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System Tray Icons - Minimize Your Application to the SysTray

, 6 Nov 2000
Minimize your application to system tray instead of the taskbar
trayicons_demo.zip
TrayIcons_demo
res
MyTray.ico
MyTray.dsp
MyTray.dsw
Release
MyTray.exe
trayicons_src.zip
// MyTrayDlg.cpp : implementation file
//

#include "stdafx.h"
#include "MyTray.h"
#include "MyTrayDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CTrayDialog
{
public:
	CAboutDlg();

// Dialog Data
	//{{AFX_DATA(CAboutDlg)
	enum { IDD = IDD_ABOUTBOX };
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CAboutDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	//{{AFX_MSG(CAboutDlg)
	//}}AFX_MSG
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CTrayDialog(CAboutDlg::IDD)
{
	//{{AFX_DATA_INIT(CAboutDlg)
	//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CTrayDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAboutDlg)
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CTrayDialog)
	//{{AFX_MSG_MAP(CAboutDlg)
		// No message handlers
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyTrayDlg dialog

CMyTrayDlg::CMyTrayDlg(CWnd* pParent /*=NULL*/)
	: CTrayDialog(CMyTrayDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CMyTrayDlg)
		// 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);
}

void CMyTrayDlg::DoDataExchange(CDataExchange* pDX)
{
	CTrayDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CMyTrayDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CMyTrayDlg, CTrayDialog)
	//{{AFX_MSG_MAP(CMyTrayDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_COMMAND(ID_TRAYMENU_ITEM1, OnTraymenuItem1)
	ON_COMMAND(ID_TRAYMENU_ITEM2, OnTraymenuItem2)
	ON_COMMAND(ID_TRAYMENU_ITEM3, OnTraymenuItem3)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyTrayDlg message handlers

BOOL CMyTrayDlg::OnInitDialog()
{
	CTrayDialog::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon
	
	TraySetIcon(IDR_MAINFRAME);
	TraySetToolTip("ToolTip for tray icon");
	TraySetMenu(IDR_MENU1);
	
	// Uncomment theese lines if you don't want to minimize to tray, and
	// have the tray icon displayed all the time

	// TraySetMinimizeToTray(FALSE);
	// TrayShow();
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CMyTrayDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CTrayDialog::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CMyTrayDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CTrayDialog::OnPaint();
	}
}

// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CMyTrayDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CMyTrayDlg::OnTraymenuItem1() 
{
	AfxMessageBox("Item 1 Clicked !");
}

void CMyTrayDlg::OnTraymenuItem2() 
{
	AfxMessageBox("Item 2 Clicked !");
}

void CMyTrayDlg::OnTraymenuItem3() 
{
	AfxMessageBox("Item 3 Clicked !");
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

About the Author

Daniel Zilcsak
Software Developer
United States United States
No Biography provided

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