/*******************************************************************************
File: SysTrayIcon.cpp
Description: This file contains the module for creating and manipulating
a Sys tray icon
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Compiler with version number : Visual C++ 6.0/7.0 (.NET)
********************************************************************************/
#include "StdAfx.h"
#include "SysTrayIcon.h"
//------------------------------------------------------------------------------
// Message map for CSysTrayWnd
//------------------------------------------------------------------------------
BEGIN_MESSAGE_MAP(CSysTrayWnd, CWnd)
ON_MESSAGE(WM_SYSTRAYMSG, OnSysTrayMsg)
END_MESSAGE_MAP()
/*-----------------------------------------------------------------------------
Function : CSysTrayWnd::CSysTrayWnd()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Default constructor
Parameters : none
Return Value : none
----------------------------------------------------------------------------*/
CSysTrayWnd::CSysTrayWnd()
{
m_pstiSysTrayIcon = NULL;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayWnd::CSysTrayWnd()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Default destructor
Parameters : none
Return Value : none
----------------------------------------------------------------------------*/
CSysTrayWnd::~CSysTrayWnd()
{
}
/*-----------------------------------------------------------------------------
Function : CSysTrayWnd::OnSysTrayMsg()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : The icon in the system sends the WM_SYSTRAYMSG to this window.
WM_SYSTRAYMSG is mapped to this function via the message map.
Parameters : System calls and sends the wParam and lParam to this function
1. wParam -> Icon ID
2. lParam -> The message sent to the icon
Return Value : LRESULT
----------------------------------------------------------------------------*/
LRESULT CSysTrayWnd::OnSysTrayMsg(WPARAM wParam, LPARAM lParam)
{
// wParam gives the ICON ID on which the mouse had made some movement.
// lParam is the mouse message
CPoint ptMouse = GetMouseScreenPt();
switch (lParam)
{
case WM_RBUTTONDOWN:
m_pstiSysTrayIcon->OnRButtonDown(wParam, ptMouse);
break;
case WM_LBUTTONDOWN:
m_pstiSysTrayIcon->OnLButtonDown(wParam, ptMouse);
break;
case WM_MBUTTONDOWN:
m_pstiSysTrayIcon->OnMButtonDown(wParam, ptMouse);
break;
case WM_RBUTTONDBLCLK:
m_pstiSysTrayIcon->OnRButtonDblClk(wParam, ptMouse);
break;
case WM_LBUTTONDBLCLK:
m_pstiSysTrayIcon->OnLButtonDblClk(wParam, ptMouse);
break;
case WM_MBUTTONDBLCLK:
m_pstiSysTrayIcon->OnMButtonDblClk(wParam, ptMouse);
break;
case WM_MBUTTONUP:
m_pstiSysTrayIcon->OnMButtonUp(wParam, ptMouse);
break;
case WM_RBUTTONUP:
m_pstiSysTrayIcon->OnRButtonUp(wParam, ptMouse);
break;
case WM_LBUTTONUP:
m_pstiSysTrayIcon->OnLButtonUp(wParam, ptMouse);
break;
case WM_MOUSEMOVE:
m_pstiSysTrayIcon->OnMouseMove(wParam, ptMouse);
break;
default:
break;
}
return 0;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayWnd::CreateWnd()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Creates the hidden helper window, which will receive messages for
the tray icon
Parameters :
Return Value : BOOL (TRUE, if the helper window is created, else FALSE)
----------------------------------------------------------------------------*/
BOOL CSysTrayWnd::CreateWnd(CSysTrayIcon* pstiSysTrayIcon, LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, int x, int y, int nWidth, int nHeight, HWND hWndParent, HMENU nIDorHMenu, LPVOID lpParam)
{
ASSERT(pstiSysTrayIcon != NULL);
BOOL bWndCreated = FALSE;
if (pstiSysTrayIcon == NULL)
{
return bWndCreated;
}
PCSTR pstrOwnerClass = ::AfxRegisterWndClass(0);
bWndCreated = CWnd::CreateEx(
0,
pstrOwnerClass,
_T(""),
WS_POPUP,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
0
);
m_pstiSysTrayIcon = pstiSysTrayIcon;
return bWndCreated;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayWnd::GetMouseScreenPt()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Gets the screen co-ordinates where the mouse is on the icon.
