www.pudn.com > NetDefender2.rar > SystemTray.cpp
/////////////////////////////////////////////////////////////////////////////
// SystemTray.cpp : implementation file
//
/////////////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "SystemTray.h"
#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_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
}
/////////////////////////////////////////////////////////////////////////////
// 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('\0');
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('\0');
}
#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 | LR_SHARED);
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('\0');
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('\0');
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)
LRESULT CSystemTray::OnTaskbarCreated(WPARAM /*wParam*/, LPARAM /*lParam*/)
{
InstallIconPending();
return 0L;
}
#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
{
// double click received, the default action is to execute default menu item
pTargetWnd->SetForegroundWindow();
UINT uItem;
if (m_DefaultMenuItemByPos)
{
if (!menu.LoadMenu(m_tnd.uID))
return 0;
pSubMenu = menu.GetSubMenu(0);
if (!pSubMenu)
return 0;
uItem = pSubMenu->GetMenuItemID(m_DefaultMenuItemID);
menu.DestroyMenu();
}
else
uItem = m_DefaultMenuItemID;
pTargetWnd->SendMessage(WM_COMMAND, uItem, 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);
// if clock is above system tray adjust accordingly
if (rectClock.bottom < pRect->bottom-5) // 10 = random fudge factor.
pRect->top = rectClock.bottom;
else
pRect->right = rectClock.left;
return FALSE;
}
return TRUE;
}
#ifndef _WIN32_WCE
// enhanced version by Matthew Ellis
void CSystemTray::GetTrayWndRect(LPRECT lprect)
{
#define DEFAULT_RECT_WIDTH 150
#define DEFAULT_RECT_HEIGHT 30
HWND hShellTrayWnd = ::FindWindow(_T("Shell_TrayWnd"), NULL);
if (hShellTrayWnd)
{
::GetWindowRect(hShellTrayWnd, lprect);
EnumChildWindows(hShellTrayWnd, FindTrayWnd, (LPARAM)lprect);
return;
}
// OK, we failed to get the rect from the quick hack. Either explorer isn't
// running or it's a new version of the shell with the window class names
// changed (how dare Microsoft change these undocumented class names!) So, we
// try to find out what side of the screen the taskbar is connected to. We
// know that the system tray is either on the right or the bottom of the
// taskbar, so we can make a good guess at where to minimize to
APPBARDATA appBarData;
appBarData.cbSize=sizeof(appBarData);
if (SHAppBarMessage(ABM_GETTASKBARPOS,&appBarData))
{
// We know the edge the taskbar is connected to, so guess the rect of the
// system tray. Use various fudge factor to make it look good
switch(appBarData.uEdge)
{
case ABE_LEFT:
case ABE_RIGHT:
// We want to minimize to the bottom of the taskbar
lprect->top = appBarData.rc.bottom-100;
lprect->bottom = appBarData.rc.bottom-16;
lprect->left = appBarData.rc.left;
lprect->right = appBarData.rc.right;
break;
case ABE_TOP:
case ABE_BOTTOM:
// We want to minimize to the right of the taskbar
lprect->top = appBarData.rc.top;
lprect->bottom = appBarData.rc.bottom;
lprect->left = appBarData.rc.right-100;
lprect->right = appBarData.rc.right-16;
break;
}
return;
}
// It's possible that a third party shell
// is running instead of explorer. This shell might provide support for the
// system tray, by providing a Shell_TrayWnd window (which receives the
// messages for the icons) So, look for a Shell_TrayWnd window and work out
// the rect from that. Remember that explorer's taskbar is the Shell_TrayWnd,
// and stretches either the width or the height of the screen. We can't rely
// on the 3rd party shell's Shell_TrayWnd doing the same, in fact, we can't
// rely on it being any size. The best we can do is just blindly use the
// window rect, perhaps limiting the width and height to, say 150 square.
// Note that if the 3rd party shell supports the same configuraion as
// explorer (the icons hosted in NotifyTrayWnd, which is a child window of
// Shell_TrayWnd), we would already have caught it above
if (hShellTrayWnd)
{
::GetWindowRect(hShellTrayWnd, lprect);
if (lprect->right - lprect->left > DEFAULT_RECT_WIDTH)
lprect->left = lprect->right - DEFAULT_RECT_WIDTH;
if (lprect->bottom - lprect->top > DEFAULT_RECT_HEIGHT)
lprect->top = lprect->bottom - DEFAULT_RECT_HEIGHT;
return;
}
// OK. Haven't found a thing. Provide a default rect based on the current work
// area
SystemParametersInfo(SPI_GETWORKAREA,0, lprect, 0);
lprect->left = lprect->right - DEFAULT_RECT_WIDTH;
lprect->top = lprect->bottom - DEFAULT_RECT_HEIGHT;
}
// Check to see if the animation has been disabled (Matthew Ellis )
BOOL CSystemTray::GetDoWndAnimation()
{
ANIMATIONINFO ai;
ai.cbSize=sizeof(ai);
SystemParametersInfo(SPI_GETANIMATION,sizeof(ai),&ai,0);
return ai.iMinAnimate?TRUE:FALSE;
}
#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
if (GetDoWndAnimation())
{
CRect rectFrom, rectTo;
pWnd->GetWindowRect(rectFrom);
GetTrayWndRect(rectTo);
::DrawAnimatedRects(pWnd->m_hWnd, IDANI_CAPTION, rectFrom, rectTo);
}
RemoveTaskbarIcon(pWnd);
pWnd->ModifyStyle(WS_VISIBLE, 0);
#endif
}
void CSystemTray::MaximiseFromTray(CWnd* pWnd)
{
#ifndef _WIN32_WCE
if (GetDoWndAnimation())
{
CRect rectTo;
pWnd->GetWindowRect(rectTo);
CRect rectFrom;
GetTrayWndRect(rectFrom);
pWnd->SetParent(NULL);
::DrawAnimatedRects(pWnd->m_hWnd, IDANI_CAPTION, rectFrom, rectTo);
}
else
pWnd->SetParent(NULL);
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
}