自学教程：C++ GetEditCtrl函数代码示例

void CEditorView::OnPopupLoad() {	// TODO: Add your command handler code here	BOOL endmarker;	CString FileName;	CString WindowText;	CString WindowLine;	static char BASED_CODE szFilter[] = "Text Files (*.txt)|*.txt|Data Files (*.dat)|*.dat|All Files (*.*)|*.*||";	CFileDialog* pLoadFile = new CFileDialog(TRUE,NULL,NULL,0,&szFilter[0],NULL);	if (IDOK==pLoadFile->DoModal())	{		WindowText = "";		FileName = pLoadFile->GetPathName();		delete pLoadFile;		CStdioFile* pFile = new CStdioFile(FileName,CFile::modeRead);		do		{			endmarker = pFile->ReadString(WindowLine);			WindowText = WindowText+WindowLine+"/r/n";		}		while (endmarker);		GetEditCtrl().SetSel(-1,0,FALSE); 		GetEditCtrl().ReplaceSel(WindowText);		pFile->Close();		delete pFile;	}	}

LRESULT COXNotesEditView::OnSetMargins(WPARAM wParam, LPARAM lParam){	if (m_bUpdatingMargins)		return Default();	switch (wParam)	{	case EC_USEFONTINFO:		{			LRESULT lRslt=Default();			m_bUpdatingMargins=TRUE;			m_nMargins=PtrToUint(SendMessage(EM_GETMARGINS,0,0));			switch (m_nSide)			{			case SIDE_LEFT:				GetEditCtrl().SetMargins(LOWORD(m_nMargins)+m_nNotesWidth,					HIWORD(m_nMargins));				break;			case SIDE_RIGHT:				GetEditCtrl().SetMargins(LOWORD(m_nMargins),					HIWORD(m_nMargins)+m_nNotesWidth);				break;			}			m_bUpdatingMargins=FALSE;			return lRslt;		}		break;	case EC_LEFTMARGIN:		m_nMargins=MAKELONG(lParam,HIWORD(m_nMargins));		if (m_nSide==SIDE_LEFT)		{			m_bUpdatingMargins=TRUE;			LPARAM lPrm=MAKELONG(LOWORD(m_nMargins)+m_nNotesWidth,				HIWORD(m_nMargins));			LRESULT lRslt=SendMessage(EM_SETMARGINS,wParam,lPrm);			m_bUpdatingMargins=FALSE;			return lRslt;		}		else			return Default();		break;	case EC_RIGHTMARGIN:		m_nMargins=MAKELONG(LOWORD(m_nMargins),lParam);		if (m_nSide==SIDE_RIGHT)		{			m_bUpdatingMargins=TRUE;			LPARAM lPrm=MAKELONG(LOWORD(m_nMargins),				HIWORD(m_nMargins)+m_nNotesWidth);			LRESULT lRslt=SendMessage(EM_SETMARGINS,wParam,lPrm);			m_bUpdatingMargins=FALSE;			return lRslt;		}		else			return Default();		break;	default:		return Default();	}}

void MsgWndView::DisplayMessage(LPCTSTR msg){	CString strTemp = msg;	strTemp += _T("/r/n");	int len = GetEditCtrl().GetWindowTextLength();	GetEditCtrl().SetSel(len, len);	GetEditCtrl().ReplaceSel(strTemp);}

void CSynBCGPEditView::OnEditGotoLine(){	CGotoLineDlg goDlg(this, GetEditCtrl()->GetLineCount());	if (goDlg.DoModal() != IDOK)	{		return;	}	GetEditCtrl()->GoToLine(goDlg.m_nLineNumber);}

