[WinApi] Aplikacja niewidoczna na pasku zadań

Janusz_Power · 2010-04-18T00:48:17+02:00

Witam. Mam pytanie. Jak można ukryć aplikacje na pasku zadań i ewentualnie sprawić, żeby była widoczna jej ikonka obok zegara (coś takiego jak gadu gadu program główny)? Pozdrawiam.

Witam

dolaczasz do aplikacji

#include "SystemTray.h"

const char* kpcTrayNotificationMsg_ = "Tray notification";

//TwojSoftDlg.h - dodajesz zmienne "protected"

	void OnSysCommand(UINT nID, LPARAM lParam);
	void SetupTaskbarButton();
	void SetupTrayIcon();

	CSystemTray* pTrayIcon_;
	int nTrayNotificationMsg_;
	bool bMinimized_;

modyfikujesz

// CTwojSoftDlg dialog

CTwojSoftDlg::CTwojSoftDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTwojSoftDlg::IDD, pParent),
	bMinimized_(false),
	pTrayIcon_(0),
	nTrayNotificationMsg_(RegisterWindowMessage(kpcTrayNotificationMsg_))
{
	//{{AFX_DATA_INIT(CTwojSoftDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

dodajesz funkcje

void CTwojSoftDlg::SetupTrayIcon()
{
	if (bMinimized_ && (pTrayIcon_ == 0)) 
	{
		pTrayIcon_ = new CSystemTray;
		pTrayIcon_->Create (0, nTrayNotificationMsg_, "Twoj Soft",
							m_hIcon, NULL);
	}
	else 
	{
		delete pTrayIcon_;
		pTrayIcon_ = 0;
	}
}

void CTwojSoftDlg::SetupTaskbarButton()
{
	if (bMinimized_)
	{
		ShowWindow(SW_HIDE);
	}
	else
	{
		ShowWindow(SW_SHOW);
	}
}


void CTwojSoftDlg::OnSysCommand(UINT nID, LPARAM lParam)
{	
	bool bOldMin = bMinimized_;

	if (nID == SC_MINIMIZE)
	{
		bMinimized_ = true;
	}
	else if (nID == SC_RESTORE)
	{		
		bMinimized_ = false;
	}

	if(nID == SC_CLOSE)
	{
		bMinimized_ ^= true;
		goto skipClose;
	}

	CDialog::OnSysCommand(nID, lParam);

skipClose:;

	if (bOldMin != bMinimized_) {
		// Minimize state changed.  Create the systray icon and do 
		// custom taskbar button handling.
		SetupTrayIcon();
		SetupTaskbarButton();
	}
}

i na zakonczenie dodajesz do aplikacji dwa pliki

/////////////////////////////////////////////////////////////////////////////
// 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

IMPLEMENT_DYNAMIC(CSystemTray, CWnd)

UINT CSystemTray::m_nIDEvent = 4567;

/////////////////////////////////////////////////////////////////////////////
// CSystemTray construction/creation/destruction

CSystemTray::CSystemTray()
{
    Initialise();
}

CSystemTray::CSystemTray(CWnd* pParent, UINT uCallbackMessage, LPCTSTR szToolTip, 
                         HICON icon, UINT uID)
{
    Initialise();
    Create(pParent, uCallbackMessage, szToolTip, icon, uID);
}

void CSystemTray::Initialise()
{
    memset(&m_tnd, 0, sizeof(m_tnd));
    m_bEnabled   = FALSE;
    m_bHidden    = FALSE;
    m_uIDTimer   = 0;
    m_hSavedIcon = NULL;
    m_DefaultMenuItemID = 0;
    m_DefaultMenuItemByPos = TRUE;
}

BOOL CSystemTray::Create(CWnd* pParent, UINT uCallbackMessage, LPCTSTR szToolTip, 
                         HICON icon, UINT uID)
{
    // this is only for Windows 95 (or higher)
    VERIFY(m_bEnabled = ( GetVersion() & 0xff ) >= 4);
    if (!m_bEnabled) return FALSE;

    // Make sure Notification window is valid (not needed - CJM)
    // VERIFY(m_bEnabled = (pParent && ::IsWindow(pParent->GetSafeHwnd())));
    // if (!m_bEnabled) return FALSE;
    
    // Make sure we avoid conflict with other messages
    ASSERT(uCallbackMessage >= WM_USER);

    // Tray only supports tooltip text up to 64 characters
    ASSERT(_tcslen(szToolTip) <= 64);

    // Create an invisible window
    CWnd::CreateEx(0, AfxRegisterWndClass(0), _T(""), WS_POPUP, 0,0,10,10, 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;
    _tcscpy(m_tnd.szTip, szToolTip);

    // Set the tray icon
    VERIFY(m_bEnabled = Shell_NotifyIcon(NIM_ADD, &m_tnd));
    return m_bEnabled;
}

CSystemTray::~CSystemTray()
{
    RemoveIcon();
    m_IconList.RemoveAll();
    DestroyWindow();
}

