ASSERT(lstrlen(szBalloonTip) < 256);
- // The balloon title text can be up to 63 chars long.
- if (szBalloonTitle)
- {
- ASSERT(AfxIsValidString(szBalloonTitle));
- ASSERT(lstrlen(szBalloonTitle) < 64);
- }
- // dwBalloonIcon must be valid.
- ASSERT(NIIF_NONE == dwBalloonIcon || NIIF_INFO == dwBalloonIcon ||
- NIIF_WARNING == dwBalloonIcon || NIIF_ERROR == dwBalloonIcon);
- // The timeout must be between 10 and 30 seconds.
- ASSERT(uBalloonTimeout >= 10 && uBalloonTimeout <= 30);
- m_tnd.uFlags |= NIF_INFO;
- _tcsncpy(m_tnd.szInfo, szBalloonTip, 255);
- if (szBalloonTitle)
- _tcsncpy(m_tnd.szInfoTitle, szBalloonTitle, 63);
- else
- m_tnd.szInfoTitle[0] = _T(' ');
- m_tnd.uTimeout = uBalloonTimeout * 1000; // convert time to ms
- m_tnd.dwInfoFlags = dwBalloonIcon;
- }
- #endif
- m_bHidden = bHidden;
- #ifdef SYSTEMTRAY_USEW2K
- if (m_bWin2K && m_bHidden)
- {
- m_tnd.uFlags = NIF_STATE;
- m_tnd.dwState = NIS_HIDDEN;
- m_tnd.dwStateMask = NIS_HIDDEN;
- }
- #endif
- m_uCreationFlags = m_tnd.uFlags; // Store in case we need to recreate in OnTaskBarCreate
- BOOL bResult = TRUE;
- if (!m_bHidden || m_bWin2K)
- {
- bResult = Shell_NotifyIcon(NIM_ADD, &m_tnd);
- m_bShowIconPending = m_bHidden = m_bRemoved = !bResult;
- }
-
- #ifdef SYSTEMTRAY_USEW2K
- if (m_bWin2K && szBalloonTip)
- {
- // Zero out the balloon text string so that later operations won't redisplay
- // the balloon.
- m_tnd.szInfo[0] = _T(' ');
- }
- #endif
- return bResult;
- }
- CSystemTray::~CSystemTray()
- {
- RemoveIcon();
- m_IconList.RemoveAll();
- DestroyWindow();
- }
- /////////////////////////////////////////////////////////////////////////////
- // CSystemTray icon manipulation
- //////////////////////////////////////////////////////////////////////////
- //
- // Function: SetFocus()
- //
- // Description:
- // Sets the focus to the tray icon. Microsoft's Win 2K UI guidelines
- // say you should do this after the user dismisses the icon's context
- // menu.
- //
- // Input:
- // Nothing.
- //
- // Returns:
- // Nothing.
- //
- //////////////////////////////////////////////////////////////////////////
- // Added by Michael Dunn, November, 1999
- //////////////////////////////////////////////////////////////////////////
- void CSystemTray::SetFocus()
- {
- #ifdef SYSTEMTRAY_USEW2K
- Shell_NotifyIcon ( NIM_SETFOCUS, &m_tnd );
- #endif
- }
- BOOL CSystemTray::MoveToRight()
- {
- RemoveIcon();
- return AddIcon();
- }
- BOOL CSystemTray::AddIcon()
- {
- if (!m_bRemoved)
- RemoveIcon();
- if (m_bEnabled)
- {
- m_tnd.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
- if (!Shell_NotifyIcon(NIM_ADD, &m_tnd))
- m_bShowIconPending = TRUE;
- else
- m_bRemoved = m_bHidden = FALSE;
- }
- return (m_bRemoved == FALSE);
- }
- BOOL CSystemTray::RemoveIcon()
- {
- m_bShowIconPending = FALSE;
- if (!m_bEnabled || m_bRemoved)
- return TRUE;
- m_tnd.uFlags = 0;
- if (Shell_NotifyIcon(NIM_DELETE, &m_tnd))
- m_bRemoved = m_bHidden = TRUE;
