MFC的OnDestroy()在哪里？

jyxuan94 2016-06-27 09:03:52

做托盘图标的时候去百度了下，其他的基本都没问题。主要是在删除图盘图标的时候找不到OnDestroy函数在哪里
3. 程序退出时，删除该图标
这一步一定不能没有，不然的话，程序退出后，通知区域还有这个图标，只有鼠标放上去后才会消失。
在OnDestroy()函数里面：
//删除该图标
::Shell_NotifyIcon(NIM_DELETE, &m_ntIcon);

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jyxuan94 2016-06-27

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引用 1 楼 mjdy123 的回复:

用类向导在消息WM_Destroy里面添加OnDestroy()函数

谢谢

puddingli 2016-06-27

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用类向导在消息WM_Destroy里面添加OnDestroy()函数

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} void CMFCFrame1View::Dump(CDumpContext& dc) const { CView::Dump(dc); } CMFCFrame1Doc* CMFCFrame1View::GetDocument() // non-debug version is inline { ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMFCFrame1Doc))); return (CMFCFrame1Doc*)m_pDocument; } #endif //_DEBUG ///////////////////////////////////////////////////////////////////////////// // CMFCFrame1View message handlers BOOL CMFCFrame1View::SetWindowPixelFormat(HDC hDC) { PIXELFORMATDESCRIPTOR pixelDesc= { sizeof(PIXELFORMATDESCRIPTOR), 1, PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL| PFD_DOUBLEBUFFER|PFD_SUPPORT_GDI, PFD_TYPE_RGBA, 24, 0,0,0,0,0,0, 0, 0, 0, 0,0,0,0, 32, 0, 0, PFD_MAIN_PLANE, 0, 0,0,0 }; this->m_GLPixelIndex = ChoosePixelFormat(hDC,&pixelDesc); if(this->m_GLPixelIndex==0) { this->m_GLPixelIndex = 1; if(DescribePixelFormat(hDC,this->m_GLPixelIndex,sizeof(PIXELFORMATDESCRIPTOR),&pixelDesc)==0) { return FALSE; } } if(SetPixelFormat(hDC,this->m_GLPixelIndex,&pixelDesc)==FALSE) { return FALSE; } return TRUE; } int CMFCFrame1View::OnCreate(LPCREATESTRUCT lpCreateStruct) { if (CView::OnCreate(lpCreateStruct) == -1) return -1; // TODO: Add your specialized creation code here HWND hWnd = this->GetSafeHwnd(); HDC hDC = ::GetDC(hWnd); if(this->SetWindowPixelFormat(hDC)==FALSE) { return 0; } if(this->CreateViewGLContext(hDC)==FALSE) { return 0; } return 0; } BOOL CMFCFrame1View::CreateViewGLContext(HDC hDC) { this->m_hGLContext = wglCreateContext(hDC); if(this->m_hGLContext==NULL) {//创建失败 return FALSE; } if(wglMakeCurrent(hDC,this->m_hGLContext)==FALSE) {//选为当前RC失败 return FALSE; } return TRUE; } void CMFCFrame1View::OnDestroy() { CView::OnDestroy(); // TODO: Add your message handler code here if(wglGetCurrentContext()!