/////////////////////////////////////////////////////////////////////////////
// CSystemTray icon manipulation

void CSystemTray::MoveToRight()
{
    HideIcon();
    ShowIcon();
}

void CSystemTray::RemoveIcon()
{
    if (!m_bEnabled) return;

    m_tnd.uFlags = 0;
    Shell_NotifyIcon(NIM_DELETE, &m_tnd);
    m_bEnabled = FALSE;
}

void CSystemTray::HideIcon()
{
    if (m_bEnabled && !m_bHidden) {
        m_tnd.uFlags = NIF_ICON;
        Shell_NotifyIcon (NIM_DELETE, &m_tnd);
        m_bHidden = TRUE;
    }
}

void CSystemTray::ShowIcon()
{
    if (m_bEnabled && m_bHidden) {
        m_tnd.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
        Shell_NotifyIcon(NIM_ADD, &m_tnd);
        m_bHidden = FALSE;
    }
}

BOOL CSystemTray::SetIcon(HICON hIcon)
{
    if (!m_bEnabled) return FALSE;

    m_tnd.uFlags = NIF_ICON;
    m_tnd.hIcon = hIcon;

    return Shell_NotifyIcon(NIM_MODIFY, &m_tnd);
}

BOOL CSystemTray::SetIcon(LPCTSTR lpszIconName)
{
    HICON hIcon = AfxGetApp()->LoadIcon(lpszIconName);

    return SetIcon(hIcon);
}

BOOL CSystemTray::SetIcon(UINT nIDResource)
{
    HICON hIcon = AfxGetApp()->LoadIcon(nIDResource);

    return SetIcon(hIcon);
}

BOOL CSystemTray::SetStandardIcon(LPCTSTR lpIconName)
{
    HICON hIcon = LoadIcon(NULL, lpIconName);

    return SetIcon(hIcon);
}

BOOL CSystemTray::SetStandardIcon(UINT nIDResource)
{
    HICON hIcon = LoadIcon(NULL, MAKEINTRESOURCE(nIDResource));

    return SetIcon(hIcon);
}
 
HICON CSystemTray::GetIcon() const
{
    return (m_bEnabled)? m_tnd.hIcon : NULL;
}

BOOL CSystemTray::SetIconList(UINT uFirstIconID, UINT uLastIconID) 
{
	if (uFirstIconID > uLastIconID)
        return FALSE;

	UINT uIconArraySize = uLastIconID - uFirstIconID + 1;
	const CWinApp * pApp = AfxGetApp();
    ASSERT(pApp != 0);

    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;
    }

    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;
    }

    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_nIDEvent, 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)
{
    if (!m_bEnabled) return FALSE;

    m_tnd.uFlags = NIF_TIP;
    _tcscpy(m_tnd.szTip, pszTip);

    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 notification window stuff

BOOL CSystemTray::SetNotificationWnd(CWnd* pWnd)
{
    if (!m_bEnabled) return FALSE;

    // Make sure Notification window is valid
    ASSERT(pWnd && ::IsWindow(pWnd->GetSafeHwnd()));

    m_tnd.hWnd = pWnd->GetSafeHwnd();
    m_tnd.uFlags = 0;

    return Shell_NotifyIcon(NIM_MODIFY, &m_tnd);
}

CWnd* CSystemTray::GetNotificationWnd() const
{
    return CWnd::FromHandle(m_tnd.hWnd);
}

/////////////////////////////////////////////////////////////////////////////
// CSystemTray menu manipulation

BOOL CSystemTray::SetMenuDefaultItem(UINT uItem, BOOL bByPos)
{
    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;
    if (!(pSubMenu = menu.GetSubMenu(0))) return FALSE;

    ::SetMenuDefaultItem(pSubMenu->m_hMenu, m_DefaultMenuItemID, m_DefaultMenuItemByPos);

    return TRUE;
}

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
END_MESSAGE_MAP()

void CSystemTray::OnTimer(UINT nIDEvent) 
{
    ASSERT(nIDEvent == m_nIDEvent);

    COleDateTime CurrentTime = COleDateTime::GetCurrentTime();
    COleDateTimeSpan period = CurrentTime - m_StartTime;
    if (m_nAnimationPeriod > 0 && m_nAnimationPeriod < period.GetTotalSeconds())
    {
        StopAnimation();
        return;
    }

    StepAnimation();
}

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* pTarget = AfxGetMainWnd();

    // Clicking with right button brings up a context menu
    if (LOWORD(lParam) == WM_RBUTTONUP)
    {    
        if (!menu.LoadMenu(m_tnd.uID)) return 0;
        if (!(pSubMenu = menu.GetSubMenu(0))) return 0;

        // Make chosen menu item the default (bold font)
        ::SetMenuDefaultItem(pSubMenu->m_hMenu, m_DefaultMenuItemID, m_DefaultMenuItemByPos);

        // Display and track the popup menu
        CPoint pos;
        GetCursorPos(&pos);

        pTarget->SetForegroundWindow();  
        ::TrackPopupMenu(pSubMenu->m_hMenu, 0, pos.x, pos.y, 0, 
                         pTarget->GetSafeHwnd(), NULL);