- return (m_bRemoved == TRUE);
- }
- BOOL CSystemTray::HideIcon()
- {
- if (!m_bEnabled || m_bRemoved || m_bHidden)
- return TRUE;
- #ifdef SYSTEMTRAY_USEW2K
- if (m_bWin2K)
- {
- m_tnd.uFlags = NIF_STATE;
- m_tnd.dwState = NIS_HIDDEN;
- m_tnd.dwStateMask = NIS_HIDDEN;
- m_bHidden = Shell_NotifyIcon( NIM_MODIFY, &m_tnd);
- }
- else
- #endif
- RemoveIcon();
- return (m_bHidden == TRUE);
- }
- BOOL CSystemTray::ShowIcon()
- {
- if (m_bRemoved)
- return AddIcon();
- if (!m_bHidden)
- return TRUE;
- #ifdef SYSTEMTRAY_USEW2K
- if (m_bWin2K)
- {
- m_tnd.uFlags = NIF_STATE;
- m_tnd.dwState = 0;
- m_tnd.dwStateMask = NIS_HIDDEN;
- Shell_NotifyIcon ( NIM_MODIFY, &m_tnd );
- }
- else
- #endif
- AddIcon();
- return (m_bHidden == FALSE);
- }
- BOOL CSystemTray::SetIcon(HICON hIcon)
- {
- if (!m_bEnabled)
- return FALSE;
- m_tnd.uFlags = NIF_ICON;
- m_tnd.hIcon = hIcon;
- if (m_bHidden)
- return TRUE;
- else
- return Shell_NotifyIcon(NIM_MODIFY, &m_tnd);
- }
- BOOL CSystemTray::SetIcon(LPCTSTR lpszIconName)
- {
- HICON hIcon = (HICON) ::LoadImage(AfxGetResourceHandle(),
- lpszIconName,
- IMAGE_ICON,
- 0, 0,
- LR_DEFAULTCOLOR);
- return SetIcon(hIcon);
- }
- BOOL CSystemTray::SetIcon(UINT nIDResource)
- {
- return SetIcon(MAKEINTRESOURCE(nIDResource));
- }
- BOOL CSystemTray::SetStandardIcon(LPCTSTR lpIconName)
- {
- HICON hIcon = LoadIcon(NULL, lpIconName);
- return SetIcon(hIcon);
- }
- BOOL CSystemTray::SetStandardIcon(UINT nIDResource)
- {
- return SetStandardIcon(MAKEINTRESOURCE(nIDResource));
- }
-
- HICON CSystemTray::GetIcon() const
- {
- return (m_bEnabled)? m_tnd.hIcon : NULL;
- }
- BOOL CSystemTray::SetIconList(UINT uFirstIconID, UINT uLastIconID)
- {
- if (uFirstIconID > uLastIconID)
- return FALSE;
- const CWinApp* pApp = AfxGetApp();
- if (!pApp)
- {
- ASSERT(FALSE);
- return FALSE;
- }
- m_IconList.RemoveAll();
- TRY {
- for (UINT i = uFirstIconID; i <= uLastIconID; i++)
- m_IconList.Add(pApp->LoadIcon(i));
- }
- CATCH(CMemoryException, e)
- {
- e->ReportError();
- e->Delete();
- m_IconList.RemoveAll();
- return FALSE;
- }
- END_CATCH
- return TRUE;
- }
- BOOL CSystemTray::SetIconList(HICON* pHIconList, UINT nNumIcons)
- {
- m_IconList.RemoveAll();
- TRY {
- for (UINT i = 0; i <= nNumIcons; i++)
- m_IconList.Add(pHIconList[i]);
- }
- CATCH (CMemoryException, e)
- {
- e->ReportError();
- e->Delete();
- m_IconList.RemoveAll();
- return FALSE;
- }
- END_CATCH
- return TRUE;
- }
- BOOL CSystemTray::Animate(UINT nDelayMilliSeconds, int nNumSeconds /*=-1*/)
- {
- StopAnimation();
- m_nCurrentIcon = 0;
- m_StartTime = COleDateTime::GetCurrentTime();
- m_nAnimationPeriod = nNumSeconds;
- m_hSavedIcon = GetIcon();
- // Setup a timer for the animation
- m_uIDTimer = SetTimer(m_nTimerID, nDelayMilliSeconds, NULL);
- return (m_uIDTimer != 0);
- }
- BOOL CSystemTray::StepAnimation()
- {
- if (!m_IconList.GetSize())
- return FALSE;
- m_nCurrentIcon++;
- if (m_nCurrentIcon >= m_IconList.GetSize())