BOOL CxEditView::OnEscape(UINT){   BOOL bHandled = FALSE;   if (GetEditCtrl().IsSelection())   {      GetEditCtrl().SelectNone();      bHandled = TRUE;   }   return bHandled;}

void CEditView::ReadFromArchive(CArchive& ar, UINT nLen)	// Read certain amount of text from the file, assume at least nLen	// characters (not bytes) are in the file.{	ASSERT_VALID(this);	LPVOID hText = LocalAlloc(LMEM_MOVEABLE, (nLen+1)*sizeof(TCHAR));	if (hText == NULL)		AfxThrowMemoryException();	LPTSTR lpszText = (LPTSTR)LocalLock(hText);	ASSERT(lpszText != NULL);	if (ar.Read(lpszText, nLen*sizeof(TCHAR)) != nLen*sizeof(TCHAR))	{		LocalUnlock(hText);		LocalFree(hText);		AfxThrowArchiveException(CArchiveException::endOfFile);	}	// Replace the editing edit buffer with the newly loaded data	lpszText[nLen] = '/0';#ifndef _UNICODE	if (afxData.bWin32s)	{		// set the text with SetWindowText, then free		BOOL bResult = ::SetWindowText(m_hWnd, lpszText);		LocalUnlock(hText);		LocalFree(hText);		// make sure that SetWindowText was successful		if (!bResult || ::GetWindowTextLength(m_hWnd) < (int)nLen)			AfxThrowMemoryException();		// remove old shadow buffer		delete[] m_pShadowBuffer;		m_pShadowBuffer = NULL;		m_nShadowSize = 0;		ASSERT_VALID(this);		return;	}#endif	LocalUnlock(hText);	HLOCAL hOldText = GetEditCtrl().GetHandle();	ASSERT(hOldText != NULL);	LocalFree(hOldText);	GetEditCtrl().SetHandle((HLOCAL)(UINT)(DWORD)hText);	Invalidate();	ASSERT_VALID(this);}

BOOL	 COXNotesEditView::ShowBookmark(UINT nChar){	if (IsMarked(nChar))	{		UINT nLine=GetEditCtrl().LineFromChar(nChar);		UINT nFirstVisible=GetEditCtrl().GetFirstVisibleLine();		UINT nLastVisible=GetLastVisibleLine();		if (nFirstVisible>nLine || nLastVisible<nLine)			GetEditCtrl().LineScroll(nLine-nFirstVisible);		return TRUE;	}	else		return FALSE;}

void CxEditView::OnFormatFont() {   CxFontDialog dlg(this);   dlg.m_sample = GetEditCtrl().GetSelText();   ::FontDialog(this, &m_font, CF_EFFECTS | CF_SCREENFONTS, &dlg);}

// @pymethod |PyCEdit|CreateWindow|Creates the window for a new Edit object.static PyObject *PyCEdit_create_window(PyObject *self, PyObject *args){	int style, id;	PyObject *obParent;	RECT rect;	if (!PyArg_ParseTuple(args, "i(iiii)Oi:CreateWindow", 			   &style, // @pyparm int|style||The style for the Edit.  Use any of the win32con.BS_* constants.			   &rect.left,&rect.top,&rect.right,&rect.bottom,			   // @pyparm (left, top, right, bottom)|rect||The size and position of the Edit.			   &obParent, // @pyparm <o PyCWnd>|parent||The parent window of the Edit.  Usually a <o PyCDialog>.			   &id )) // @pyparm int|id||The Edits control ID. 		return NULL;	if (!ui_base_class::is_uiobject(obParent, &PyCWnd::type))		RETURN_TYPE_ERR("parent argument must be a window object");	CWnd *pParent = GetWndPtr( obParent );	if (pParent==NULL)		return NULL;	CEdit *pEdit = GetEditCtrl(self);	if (!pEdit)		return NULL;	BOOL ok;	GUI_BGN_SAVE;	ok = pEdit->Create(style, rect, pParent, id );	GUI_END_SAVE;	if (!ok)		RETURN_ERR("CEdit::Create");	RETURN_NONE;}