        // BUGFIX: See "PRB: Menus for Notification Icons Don't Work Correctly"
        pTarget->PostMessage(WM_NULL, 0, 0);

        menu.DestroyMenu();
    } 
    else if (LOWORD(lParam) == WM_LBUTTONDBLCLK) 
    {
        // double click received, the default action is to execute default menu item
        pTarget->SetForegroundWindow();  

        UINT uItem;
        if (m_DefaultMenuItemByPos)
        {
            if (!menu.LoadMenu(m_tnd.uID)) return 0;
            if (!(pSubMenu = menu.GetSubMenu(0))) return 0;
            uItem = pSubMenu->GetMenuItemID(m_DefaultMenuItemID);
        }
        else
            uItem = m_DefaultMenuItemID;
        
        pTarget->SendMessage(WM_COMMAND, uItem, 0);

        menu.DestroyMenu();
    }

    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);
}
<cpp>


i ostatni

<cpp>
/////////////////////////////////////////////////////////////////////////////
// SystemTray.h : header file

#ifndef _INCLUDED_SYSTEMTRAY_H_
#define _INCLUDED_SYSTEMTRAY_H_

#include <afxtempl.h>

/////////////////////////////////////////////////////////////////////////////
// CSystemTray window

class CSystemTray : public CWnd
{
// Construction/destruction
public:
    CSystemTray();
    CSystemTray(CWnd* pWnd, UINT uCallbackMessage, LPCTSTR szTip, HICON icon, UINT uID);
    virtual ~CSystemTray();

    DECLARE_DYNAMIC(CSystemTray)

// Operations
public:
    BOOL Enabled() { return m_bEnabled; }
    BOOL Visible() { return !m_bHidden; }

    // Create the tray icon
    Create(CWnd* pParent, UINT uCallbackMessage, LPCTSTR szTip, HICON icon, UINT uID);

    // Change or retrieve the Tooltip text
    BOOL    SetTooltipText(LPCTSTR pszTooltipText);
    BOOL    SetTooltipText(UINT nID);
    CString GetTooltipText() const;

    // Change or retrieve the icon displayed
    BOOL  SetIcon(HICON hIcon);
    BOOL  SetIcon(LPCTSTR lpszIconName);
    BOOL  SetIcon(UINT nIDResource);
    BOOL  SetStandardIcon(LPCTSTR lpIconName);
    BOOL  SetStandardIcon(UINT nIDResource);
    HICON GetIcon() const;
    void  HideIcon();
    void  ShowIcon();
    void  RemoveIcon();
    void  MoveToRight();

    // For icon animation
    BOOL  SetIconList(UINT uFirstIconID, UINT uLastIconID); 
    BOOL  SetIconList(HICON* pHIconList, UINT nNumIcons); 
    BOOL  Animate(UINT nDelayMilliSeconds, int nNumSeconds = -1);
    BOOL  StepAnimation();
    BOOL  StopAnimation();

    // Change menu default item
    void GetMenuDefaultItem(UINT& uItem, BOOL& bByPos);
    BOOL SetMenuDefaultItem(UINT uItem, BOOL bByPos);

    // Change or retrieve the window to send notification messages to
    BOOL  SetNotificationWnd(CWnd* pNotifyWnd);
    CWnd* GetNotificationWnd() const;

    // Default handler for tray notification message
    virtual LRESULT OnTrayNotification(WPARAM uID, LPARAM lEvent);

// Overrides
    // ClassWizard generated virtual function overrides
    //{{AFX_VIRTUAL(CSystemTray)
	protected:
	virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam);
	//}}AFX_VIRTUAL

// Implementation
protected:
    void Initialise();

    BOOL            m_bEnabled;   // does O/S support tray icon?
    BOOL            m_bHidden;    // Has the icon been hidden?
    NOTIFYICONDATA  m_tnd;

    CArray<HICON, HICON> m_IconList;
    static UINT  m_nIDEvent;
    UINT         m_uIDTimer;
    int          m_nCurrentIcon;
    COleDateTime m_StartTime;
    int          m_nAnimationPeriod;
    HICON        m_hSavedIcon;
    UINT         m_DefaultMenuItemID;
    BOOL         m_DefaultMenuItemByPos;

// Generated message map functions
protected:
	//{{AFX_MSG(CSystemTray)
	afx_msg void OnTimer(UINT nIDEvent);
	//}}AFX_MSG

    DECLARE_MESSAGE_MAP()
};


#endif
/////////////////////////////////////////////////////////////////////////////

wywołanie robisz w taki sposób:

minimalizacja do 'traya'

		bMinimized_ = true;
		SetupTrayIcon();
		SetupTaskbarButton()

przywrócenie

		bMinimized_ = false;
		SetupTrayIcon();
		SetupTaskbarButton()

możesz wywołac z InitDialog lub recznie lub timerem... jak chcesz gdzies tam jeszcze podajesz ID ikony ktora będzie w trayu...

Mam nadzieję że się przyda :)
Pozdrawiam
</cpp></cpp>

[WinApi] Aplikacja niewidoczna na pasku zadań

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