- m_nCurrentIcon = 0;
- return SetIcon(m_IconList[m_nCurrentIcon]);
- }
- BOOL CSystemTray::StopAnimation()
- {
- BOOL bResult = FALSE;
- if (m_uIDTimer)
- bResult = KillTimer(m_uIDTimer);
- m_uIDTimer = 0;
- if (m_hSavedIcon)
- SetIcon(m_hSavedIcon);
- m_hSavedIcon = NULL;
- return bResult;
- }
- /////////////////////////////////////////////////////////////////////////////
- // CSystemTray tooltip text manipulation
- BOOL CSystemTray::SetTooltipText(LPCTSTR pszTip)
- {
- ASSERT(AfxIsValidString(pszTip)); // (md)
- ASSERT(_tcslen(pszTip) < m_nMaxTooltipLength);
- if (!m_bEnabled)
- return FALSE;
- m_tnd.uFlags = NIF_TIP;
- _tcsncpy(m_tnd.szTip, pszTip, m_nMaxTooltipLength-1);
- if (m_bHidden)
- return TRUE;
- else
- return Shell_NotifyIcon(NIM_MODIFY, &m_tnd);
- }
- BOOL CSystemTray::SetTooltipText(UINT nID)
- {
- CString strText;
- VERIFY(strText.LoadString(nID));
- return SetTooltipText(strText);
- }
- CString CSystemTray::GetTooltipText() const
- {
- CString strText;
- if (m_bEnabled)
- strText = m_tnd.szTip;
- return strText;
- }
- /////////////////////////////////////////////////////////////////////////////
- // CSystemTray support for Win 2K features.
- //////////////////////////////////////////////////////////////////////////
- //
- // Function: ShowBalloon
- //
- // Description:
- // Shows a balloon tooltip over the tray icon.
- //
- // Input:
- // szText: [in] Text for the balloon tooltip.
- // szTitle: [in] Title for the balloon. This text is shown in bold above
- // the tooltip text (szText). Pass "" if you don't want a title.
- // dwIcon: [in] Specifies an icon to appear in the balloon. Legal values are:
- // NIIF_NONE: No icon
- // NIIF_INFO: Information
- // NIIF_WARNING: Exclamation
- // NIIF_ERROR: Critical error (red circle with X)
- // uTimeout: [in] Number of seconds for the balloon to remain visible. Can
- // be between 10 and 30 inclusive.
- //
- // Returns:
- // TRUE if successful, FALSE if not.
- //
- //////////////////////////////////////////////////////////////////////////
- // Added by Michael Dunn, November 1999
- //////////////////////////////////////////////////////////////////////////
- BOOL CSystemTray::ShowBalloon(LPCTSTR szText,
- LPCTSTR szTitle /*=NULL*/,
- DWORD dwIcon /*=NIIF_NONE*/,
- UINT uTimeout /*=10*/ )
- {
- #ifndef SYSTEMTRAY_USEW2K
- return FALSE;
- #else
- // Bail out if we're not on Win 2K.
- if (!m_bWin2K)
- return FALSE;
- // Verify input parameters.
- // The balloon tooltip text can be up to 255 chars long.
- ASSERT(AfxIsValidString(szText));
- ASSERT(lstrlen(szText) < 256);
- // The balloon title text can be up to 63 chars long.
- if (szTitle)
- {
- ASSERT(AfxIsValidString( szTitle));
- ASSERT(lstrlen(szTitle) < 64);
- }
- // dwBalloonIcon must be valid.
- ASSERT(NIIF_NONE == dwIcon || NIIF_INFO == dwIcon ||
- NIIF_WARNING == dwIcon || NIIF_ERROR == dwIcon);
- // The timeout must be between 10 and 30 seconds.