// @pymethod |PyCEdit|SetSel|Sets the selection in the edit control.static PyObject *PyCEdit_set_sel(PyObject *self, PyObject *args){	CEdit *pEdit = GetEditCtrl(self);	int start=0,end=0;	BOOL bNoScroll = FALSE;	if (!pEdit)		return NULL;	if (!PyArg_ParseTuple(args, "i|ii:SetSel", 	                    &start, // @pyparm int|start||Specifies the starting position. 	                            // If start is 0 and end is -1, all the text in the edit control is selected. 	                            // If start is -1, any current selection is removed.	                    &end,   // @pyparm int|end|start|Specifies the ending position. 	                    &bNoScroll)) {  // @pyparm int|bNoScroll|0|Indicates whether the caret should be scrolled into view. If 0, the caret is scrolled into view. If 1, the caret is not scrolled into view.		PyErr_Clear();		bNoScroll = FALSE;		if (!PyArg_ParseTuple(args, "(ii)|i:SetSel", 							&start, // @pyparmalt2 (int, int)|start,end)||As for normal start, end args.							&end,  							&bNoScroll)) // @pyparmalt2 int|bNoScroll|0|Indicates whether the caret should be scrolled into view. If 0, the caret is scrolled into view. If 1, the caret is not scrolled into view.			return NULL;	}	if (start!=end && end==0)		end=start;	GUI_BGN_SAVE;	pEdit->SetSel(start,end,bNoScroll);	 // @pyseemfc CEdit|SetSel	GUI_END_SAVE;	RETURN_NONE;}

void CBaseView::OutputMsgLine( const char * line ){	BeginNewLine( );	OutputMsgHeader( );	m_astrMsg.Add( line );	GetEditCtrl().ReplaceSel( line );}

void CBaseView::BeginNewLine( ){	GetEditCtrl().SetSel( -1, -1 );	int nLineCount = GetEditCtrl().GetLineCount();	if( nLineCount >= 1 )	{		//int nLineIndex = GetEditCtrl().LineIndex( nLineCount-1 );		//int nLineLen = GetEditCtrl().LineLength( nLineIndex );		CPoint point = GetEditCtrl().PosFromChar( UINT(-1)/*nLineIndex+nLineLen*/ );		GetEditCtrl().SetCaretPos( point );	}	CString	string	=	STRING_CRLF;	GetEditCtrl().ReplaceSel( string );}

int COXNotesEditView::ImageFromLine(UINT nLine) const{	int nRet=-1;	CEdit& edt=GetEditCtrl();	UINT nFirst=edt.LineIndex(nLine);	UINT nLast=edt.LineLength(edt.LineIndex(nLine));	if (nLast)		nLast=nLast+nFirst-1;	else		nLast=nFirst;		for (int n=0;n<m_arBookmarks.GetSize();n++)	{		//every value in the m_arBookmarks array 		//consists of index of the char the bookmark set to		//(that is 24 least significant bits in the value) and		//8 most significant bits represents image index of 		//the bookmark in m_imgBookmarks		DWORD dwIndex=m_arBookmarks.GetAt(n);		DWORD dwChar=0x00FFFFFF & dwIndex;		if (dwChar>=nFirst)		{			if (dwChar<=nLast)				nRet=dwIndex>>24;			else				return nRet;		}	}

void COXNotesEditView::OnLButtonDblClk(UINT nFlags, CPoint point) {	CRect rct;	GetNotesRect(&rct);	if (rct.PtInRect(point))	{		int n=HIWORD(GetEditCtrl().CharFromPos(point));		int nChar=GetEditCtrl().LineIndex(n);		if (IsMarked(nChar))			RemoveBookmarks(nChar,nChar);		else			SetBookmark(nChar);	}	CEditView::OnLButtonDblClk(nFlags, point);}

void CMsgView::OnContextMenu(CWnd *pWnd, CPoint point) {    CFrameWnd *pFrame;    CMenu menu;    CMenu *pPopupMenu;    int nStart;    int nEnd;    UINT uiEnable;    // make sure window is active    pFrame = GetParentFrame ();    ASSERT (pFrame != NULL);    if (pFrame != NULL)    {        pFrame->ActivateFrame ();    };    if (!menu.LoadMenu (IDR_COMPILEVW_POPUP))    {        return;    }    pPopupMenu = menu.GetSubMenu (0);    ASSERT (pPopupMenu != NULL);    if (pPopupMenu == NULL)    {        return;    }    GetEditCtrl().GetSel(nStart, nEnd);    uiEnable = (nStart == nEnd) ? MF_DISABLED | MF_GRAYED : MF_ENABLED;    pPopupMenu->EnableMenuItem(IDM_MSG_COPY, uiEnable);    pPopupMenu->TrackPopupMenu (TPM_LEFTALIGN | TPM_RIGHTBUTTON, point.x, point.y, this);}