Parameters : void
Return Value : CPoint -> Point where the mouse is on the icon
----------------------------------------------------------------------------*/
CPoint CSysTrayWnd::GetMouseScreenPt()
{
CPoint ptMouse(0, 0);
::GetCursorPos(&ptMouse);
return ptMouse;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::CSysTrayIcon()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Default constructor
Parameters : none
Return Value : none
----------------------------------------------------------------------------*/
CSysTrayIcon::CSysTrayIcon()
{
CreateTheSysTrayMsgReceiverWnd();
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::~CSysTrayIcon()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Destructor
Parameters : none
Return Value : none
----------------------------------------------------------------------------*/
CSysTrayIcon::~CSysTrayIcon(void)
{
POSITION pos = m_NotifyIconDataList.GetHeadPosition();
NOTIFYICONDATA* pnifInconInfo = NULL;
while (m_NotifyIconDataList.IsEmpty() == FALSE)
{
pnifInconInfo = m_NotifyIconDataList.GetNext(pos);
DeleteIcon(pnifInconInfo->uID);
}
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::Create()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Same functionality as 2nd constructor, if you wish to construct blank
object and intialize it later
Parameters :
1. hIcon -> Handle to an icon
2. nIconID -> An unique ID for the tray icon if you intend to use
more than one tray icon
3. szTip -> The tool tip that will be shown when mouse is over the icon
with the ID nIconID
Return Value : BOOL (TRUE, if the icon could be created, else FALSE)
----------------------------------------------------------------------------*/
BOOL CSysTrayIcon::CreateIcon(HICON hIcon, UINT nIconID, PCSTR szTip)
{
BOOL bIconCreated = FALSE;
bIconCreated = CheckIfIconIDExists(nIconID);
// Icon should not be created as an icon with this ID already exists!!
ASSERT(bIconCreated == FALSE);
if (bIconCreated == FALSE)
{
NOTIFYICONDATA* pnidIconInfo = new NOTIFYICONDATA;
if (pnidIconInfo != NULL)
{
::memset(pnidIconInfo, 0, sizeof(NOTIFYICONDATA));
ASSERT(hIcon != NULL);
ASSERT(::strcmp(szTip, _T("")) != 0); // Sure that icon tip == "" ??
if (hIcon != NULL)
{
pnidIconInfo->hIcon = hIcon;
pnidIconInfo->hWnd = m_wndTrayMsgReceiver.GetSafeHwnd();
pnidIconInfo->uCallbackMessage = WM_SYSTRAYMSG;
pnidIconInfo->uID = nIconID;
pnidIconInfo->cbSize = sizeof(NOTIFYICONDATA);
pnidIconInfo->uFlags = 0;
::strcpy(pnidIconInfo->szTip, szTip); // Copy the string
// Add the icon information to the list
m_NotifyIconDataList.AddTail(pnidIconInfo);
bIconCreated = TRUE;
return bIconCreated;
}
}
}
else
{
return FALSE;
}
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::ShowBalloon()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Shows a ballon tip over the tray icon
Parameters :
1. szBallonTitle -> Message title
2. szBalloonMsg -> Balloon message
3. nTimeOut -> Time to show the balloon, min 10 secs.
4. dwIcon -> ICON_WARNING or ICON_ERROR or ICON_INFO
Return Value : BOOL
----------------------------------------------------------------------------*/
BOOL CSysTrayIcon::ShowBalloon(UINT nIconID, PTSTR szBalloonTitle, PTSTR szBalloonMsg, DWORD dwIcon, UINT nTimeOut)
{
// First check if Icon exits
ASSERT(szBalloonTitle != NULL); // Are you sure ballon message title == NULL??
ASSERT(szBalloonMsg != NULL); // Are you sure ballon message == NULL??
VERIFY((nTimeOut *= 1000) >= 10000); // in Windows 2000 nTimeout is 10 seconds,
// If even set less no point, so a check
// just in case.
ASSERT(::strcmp(szBalloonTitle, _T("")) != 0); // Sure that balloon title == "" ??
ASSERT(::strcmp(szBalloonMsg, _T("")) != 0); // Sure that balloon message == "" ?
