Tray Me!

// Tray Me !Dlg.cpp : implementation file
//

#include "stdafx.h"
#include "Tray Me !.h"
#include "Tray Me !Dlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif

typedef void (*UnTrayAll)();
typedef void (*GetMinimizedWinodwList)(TCHAR szParam[ARRAY_SIZE][100]);
typedef bool (*UnTrayMe)(TCHAR *szTitile);

// CAboutDlg dialog used for App About

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

// Dialog Data
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

// Implementation
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{ 
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CTrayMeDlg dialog




CTrayMeDlg::CTrayMeDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTrayMeDlg::IDD, pParent)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTrayMeDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CTrayMeDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_REGISTERED_MESSAGE(WM_TRAY_ICON_NOTIFY_MESSAGE,OnTrayNotify)
	//}}AFX_MSG_MAP
	ON_WM_CLOSE()
	ON_WM_DESTROY()
END_MESSAGE_MAP()


// CTrayMeDlg message handlers

BOOL CTrayMeDlg::OnInitDialog()
{
	CDialog::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

	// TODO: Add extra initialization here
	
	//Add a Tray Notification Icon for the application.
	NOTIFYICONDATA niData;
	niData.cbSize = sizeof(NOTIFYICONDATA);
	niData.hWnd = m_hWnd;
	niData.uID = 1;
	niData.uCallbackMessage = WM_TRAY_ICON_NOTIFY_MESSAGE;
	niData.hIcon = m_hIcon;
	niData.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
	wcscpy_s(niData.szTip,127,_T("Tray Me !"));

	Shell_NotifyIcon(NIM_ADD,&niData);

	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CTrayMeDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::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 CTrayMeDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<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
	{
		CDialog::OnPaint();
	}
}

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


void CTrayMeDlg::OnClose()
{
	// TODO: Add your message handler code here and/or call default
	CDialog::OnClose();
	PostQuitMessage(0);
}

LRESULT CTrayMeDlg::OnTrayNotify(WPARAM wParam,LPARAM lParam)
{
	UINT uMsg = (UINT) lParam;
	//Handle the tray notification messages here.

	//Entertain only Right click event.
	if(WM_RBUTTONDOWN == uMsg || WM_CONTEXTMENU == uMsg)
	{
		//Build a context menu with minimised application captios as menu items and pop it up.
		CPoint pt;
		GetCursorPos(&pt);

		HMODULE hModule = LoadLibrary(_T("Event Hooker Dll.dll"));
		
		if(NULL == hModule)
			MessageBox(_T("Failed to Load Hooker Dll."),_T("Hooking Dlg"),0);
		
		GetMinimizedWinodwList fpGetMinimizedWinodwList = (GetMinimizedWinodwList) GetProcAddress(hModule,"GetMinimizedWinodwList");
		
		if(NULL == fpGetMinimizedWinodwList)
			MessageBox(_T("Failed to Get Function pointer from Hooker Dll."),_T("Hooking Dlg"),0);

		//Retrive the list of caption of the minimized windows
		TCHAR szWindowCaptions[ARRAY_SIZE][100] = {0};
		fpGetMinimizedWinodwList(szWindowCaptions);
		
		HMENU hContextMenu = CreatePopupMenu();
		HMENU hSubMenu = CreatePopupMenu();

		int iMinimizedAppCount = 0;

		//Add the list items into the context menu.
		for(iMinimizedAppCount = 0;iMinimizedAppCount < 1024; iMinimizedAppCount++, OutputDebugString(_T("\n")))
		{
			if(wcslen(szWindowCaptions[iMinimizedAppCount]))
			{
				::AppendMenu(hSubMenu,MF_STRING,MENUID_APPNAMES + iMinimizedAppCount ,szWindowCaptions[iMinimizedAppCount]);
				OutputDebugString(szWindowCaptions[iMinimizedAppCount]);
			}
			else
				break;
		}

		long lMenuProperties = MF_STRING ;

		if(0 == iMinimizedAppCount)
			lMenuProperties |= MF_GRAYED;
		
		::AppendMenu(hContextMenu,lMenuProperties | MF_POPUP,(UINT_PTR) hSubMenu ,_T("UnTray"));
		::AppendMenu(hContextMenu,lMenuProperties,MENUID_UNTRAY_ALL,_T("UnTray All"));
		::AppendMenu(hContextMenu,MF_SEPARATOR,MENUID_SEPARATOR,_T("Tray Me Separator"));
		::AppendMenu(hContextMenu,MF_STRING, MENUID_ABOUT_DLG,_T("About Tray Me !"));
		::AppendMenu(hContextMenu,MF_SEPARATOR,MENUID_SEPARATOR,_T("Tray Me Separator"));
		::AppendMenu(hContextMenu,MF_STRING, MENUID_EXIT,_T("Exit"));
		
		SetForegroundWindow();
		//Popup the context menu.
		BOOL iSelectedIndex = TrackPopupMenu(hContextMenu,TPM_LEFTALIGN | TPM_HORPOSANIMATION | TPM_RETURNCMD | TPM_LEFTBUTTON, pt.x,pt.y,0,m_hWnd,NULL);
		//PostMessage(WM_NULL,NULL,NULL);

		//Perform the user selected task.
		switch(iSelectedIndex)
		{
			case MENUID_EXIT:
				//Exit the application.
				PostQuitMessage(0);
				break;
			case MENUID_UNTRAY_ALL:
				{
					//Untray all the applications.
					UnTrayAll fpUnTrayAll = (UnTrayAll) GetProcAddress(hModule,"UnTrayAll");
					
					if(NULL == fpUnTrayAll)
						MessageBox(_T("Failed to Load Hooker Dll."),_T("Hooking Dlg"),0);

					fpUnTrayAll();
				}
				break;
			case MENUID_ABOUT_DLG:
				{
					//Show about dlg.
					CAboutDlg dlgAbout;
					dlgAbout.DoModal();
				}
				break;
			default :
				if(iSelectedIndex >= MENUID_APPNAMES)
				{
					//Untray the selected application only.
					UnTrayMe fpUnTrayMe = (UnTrayMe) GetProcAddress(hModule,"UnTrayMe");
					
					if(NULL == fpUnTrayMe)
						MessageBox(_T("Failed to Get Function pointer from Hooker Dll."),_T("Hooking Dlg"),0);

					OutputDebugString(szWindowCaptions[iSelectedIndex - MENUID_APPNAMES]);
					fpUnTrayMe(szWindowCaptions[iSelectedIndex - MENUID_APPNAMES]);
				}
				break;
		}
	}

	return LRESULT();
}

void CTrayMeDlg::OnDestroy()
{
	CDialog::OnDestroy();

	// TODO: Add your message handler code here

	//Delete the tray icon while exiting the application.
	NOTIFYICONDATA niData;
	niData.cbSize = sizeof(NOTIFYICONDATA);
	niData.hWnd = m_hWnd;
	niData.uID = 1;

	Shell_NotifyIcon(NIM_DELETE,&niData);
}