=NULL) { wglMakeCurrent(NULL,NULL); } if(this->m_hGLContext!=NULL) { wglDeleteContext(this->m_hGLContext); this->m_hGLContext = NULL; } } void CMFCFrame1View::OnSize(UINT nType, int cx, int cy) { CView::OnSize(nType, cx, cy); // TODO: Add your message handler code here GLsizei width,height; GLdouble aspect; width = cx; height = cy; if(cy==0) { aspect = (GLdouble)width; } else { aspect = (GLdouble)width/(GLdouble)height; } glViewport(0,0,width,height); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(40.0,aspect,5.0,1000.0); } void CMFCFrame1View::OnDraw(CDC* pDC) { CMFCFrame1Doc* pDoc = GetDocument(); ASSERT_VALID(pDoc); // TODO: add draw code for native data here CPaintDC dc(this); glClearColor(1.0,1.0,1.0,1.0); glClear(GL_COLOR_BUFFER_BIT); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(0.0,0.0,10.0,0.0,0.0,0.0,0.0,1.0,0.0); glRotatef(-90.0,1.0,0.0,0.0);/*返回原坐标*/ glTranslatef(-3.0,0.0,0.0); SwapBuffers(dc.m_ps.hdc); glDrawBuffer (GL_BACK); glFlush(); } void CMFCFrame1View::OnZixuan() { // TODO: Add your command handler code here Timer=1; SetTimer(1,100,NULL); } void CMFCFrame1View::OnTimer(UINT nIDEvent) { // TODO: Add your message handler code here and/or call default CPaintDC dc(this); if (Timer==1) { Angle1=Angle1-1; Angle2=Angle2-1; glClearColor(1.0,1.0,1.0,1.0); glClear(GL_COLOR_BUFFER_BIT); glMatrixMode(GL_MODELVIEW);/**/ glLoadIdentity(); gluLookAt(0.0,20.0,0.000000001,0.0,0.0,0.0,0.0,1.0,0.0); glPushMatrix(); glColor3f(0.7,0.7,0.7); glTranslatef(0.0,0.0,1.1); glRotatef(-90.0,1.0,0.0,0.0); glutSolidCone(5.0,0.0,60.0,60.0); /*底盘*/ glPopMatrix(); glPushMatrix(); glColor3f(0.0,0.0,0.0); glTranslatef(3.9,0.99,1.0); /*刻度*/ glRotatef(90.0,0.0,1.0,0.0); gluCylinder(objCylinder, 0.05, 0.05, 0.8, 9999, 9); glPopMatrix(); glPushMatrix(); glColor3f(0.0,0.0,0.0); glTranslatef(-4.7,0.99,1.0); /*刻度*/ glRotatef(90.0,0.0,1.0,0.0); gluCylinder(objCylinder,0.05, 0.05, 0.8, 9999, 9); glPopMatrix(); glPushMatrix(); glColor3f(0.0,0.0,0.0); glTranslatef(0.0,0.99,-2.9); /*刻度*/ glRotatef(180.0,0.0,1.0,0.0); gluCylinder(objCylinder,0.05, 0.05, 0.8, 9999, 9); glPopMatrix(); glPushMatrix(); glColor3f(0.0,0.0,0.0); glTranslatef(0.0,0.99,5.8); /*刻度*/ glRotatef(180.0,0.0,1.0,0.0); gluCylinder(objCylinder,0.05, 0.05,0.8, 9999, 9); glPopMatrix(); glPushMatrix(); glColor3f(0.0,1.0,0.0); glRotatef(45.0,0.0,1.0,0.0); glTranslatef(-0.67,0.99,0.7); /*时针*/ glRotatef(Angle1/129600,0.0,1.0,0.0); gluCylinder(objCylinder, 0.07, 0.02, 2.5, 9999, 9); glPopMatrix(); glPushMatrix(); glColor3f(1.0,0.0,0.0); glTranslatef(0.0,0.99,1.0); /*分针*/ glRotatef(Angle2/360,0.0,1.0,0.0); gluCylinder(objCylinder, 0.05, 0.02, 3.5, 9999, 9); glPopMatrix(); glPushMatrix(); glColor3f(0.0,0.0,0.5); glTranslatef(0.0,0.99,1.0); /*秒针*/ glRotatef(Angle1,0.0,1.0,0.0); gluCylinder(objCylinder, 0.07, 0.02, 4.5, 9999, 9); glPopMatrix(); SwapBuffers(dc.m_ps.hdc); glDrawBuffer (GL_BACK); glFlush(); } else if(Timer==2) { glClearColor(1.0,1.0,1.0,1.0); glClear(GL_COLOR_BUFFER_BIT); if (juli>12.0) { glMatrixMode(GL_MODELVIEW);/*建立了从世界坐标系到观察坐标系的转换矩阵*/ glLoadIdentity(); gluLookAt(0.0,8.0,juli,0.0,0.0,0.0,0.0,1.0,0.0); juli=juli-0.1; glPushMatrix(); glColor3f(0.0,0.0,0.0); glRotatef(-90.0,1.0,0.0,0.0); glutWireCone(40.0,0.0,30.0,30.0); /*画高度为0的圆锥*/ glPopMatrix(); glPushMatrix(); glColor3f(1.0,0.0,1.0); glLineWidth(4.0); glTranslatef(4.0,1.0,0.0); glutWireOctahedron(); /*画八面体*/ glLineWidth(1.0); glPopMatrix(); glPushMatrix(); glColor3f(1.0,0.0,1.0); glTranslatef(0.0,1.1,0.0); glRotatef(Angle2,0.0,1.0,0.0); gluCylinder(objCylinder, 1.0, 1.0, 10.0, 9999, 9); /*画壶*/ glPopMatrix(); } else if(juli<=12.0) { Angle2=Angle2+0.01; if (Angle2==360.0) Angle2=0.0; glMatrixMode(GL_MODELVIEW);/*建立了从世界坐标系到观察坐标系的转换矩阵*/ glLoadIdentity(); x=12.0*sin(Angle2); z=12.0*cos(Angle2); gluLookAt(x,5.0,z,0.0,0.0,0.0,0.0,1.0,0.0); glPushMatrix(); glColor3f(0.0,0.0,0.0); glRotatef(-90.0,1.0,0.0,0.0); glutWireCone(40.0,0.0,30.0,30.0); /*画高度为0的圆锥*/ glPopMatrix(); glPushMatrix(); glColor3f(1.0,0.0,1.0); glLineWidth(4.0); glTranslatef(4.0,1.0,0.0); glutWireOctahedron(); /*画八面体*/ glLineWidth(1.0); glPopMatrix(); glPushMatrix(); glColor3f(1.0,0.0,1.0); glTranslatef(0.0,1.1,0.0); gluCylinder(objCylinder, 1.0, 1.0, 10.0, 9999, 9); /*画壶*/ glPopMatrix(); } SwapBuffers(dc.m_ps.hdc); glDrawBuffer (GL_BACK); glFlush(); } CView::OnTimer(nIDEvent); } void CMFCFrame1View::OnChangDirect() { // TODO: Add your command handler code here Timer=2; SetTimer(1,100 ,NULL); }