- ASSERT(uTimeout >= 10 && uTimeout <= 30);
- m_tnd.uFlags = NIF_INFO;
- _tcsncpy(m_tnd.szInfo, szText, 256);
- if (szTitle)
- _tcsncpy(m_tnd.szInfoTitle, szTitle, 64);
- else
- m_tnd.szInfoTitle[0] = _T(' ');
- m_tnd.dwInfoFlags = dwIcon;
- m_tnd.uTimeout = uTimeout * 1000; // convert time to ms
- BOOL bSuccess = Shell_NotifyIcon (NIM_MODIFY, &m_tnd);
- // Zero out the balloon text string so that later operations won't redisplay
- // the balloon.
- m_tnd.szInfo[0] = _T(' ');
- return bSuccess;
- #endif
- }
- /////////////////////////////////////////////////////////////////////////////
- // CSystemTray notification window stuff
- BOOL CSystemTray::SetNotificationWnd(CWnd* pWnd)
- {
- if (!m_bEnabled)
- return FALSE;
- // Make sure Notification window is valid
- if (!pWnd || !::IsWindow(pWnd->GetSafeHwnd()))
- {
- ASSERT(FALSE);
- return FALSE;
- }
- m_tnd.hWnd = pWnd->GetSafeHwnd();
- m_tnd.uFlags = 0;
- if (m_bHidden)
- return TRUE;
- else
- return Shell_NotifyIcon(NIM_MODIFY, &m_tnd);
- }
- CWnd* CSystemTray::GetNotificationWnd() const
- {
- return CWnd::FromHandle(m_tnd.hWnd);
- }
- // Hatr added
- // Hatr added
- // Change or retrive the window to send menu commands to
- BOOL CSystemTray::SetTargetWnd(CWnd* pTargetWnd)
- {
- m_pTargetWnd = pTargetWnd;
- return TRUE;
- } // CSystemTray::SetTargetWnd()
- CWnd* CSystemTray::GetTargetWnd() const
- {
- if (m_pTargetWnd)
- return m_pTargetWnd;
- else
- return AfxGetMainWnd();
- } // CSystemTray::GetTargetWnd()
- /////////////////////////////////////////////////////////////////////////////
- // CSystemTray notification message stuff
- BOOL CSystemTray::SetCallbackMessage(UINT uCallbackMessage)
- {
- if (!m_bEnabled)
- return FALSE;
- // Make sure we avoid conflict with other messages
- ASSERT(uCallbackMessage >= WM_APP);
- m_tnd.uCallbackMessage = uCallbackMessage;
- m_tnd.uFlags = NIF_MESSAGE;
- if (m_bHidden)
- return TRUE;
- else
- return Shell_NotifyIcon(NIM_MODIFY, &m_tnd);
- }
- UINT CSystemTray::GetCallbackMessage() const
- {
- return m_tnd.uCallbackMessage;
- }
- /////////////////////////////////////////////////////////////////////////////
- // CSystemTray menu manipulation
- BOOL CSystemTray::SetMenuDefaultItem(UINT uItem, BOOL bByPos)
- {
- #ifdef _WIN32_WCE
- return FALSE;
- #else
- if ((m_DefaultMenuItemID == uItem) && (m_DefaultMenuItemByPos == bByPos))
- return TRUE;
- m_DefaultMenuItemID = uItem;
- m_DefaultMenuItemByPos = bByPos;
- CMenu menu, *pSubMenu;
- if (!menu.LoadMenu(m_tnd.uID))
- return FALSE;
- pSubMenu = menu.GetSubMenu(0);
- if (!pSubMenu)
- return FALSE;
- ::SetMenuDefaultItem(pSubMenu->m_hMenu, m_DefaultMenuItemID, m_DefaultMenuItemByPos);
- return TRUE;
- #endif
- }
- void CSystemTray::GetMenuDefaultItem(UINT& uItem, BOOL& bByPos)
- {
- uItem = m_DefaultMenuItemID;
- bByPos = m_DefaultMenuItemByPos;
- }
- /////////////////////////////////////////////////////////////////////////////
- // CSystemTray message handlers
- BEGIN_MESSAGE_MAP(CSystemTray, CWnd)
- //{{AFX_MSG_MAP(CSystemTray)
- ON_WM_TIMER()
