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MFC 中的 Rich Edit函数

Rich Edit 控件是一个窗口，用户可以在其中输入和编辑文本，可以为文本分配字符和段落格式，并可以包含嵌入式OLE对象，它由 CRichEditCtrl 类表示。

步骤1 - 删除TODO行，然后从工具箱中拖动一个Rich Edit控件和三个按钮。

链接：https://www.learnfk.comhttps://www.learnfk.com/mfc/mfc-rich-edit.html

来源：LearnFk无涯教程网

步骤2 - 将这三个按钮的标题分别从粗体，斜体和下划线更改为IDC_BUTTON_BOLD，IDC_BUTTON_ITALIC和IDC_BUTTON_UNDERLINE。

步骤3 - 将以下属性设置为True：Multiline，Want Return，Vertical Scroll。

步骤4 - 为Rich Edit Control添加控制变量m_richEdit。

步骤5 - 转到CMFCRichEditApp并在CMFCRichEditApp::InitInstance()函数中调用::AfxInitRichEdit2()，如以下代码所示。

无涯教程网

BOOL CMFCRichEditApp::InitInstance() {
//TODO: call AfxInitRichEdit2() to initialize richedit2 library.
   //InitCommonControlsEx() is required on Windows XP if an application
   //manifest specifies use of ComCtl32.dll version 6 or later to enable
   //visual styles. Otherwise, any window creation will fail.
   INITCOMMONCONTROLSEX InitCtrls;
   InitCtrls.dwSize = sizeof(InitCtrls);
   //Set this to include all the common control classes you want to use
   //in your application.
   InitCtrls.dwICC = ICC_WIN95_CLASSES;
   InitCommonControlsEx(&InitCtrls);

   ::AfxInitRichEdit2();
   CWinApp::InitInstance();

   
   AfxEnableControlContainer();
   
   //Create the shell manager, in case the dialog contains
   //any shell tree view or shell list view controls.
   CShellManager *pShellManager = new CShellManager;

   //Activate "Windows Native" visual manager for enabling themes in MFC controls
   CMFCVisualManager::SetDefaultManager(RUNTIME_CLASS(CMFCVisualManagerWindows));

   //Standard initialization
   //If you are not using these features and wish to reduce the size
   //of your final executable, you should remove from the following
   //the specific initialization routines you do not need
   //Change the registry key under which our settings are stored
   //TODO: You should modify this string to be something appropriate
   //such as the name of your company or organization
   SetRegistryKey(_T("Local AppWizard-Generated Applications"));

   CMFCRichEditDlg dlg;
   m_pMainWnd = &dlg;
   INT_PTR nResponse = dlg.DoModal();
   if (nResponse == IDOK) {
      //TODO: Place code here to handle when the dialog is
      //dismissed with OK
   }else if (nResponse == IDCANCEL) {
      //TODO: Place code here to handle when the dialog is
      //dismissed with Cancel
   }else if (nResponse == -1) {
      TRACE(traceAppMsg, 0, "Warning: dialog creation failed, so
                                application is terminating unexpectedly.\n");
      TRACE(traceAppMsg, 0, "Warning: if you are using MFC controls on
              the dialog, you cannot #define _AFX_NO_MFC_CONTROLS_IN_DIALOGS.\n");
   }
	
   //Delete the shell manager created above.
   if (pShellManager != NULL) {
      delete pShellManager;
   }
	
   //Since the dialog has been closed, return FALSE so that we exit the
   //application, rather than start the application's message pump.
   return FALSE;
}

步骤6 - 为所有三个按钮添加Click事件处理程序。这是这些事件的实现。

void CMFCRichEditDlg::OnBnClickedButtonBold() { 
   //TODO: Add your control notification handler code here 
   CHARFORMAT Cfm;
	
   m_richEdit.GetSelectionCharFormat(Cfm);  
	
   Cfm.cbSize = sizeof(CHARFORMAT); 
   Cfm.dwMask = CFM_BOLD; 
   Cfm.dwEffects ^= CFE_BOLD; 
	
   m_richEdit.SetSelectionCharFormat(Cfm); 
   m_richEdit.SetFocus(); 
}
  
void CMFCRichEditDlg::OnBnClickedButtonItalic() { 
   //TODO: Add your control notification handler code here
   CHARFORMAT Cfm;  
   
   m_richEdit.GetSelectionCharFormat(Cfm);  
	
   Cfm.cbSize = sizeof(CHARFORMAT); 
   Cfm.dwMask = CFM_ITALIC; 
   Cfm.dwEffects ^= CFE_ITALIC;  
	
   m_richEdit.SetSelectionCharFormat(Cfm); 
   m_richEdit.SetFocus(); 
}
  
void CMFCRichEditDlg::OnBnClickedButtonUnderline() { 
   //TODO: Add your control notification handler code here 
   CHARFORMAT Cfm;  
	
   m_richEdit.GetSelectionCharFormat(Cfm); 
	
   Cfm.cbSize = sizeof(CHARFORMAT); 
   Cfm.dwMask = CFM_UNDERLINE; 
   Cfm.dwEffects ^= CFE_UNDERLINE;  
	
   m_richEdit.SetSelectionCharFormat(Cfm); 
   m_richEdit.SetFocus(); 
}