基于DirectSound的简易播放器 #include "stdafx.h" #include "test.h" #include "testDlg.h" #include "process.h" #ifdef _DEBUG #define new DEBUG_NEW #endif // 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() // CtestDlg dialog CtestDlg::CtestDlg(CWnd* pParent /*=NULL*/) : CDialog(CtestDlg::IDD, pParent) { m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } void CtestDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); } BEGIN_MESSAGE_MAP(CtestDlg, CDialog) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() //}}AFX_MSG_MAP ON_BN_CLICKED(IDC_BUTTON_OPEN, &CtestDlg::OnBnClickedButtonOpen) ON_BN_CLICKED(IDC_BUTTON_PLAY, &CtestDlg::OnBnClickedButtonPlay) ON_WM_DESTROY() ON_BN_CLICKED(IDC_BUTTON_STOP, &CtestDlg::OnBnClickedButtonStop) END_MESSAGE_MAP() //ON_BN_CLICKED(IDC_Sound_Play, OnSound2) //ON_BN_CLICKED(IDC_Sound_stop, OnSound1) //ON_BN_CLICKED(IDC_sound_pause, OnBothSounds) //ON_WM_DESTROY() //ON_BN_CLICKED(IDC_BUTTON_Slow, OnBUTTONSlow) //ON_BN_CLICKED(IDC_BUTTON_Fast, OnBUTTONFast) //ON_BN_CLICKED(IDC_BUTTON_Normal, OnBUTTONNormal) // CtestDlg message handlers BOOL CtestDlg::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 m_sndSound1 = new CDirectSound(); if(!m_sndSound1) { exit(-1); } return TRUE; // return TRUE unless you set the focus to a control } void CtestDlg::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 CtestDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, reinterpret_cast(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 CtestDlg::OnQueryDragIcon() { return static_cast(m_hIcon); } //--------------------------------------------------------------------------------- void CtestDlg::OnBnClickedButtonOpen() { // TODO: Add your control notification handler code here LPCTSTR lpszFilter =L"Wave File(*.wav)|*.wav|All Files|*.*||"; CFileDialog dlg(TRUE,NULL,NULL,/*OFN_HIDEREADONLY |*/ OFN_OVERWRITEPROMPT,lpszFilter); if(dlg.DoModal()==IDOK) { m_soundfile = dlg.GetPathName(); } } // unsigned int WINAPI FileReadProc(LPVOID pOwner) { CtestDlg* pThis = (CtestDlg*)pOwner; pThis->ReadFileProc(); return 1; } // typedef struct _WAVE_FORMAT { WORD AudioFormat; WORD NumChannels; DWORD SampleRate; DWORD ByteRate; WORD BlockAlign; WORD BitsPerSample; }WAVE_FORMAT,*PWAVE_FORMAT; void CtestDlg::OnBnClickedButtonPlay() { // TODO: Add your control notification handler code here if(m_soundfile.IsEmpty()) { MessageBox(L"请选中播放文件！"); return; } USES_CONVERSION; fp = fopen(W2A(m_soundfile.GetBuffer(m_soundfile.GetLength())),"rb"); if(NULL == fp) { MessageBox(L"打开所所定的播放文件失败,请确认文件是否存在！"); return; } fseek(fp,20,0); //Skip previous 20 bytes RIFF header WAVE_FORMAT waveFormat; int nLen =fread(&waveFormat,1,sizeof(WAVE_FORMAT),fp); AUDIO_CONFIG WaveHead; WaveHead.wFormatTag = 1; WaveHead.nChannels = 2; WaveHead.nSamplesPerSec = 44100; WaveHead.nAvgBytesPerSec = 176400; WaveHead.nBlockAlign = 4; WaveHead.wBitsPerSample = 16; WaveHead.nBlockAlign=waveFormat.BlockAlign; WaveHead.nChannels=waveFormat.NumChannels; WaveHead.nSamplesPerSec=waveFormat.SampleRate; WaveHead.wBitsPerSample=waveFormat.BitsPerSample; WaveHead.nAvgBytesPerSec=waveFormat.ByteRate; m_sndSound1->CreateDSound(&WaveHead,8000); fseek(fp,20+sizeof(WAVE_FORMAT),0); unsigned int dwReadID; m_hThread = (HANDLE)_beginthreadex(0,0,FileReadProc,this,0,&dwReadID); Sleep(200); m_bStop = 0; m_bContine = 1; m_sndSound1->Play(); } void CtestDlg::ReadFileProc() { //BYTE buf[1025]; int n = 0; while(1) { BYTE buf[1025]; int nlen; if(m_bStop) break; nlen = fread(buf,1,1024,fp); if(!nlen) break; while(m_sndSound1->WriteDataToBuf(buf,nlen)==-1) { Sleep(100); } } if(fp) { fclose(fp); fp = NULL; } } void CtestDlg::OnDestroy() { CDialog::OnDestroy(); // TODO: Add your message handler code here m_bStop = 1; OnBnClickedButtonStop(); if(m_hThread) { WaitForSingleObject(m_hThread,2000); CloseHandle(m_hThread); m_hThread = 0; } if(m_sndSound1) { delete m_sndSound1; m_sndSound1 = NULL; } if(fp) { fclose(fp); fp = NULL; } } void CtestDlg::OnBnClickedButtonStop() { // TODO: Add your control notification handler code here m_bStop = 1; if(m_hThread) { WaitForSingleObject(m_hThread,2000); CloseHandle(m_hThread); m_hThread = NULL; } m_sndSound1->Stop(); }

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