ASSERT (dwIcon == NIIF_WARNING || dwIcon == NIIF_ERROR || dwIcon == NIIF_INFO || dwIcon == NIIF_NONE);
BOOL bBalloonShown = FALSE;
NOTIFYICONDATA* pnidIconInfo = GetNotifyIconDataFromID(nIconID);
if (pnidIconInfo != NULL)
{
pnidIconInfo->dwInfoFlags = dwIcon;
}
else
{
return bBalloonShown; // We could not get the NOTIFYICONDATA
}
// Set the flags for showing balloon, espcially NIF_INFO
pnidIconInfo->uFlags |= NIF_INFO;
// Set the time out for the balloon
pnidIconInfo->uTimeout = nTimeOut;
// Set the balloon title
::strcpy(pnidIconInfo->szInfoTitle, szBalloonTitle);
// Set balloon message
::strcpy(pnidIconInfo->szInfo, szBalloonMsg);
// Show balloon....
bBalloonShown = ::Shell_NotifyIcon(NIM_MODIFY, pnidIconInfo);
return bBalloonShown;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::ShowIcon()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Shows a tray icon
Parameters :
1. hIcon -> Handle of icon
2. szTip -> Tool tip of tray icon
Return Value : BOOL
----------------------------------------------------------------------------*/
BOOL CSysTrayIcon::ShowIcon(UINT nIconID)
{
BOOL bIconShown = FALSE;
NOTIFYICONDATA* pnidIconInfo = GetNotifyIconDataFromID(nIconID);
if (pnidIconInfo != NULL)
{
// Use NIM_ADD if the icon has never been shown, else use the flag NIM_MODIFY
// The NOTIFYICONDATA.uFlags signifies that the icon in the system tray is
// not visible.
if (pnidIconInfo->uFlags == 0)
{
pnidIconInfo->uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
bIconShown = ::Shell_NotifyIcon(NIM_ADD, pnidIconInfo);
}
else
{
pnidIconInfo->uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
bIconShown = ::Shell_NotifyIcon(NIM_MODIFY, pnidIconInfo);
}
}
return bIconShown;
}
BOOL CSysTrayIcon::CreateTheSysTrayMsgReceiverWnd()
{
PCSTR pstrOwnerClass = ::AfxRegisterWndClass(0);
BOOL bHelperWndCreated = FALSE;
bHelperWndCreated = m_wndTrayMsgReceiver.CreateWnd(
this,
pstrOwnerClass,
_T(""),
WS_POPUP,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,
0
);
return bHelperWndCreated;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::HideIcon()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Hides an icon from the system tray. Does not delete it from
memory
Parameters : The icon ID
Return Value : BOOL (TRUE if the icon is hidden, else FALSE)
----------------------------------------------------------------------------*/
BOOL CSysTrayIcon::HideIcon(UINT nIconID)
{
BOOL bIconHidden = FALSE;
NOTIFYICONDATA* pnidIconInfo = GetNotifyIconDataFromID(nIconID);
if (pnidIconInfo != NULL)
{
// The NOTIFYICONDATA.uFlags signifies that the icon in the system tray is
// not visible.
pnidIconInfo->uFlags = 0;
bIconHidden = ::Shell_NotifyIcon(NIM_DELETE, pnidIconInfo);
}
return bIconHidden;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::DeleteIcon()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Hides an icon from the system tray. Also deletes it from
memory
Parameters : The icon ID
Return Value : BOOL (TRUE if the icon is hidden & deleted , else FALSE)
----------------------------------------------------------------------------*/
BOOL CSysTrayIcon::DeleteIcon(UINT nIconID)
{
BOOL bIconHidden = FALSE;
NOTIFYICONDATA* pnidIconInfo = GetNotifyIconDataFromID(nIconID);
if (pnidIconInfo != NULL)
{
// The NOTIFYICONDATA.uFlags signifies that the icon in the system tray is
// not visible.
