VC++实现小托盘的处理

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// 实验一Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "实验一.h"
#include "实验一Dlg.h"
//添加的头文件
#include "shlwapi.h"
#define WM_NOTIFYICON   WM_USER+1
//
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
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() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMyDlg dialog
CMyDlg::CMyDlg(CWnd* pParent /*=NULL*/)
: CDialog(CMyDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CMyDlg)
// 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 CMyDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CMyDlg)
// NOTE: the ClassWizard will add DDX and DDV calls here
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CMyDlg, CDialog)
//{{AFX_MSG_MAP(CMyDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
ON_MESSAGE(WM_NOTIFYICON, OnNotifyIcon)   //消息映射部分加入
ON_COMMAND(ID_SHOW, OnShow)
//执行定义的函数
ON_COMMAND(ID_EXIT, OnExit)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CMyDlg message handlers
BOOL CMyDlg::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
//初始化NOTIFYICONDATA结构
m_Nid.cbSize = sizeof(NOTIFYICONDATA);
m_Nid.hWnd = m_hWnd;
m_Nid.uID = 100;
m_Nid.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
m_Nid.uCallbackMessage = WM_NOTIFYICON;
m_Nid.hIcon = (HICON)LoadImage(AfxGetInstanceHandle(),
MAKEINTRESOURCE(IDR_MAINFRAME), IMAGE_ICON, 16, 16, NULL);
StrCpy(m_Nid.szTip, _T("Demo"));
return TRUE;  // return TRUE  unless you set the focus to a control
}
void CMyDlg::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 CMyDlg::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
{
CDialog::OnPaint();
}
}
// The system calls this to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CMyDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
void CMyDlg::OnButton1()
{
// TODO: Add your control notification handler code here
//隐藏窗口
ShowWindow(SW_HIDE);
//在任务栏中添加图标
Shell_NotifyIcon(NIM_ADD, &m_Nid);
}
void CMyDlg::OnNotifyIcon(WPARAM wParam, LPARAM lParam)
{
if (wParam == 100)
{
if (lParam == WM_LBUTTONDBLCLK)
//当点击左键的时候
{
//删除任务栏中的图标
Shell_NotifyIcon(NIM_DELETE, &m_Nid);
//显示窗口
ShowWindow(SW_SHOWNORMAL);
UpdateWindow();
}
else
if (lParam == WM_RBUTTONDOWN || lParam == WM_LBUTTONDOWN)  //当点击右键的时候
{
//显示快捷子菜单
CMenu menu;
if (!menu.LoadMenu(IDR_MENU1))
{
return;
}
CPoint point;
GetCursorPos(&point);
SetForegroundWindow();
CMenu* pSubMenu = menu.GetSubMenu(0);
if (pSubMenu == NULL)
{
return;
}
pSubMenu->TrackPopupMenu(TPM_LEFTBUTTON | TPM_RIGHTBUTTON,
point.x, point.y, this, NULL);
PostMessage(WM_NULL, 0, 0);
}
}
}
void CMyDlg::OnShow()   //菜单项的显示实现
{
//删除任务栏中的图标
Shell_NotifyIcon(NIM_DELETE , &m_Nid);
//显示窗口
ShowWindow(SW_SHOWNORMAL);
UpdateWindow();
}
void CMyDlg::OnExit()
//菜单项的退出实现
{
//删除任务栏中的图标
Shell_NotifyIcon(NIM_DELETE, &m_Nid);
//关闭窗口
SendMessage(WM_CLOSE);
}  

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