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System Tray Icons - Minimize Your Application to the SysTray

, 6 Nov 2000 CPOL
Minimize your application to system tray instead of the taskbar
// 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)

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About the Author

Daniel Zilcsak
Software Developer
United States United States
No Biography provided

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