pnidIconInfo->uFlags = 0;
bIconHidden = ::Shell_NotifyIcon(NIM_DELETE, pnidIconInfo);
DeleteNotifyIconDataFromList(pnidIconInfo);
}
return bIconHidden;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::GetNotifyIconDataFromID()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Gets the associated NOTIFYICONDATA struct from the icon ID
Parameters : The icon ID
Return Value : NOTIFYICONDATA* (NOTIFYICONDATA pointer, if available,
else NULL)
----------------------------------------------------------------------------*/
NOTIFYICONDATA* CSysTrayIcon::GetNotifyIconDataFromID(int nIconID)
{
POSITION pos = m_NotifyIconDataList.GetHeadPosition();
NOTIFYICONDATA* pnidIconInfo = NULL;
while (pos != NULL)
{
pnidIconInfo = m_NotifyIconDataList.GetNext(pos);
if (pnidIconInfo->uID == nIconID)
{
return pnidIconInfo; // We found the rqeuired NOTIFYICONDATA
}
}
return NULL;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::DeleteNotifyIconDataFromList()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Deletes the icon and it's NOTIFYICONDATA struct from linked list
m_NotifyIconDataList
Parameters : The icon ID
Return Value : BOOL (TRUE if possible to delete the icon with the struct
passed as the parameter, else FALSE)
----------------------------------------------------------------------------*/
BOOL CSysTrayIcon::DeleteNotifyIconDataFromList(NOTIFYICONDATA* pnidIconInfoToBeDeleted)
{
BOOL bIconInfoDeleted = FALSE;
POSITION pos = m_NotifyIconDataList.GetHeadPosition();
NOTIFYICONDATA* pnidIconInfo = NULL;
while (pos != NULL)
{
// We did not use m_NotifyIconDataList.GetNext() because, in the case
// we enter the 'if' case below, the RemoveAt() will point to the next
// element rather than the element we want to delete.
pnidIconInfo = m_NotifyIconDataList.GetAt(pos);
if (pnidIconInfo == pnidIconInfoToBeDeleted)
{
m_NotifyIconDataList.RemoveAt(pos);
delete pnidIconInfo;
bIconInfoDeleted = TRUE;
break; // We found the NOTIFYICONDATA to be deleted
}
// Move to the next element
m_NotifyIconDataList.GetNext(pos);
}
return bIconInfoDeleted;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::CheckIfIconIDExists()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Checks if an icon with the requested ID exists
Parameters : The icon ID
Return Value : BOOL (TRUE if icon with this ID exists in the linked list
m_NotifyIconDataList, else FALSE)
----------------------------------------------------------------------------*/
BOOL CSysTrayIcon::CheckIfIconIDExists(UINT nIconID)
{
BOOL bIconIDExists = FALSE;
POSITION pos = m_NotifyIconDataList.GetHeadPosition();
while (pos != NULL)
{
NOTIFYICONDATA* pnidIconInfo = m_NotifyIconDataList.GetNext(pos);
if (pnidIconInfo->uID == nIconID)
{
bIconIDExists = TRUE;
break;
}
}
return bIconIDExists;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::OnLButtonDown()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Called by the window m_wndTrayMsgReceiver when the user clicks
and icon with the left mouse button
Parameters : 1. nIconID -> The icon ID
2. ptMouse -> screen co-ordinates of the mouse
Return Value : void
----------------------------------------------------------------------------*/
void CSysTrayIcon::OnLButtonDown(UINT nIconID, CPoint ptMouse)
{
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::OnRButtonDown()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Called by the window m_wndTrayMsgReceiver when the user clicks
and icon with the right mouse button
Parameters : 1. nIconID -> The icon ID
2. ptMouse -> screen co-ordinates of the mouse
Return Value : void
----------------------------------------------------------------------------*/
void CSysTrayIcon::OnRButtonDown(UINT nIconID, CPoint ptMouse)
{
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::OnMButtonDown()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Called by the window m_wndTrayMsgReceiver when the user clicks
and icon with the right mouse button
Parameters : 1. nIconID -> The icon ID
2. ptMouse -> screen co-ordinates of the mouse
Return Value : void
----------------------------------------------------------------------------*/
void CSysTrayIcon::OnMButtonDown(UINT nIconID, CPoint ptMouse)
{
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::OnLButtonUp()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Called by the window m_wndTrayMsgReceiver when the user releases
the left mouse button over the icon
Parameters : 1. nIconID -> The icon ID
2. ptMouse -> screen co-ordinates of the mouse
Return Value : void
----------------------------------------------------------------------------*/
void CSysTrayIcon::OnLButtonUp(UINT nIconID, CPoint ptMouse)
{
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::OnRButtonUp()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Called by the window m_wndTrayMsgReceiver when the user releases