- //}}AFX_MSG_MAP
- #ifndef _WIN32_WCE
- ON_WM_SETTINGCHANGE()
- #endif
- ON_REGISTERED_MESSAGE(CSystemTray::m_nTaskbarCreatedMsg, OnTaskbarCreated)
- END_MESSAGE_MAP()
- void CSystemTray::OnTimer(UINT nIDEvent)
- {
- if (nIDEvent != m_uIDTimer)
- {
- ASSERT(FALSE);
- return;
- }
- COleDateTime CurrentTime = COleDateTime::GetCurrentTime();
- COleDateTimeSpan period = CurrentTime - m_StartTime;
- if (m_nAnimationPeriod > 0 && m_nAnimationPeriod < period.GetTotalSeconds())
- {
- StopAnimation();
- return;
- }
- StepAnimation();
- }
- // This is called whenever the taskbar is created (eg after explorer crashes
- // and restarts. Please note that the WM_TASKBARCREATED message is only passed
- // to TOP LEVEL windows (like WM_QUERYNEWPALETTE)
- void CSystemTray::OnTaskbarCreated(WPARAM /*wParam*/, LPARAM /*lParam*/)
- {
- InstallIconPending();
- }
- #ifndef _WIN32_WCE
- void CSystemTray::OnSettingChange(UINT uFlags, LPCTSTR lpszSection)
- {
- CWnd::OnSettingChange(uFlags, lpszSection);
- if (uFlags == SPI_SETWORKAREA)
- InstallIconPending();
- }
- #endif
- LRESULT CSystemTray::OnTrayNotification(UINT wParam, LONG lParam)
- {
- //Return quickly if its not for this tray icon
- if (wParam != m_tnd.uID)
- return 0L;
- CMenu menu, *pSubMenu;
- CWnd *pTargetWnd = GetTargetWnd();
- if (!pTargetWnd)
- return 0L;
- // Clicking with right button brings up a context menu
- #if defined(_WIN32_WCE) //&& _WIN32_WCE < 211
- BOOL bAltPressed = ((GetKeyState(VK_MENU) & (1 << (sizeof(SHORT)*8-1))) != 0);
- if (LOWORD(lParam) == WM_LBUTTONUP && bAltPressed)
- #else
- if (LOWORD(lParam) == WM_RBUTTONUP)
- #endif
- {
- if (!menu.LoadMenu(m_tnd.uID))
- return 0;
-
- pSubMenu = menu.GetSubMenu(0);
- if (!pSubMenu)
- return 0;
- #ifndef _WIN32_WCE
- // Make chosen menu item the default (bold font)
- ::SetMenuDefaultItem(pSubMenu->m_hMenu, m_DefaultMenuItemID, m_DefaultMenuItemByPos);
- #endif
- // Display and track the popup menu
- CPoint pos;
- #ifdef _WIN32_WCE
- pos = CPoint(GetMessagePos());
- #else
- GetCursorPos(&pos);
- #endif
- pTargetWnd->SetForegroundWindow();
-
- #ifndef _WIN32_WCE
- ::TrackPopupMenu(pSubMenu->m_hMenu, 0, pos.x, pos.y, 0,
- pTargetWnd->GetSafeHwnd(), NULL);
- #else
- pSubMenu->TrackPopupMenu(TPM_LEFTALIGN, pos.x, pos.y, pTargetWnd, NULL);
- #endif
- // BUGFIX: See "PRB: Menus for Notification Icons Don't Work Correctly"
- pTargetWnd->PostMessage(WM_NULL, 0, 0);
- menu.DestroyMenu();
- }
- #if defined(_WIN32_WCE) //&& _WIN32_WCE < 211
- if (LOWORD(lParam) == WM_LBUTTONDBLCLK && bAltPressed)
- #else
- else if (LOWORD(lParam) == WM_LBUTTONDBLCLK)
- #endif
- {
- pTargetWnd->SendMessage(WM_COMMAND, ID_APP_ABOUT, 0);
- }
- return 1;
- }
- LRESULT CSystemTray::WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
- {
- if (message == m_tnd.uCallbackMessage)
- return OnTrayNotification(wParam, lParam);
-
- return CWnd::WindowProc(message, wParam, lParam);
- }
- void CSystemTray::InstallIconPending()
- {
- // Is the icon display pending, and it's not been set as "hidden"?
- if (!m_bShowIconPending || m_bHidden)
- return;
- // Reset the flags to what was used at creation
- m_tnd.uFlags = m_uCreationFlags;
- // Try and recreate the icon
- m_bHidden = !Shell_NotifyIcon(NIM_ADD, &m_tnd);
- // If it's STILL hidden, then have another go next time...
- m_bShowIconPending = !m_bHidden;
- ASSERT(m_bHidden == FALSE);
- }
- /////////////////////////////////////////////////////////////////////////////
- // For minimising/maximising from system tray
- BOOL CALLBACK FindTrayWnd(HWND hwnd, LPARAM lParam)
- {
- TCHAR szClassName[256];
- GetClassName(hwnd, szClassName, 255);
- // Did we find the Main System Tray? If so, then get its size and keep going
- if (_tcscmp(szClassName, _T("TrayNotifyWnd")) == 0)
- {
- CRect *pRect = (CRect*) lParam;
- ::GetWindowRect(hwnd, pRect);
- return TRUE;
- }
- // Did we find the System Clock? If so, then adjust the size of the rectangle
- // we have and quit (clock will be found after the system tray)
- if (_tcscmp(szClassName, _T("TrayClockWClass")) == 0)
- {
- CRect *pRect = (CRect*) lParam;
- CRect rectClock;
- ::GetWindowRect(hwnd, rectClock);
- pRect->right = rectClock.left;
- return FALSE;
- }
-
- return TRUE;
- }
-
- #ifndef _WIN32_WCE
- CRect CSystemTray::GetTrayWndRect()
- {
- CRect rect(0,0,0,0);
- CWnd* pWnd = FindWindow(_T("Shell_TrayWnd"), NULL);
- if (pWnd)
- {
- pWnd->GetWindowRect(rect);
- EnumChildWindows(pWnd->m_hWnd, FindTrayWnd, (LPARAM)&rect);
- }
- else
- {
- int nWidth = GetSystemMetrics(SM_CXSCREEN);
- int nHeight = GetSystemMetrics(SM_CYSCREEN);
- rect.SetRect(nWidth-40, nHeight-20, nWidth, nHeight);
- }
- return rect;
- }
- #endif
- BOOL CSystemTray::RemoveTaskbarIcon(CWnd* pWnd)
- {
- LPCTSTR pstrOwnerClass = AfxRegisterWndClass(0);
- // Create static invisible window
- if (!::IsWindow(m_wndInvisible.m_hWnd))
- {
- if (!m_wndInvisible.CreateEx(0, pstrOwnerClass, _T(""), WS_POPUP,
- CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
- NULL, 0))
- return FALSE;
- }
- pWnd->SetParent(&m_wndInvisible);
- return TRUE;
- }
- void CSystemTray::MinimiseToTray(CWnd* pWnd)
- {
- #ifndef _WIN32_WCE
- CRect rectFrom, rectTo;
- pWnd->GetWindowRect(rectFrom);
- rectTo = GetTrayWndRect();
- DrawAnimatedRects(pWnd->m_hWnd, IDANI_CAPTION, rectFrom, rectTo);
- RemoveTaskbarIcon(pWnd);
- pWnd->ModifyStyle(WS_VISIBLE, 0);
- #endif
- }
- void CSystemTray::MaximiseFromTray(CWnd* pWnd)
- {
- #ifndef _WIN32_WCE
- CRect rectTo;
- pWnd->GetWindowRect(rectTo);
- CRect rectFrom;
- rectFrom = GetTrayWndRect();
- pWnd->SetParent(NULL);
- DrawAnimatedRects(pWnd->m_hWnd, IDANI_CAPTION, rectFrom, rectTo);
- pWnd->ModifyStyle(0, WS_VISIBLE);
- pWnd->RedrawWindow(NULL, NULL, RDW_UPDATENOW | RDW_ALLCHILDREN | RDW_FRAME |
- RDW_INVALIDATE | RDW_ERASE);
- // Move focus away and back again to ensure taskbar icon is recreated
- if (::IsWindow(m_wndInvisible.m_hWnd))
- m_wndInvisible.SetActiveWindow();
- pWnd->SetActiveWindow();
- pWnd->SetForegroundWindow();
- #endif
- }