the right mouse button over the icon
Parameters : 1. nIconID -> The icon ID
2. ptMouse -> screen co-ordinates of the mouse
Return Value : void
----------------------------------------------------------------------------*/
void CSysTrayIcon::OnRButtonUp(UINT nIconID, CPoint ptMouse)
{
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::OnMButtonUp()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Called by the window m_wndTrayMsgReceiver when the user releases
the middle mouse button over the icon
Parameters : 1. nIconID -> The icon ID
2. ptMouse -> screen co-ordinates of the mouse
Return Value : void
----------------------------------------------------------------------------*/
void CSysTrayIcon::OnMButtonUp(UINT nIconID, CPoint ptMouse)
{
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::OnLButtonDblClk()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Called by the window m_wndTrayMsgReceiver when the user double
clicks the left mouse button over the icon
Parameters : 1. nIconID -> The icon ID
2. ptMouse -> screen co-ordinates of the mouse
Return Value : void
----------------------------------------------------------------------------*/
void CSysTrayIcon::OnLButtonDblClk(UINT nIconID, CPoint ptMouse)
{
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::OnRButtonDblClk()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Called by the window m_wndTrayMsgReceiver when the user double
clicks the right mouse button over the icon
Parameters : 1. nIconID -> The icon ID
2. ptMouse -> screen co-ordinates of the mouse
Return Value : void
----------------------------------------------------------------------------*/
void CSysTrayIcon::OnRButtonDblClk(UINT nIconID, CPoint ptMouse)
{
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::OnMButtonDblClk()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Called by the window m_wndTrayMsgReceiver when the user double
clicks the middle mouse button over the icon
Parameters : 1. nIconID -> The icon ID
2. ptMouse -> screen co-ordinates of the mouse
Return Value : void
----------------------------------------------------------------------------*/
void CSysTrayIcon::OnMButtonDblClk(UINT nIconID, CPoint ptMouse)
{
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::OnLButtonDblClk()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Called by the window m_wndTrayMsgReceiver when the user moves the
mouse over the icon.
Parameters : 1. nIconID -> The icon ID
2. ptMouse -> screen co-ordinates of the mouse
Return Value : void
----------------------------------------------------------------------------*/
void CSysTrayIcon::OnMouseMove(UINT nIconID, CPoint ptMouse)
{
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::OnContextMenu()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Called to initialize a menu over the icon, and set the foreground
window for proper message routing.
Parameters : 1. CMenu* -> Pointer to the menu
2. ptMouse -> screen co-ordinates of the mouse
3. pWndMessageHandler -> Window that will handle the message
Return Value : void
----------------------------------------------------------------------------*/
BOOL CSysTrayIcon::OnContextMenu(CMenu* pContextMenu, CPoint ptMouse, CWnd* pWndMessageHandler)
{
// The window is brought forward, so that it starts
// receving messages, rather than currently active window.
// If we don't do this the messages of the context menu will
// go to the currently active window.
pWndMessageHandler->SetForegroundWindow();
BOOL bResult = pContextMenu->TrackPopupMenu(
TPM_LEFTALIGN | TPM_RIGHTBUTTON,
ptMouse.x,
ptMouse.y,
pWndMessageHandler
);
return bResult;
}
/*-----------------------------------------------------------------------------
Function : CSysTrayIcon::ChangeIconTip()
Created: Dec 5, 2002
Author: Prateek Kaul
e-mail: kaulpr@yahoo.com
Abstract : Changes the tool tip of the icon
Parameters : 1. nIconID -> ID of the icon whose tool tip to be changed
2. strTip -> New tip of the icon
Return Value : void
----------------------------------------------------------------------------*/
BOOL CSysTrayIcon::ChangeIconTip(UINT nIconID, CString strTip)
{
BOOL bIconTipChanged = FALSE;
TCHAR* szTip = strTip.GetBuffer(0);
ASSERT(::strcmp(szTip, _T("")) != 0); // Sure that icon tip == "" ??
NOTIFYICONDATA* pnidIconInfo = GetNotifyIconDataFromID(nIconID);
if (pnidIconInfo != NULL)
{
::strcpy(pnidIconInfo->szTip, szTip); // Copy the new string containing the tip
pnidIconInfo->cbSize = sizeof(NOTIFYICONDATA);
pnidIconInfo->uFlags |= NIF_TIP;
bIconTipChanged = ::Shell_NotifyIcon(NIM_MODIFY, pnidIconInfo);
}
return bIconTipChanged;
}
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