/** * show previous error. * *  selects the previous error message and displays the source location. * * @param           - * @return          - * @exception       - * @see             GetLine(), SelectLine(), EvaluateErrorMessage(), ShowSourceLocation()*/void CMsgView::ShowPreviousError(){    int     iLine;    BOOL    bFound = FALSE;    CString strLine;    CString strSourceFile;    CString strLocation;    CEdit&  editCtrl = GetEditCtrl();    iLine = editCtrl.LineFromChar();    --iLine;    if(iLine < 0)    {        iLine = editCtrl.GetLineCount() - 1;    }    while(GetLine(iLine, strLine))    {        if(EvaluateErrorMessage(strLine, strSourceFile, strLocation))        {            SelectLine(iLine);            GetCDInfo(iLine-1, editCtrl, strSourceFile, dynamic_cast<CMsgFrame*>(GetParentFrame()), GetDocument());            ShowSourceLocation(strSourceFile, strLocation);            bFound = TRUE;            break;        }        --iLine;    }    if(!bFound)    {        MessageBeep(-1);    }}

BOOL CSynBCGPEditView::OnCmdMsg(UINT nID, int nCode, void* pExtra, AFX_CMDHANDLERINFO* pHandlerInfo){	((CCoolFormat3View *)GetParent()->GetParent())->GetDocument()->SetModifiedFlag(GetEditCtrl()->IsModified());	((CCoolFormat3View *)GetParent()->GetParent())->GetDocument()->CheckTitle();	return CBCGPEditView::OnCmdMsg(nID, nCode, pExtra, pHandlerInfo);}

void EditTxt::OnInitialUpdate() {	CFont * f; 	CEdit  &   n_edit=GetEditCtrl();	CEditView::OnInitialUpdate();	CMainFrame *pFrm=(CMainFrame *)AfxGetMainWnd();	pFrm->m_edit=(EditTxt*)this;	// TODO: Add your specialized code here and/or call the base class		pEdit=&n_edit;	    //设置字体	f = new CFont; 	f->CreateFont(15, // nHeight 		0, // nWidth 		0, // nEscapement 		0, // nOrientation 		0, // nWeight 		FALSE, // bItalic 		FALSE, // bUnderline 		0, // cStrikeOut 		ANSI_CHARSET, // nCharSet 		OUT_DEFAULT_PRECIS, // nOutPrecision 		CLIP_DEFAULT_PRECIS, // nClipPrecision 		DEFAULT_QUALITY, // nQuality 		DEFAULT_PITCH | FF_SWISS, // nPitchAndFamily 		_T("Arial")); // lpszFac     pEdit->SetFont(f); //IDC_EDIT_RECEIVE是Edit框标号}

void CXMLTextView::OnUpdate(CView* pSender, LPARAM lHint, CObject* pHint) {	CXMLTreeDoc *pDoc  = GetDocument();	//从文档类中得到要显示的字符串    m_strContent = pDoc->m_strContent;	//显示字符串    GetEditCtrl().SetWindowText(m_strContent);}

void COutputView::OnDestroy() {	CEdit &theEdit = GetEditCtrl();	theEdit.GetWindowText(GetDocument()->GetOutputText());	CEditView::OnDestroy();}

/** * Function name	CMsgView::OnCreate * Description			 * @param			LPCREATESTRUCT lpCreateStruct * @return			int  * @exception			 * @see			*/int CMsgView::OnCreate(LPCREATESTRUCT lpCreateStruct) {    if (CView::OnCreate (lpCreateStruct) == -1)    {        return (-1);    };    CFont *pFont;    // Set fixed font    pFont = CFont::FromHandle((HFONT)GetStockObject (ANSI_FIXED_FONT));    GetEditCtrl().SetFont(pFont);    GetEditCtrl().SetReadOnly();    // set text limit to maximum of Windows 95/98    GetEditCtrl().SetLimitText(MSGWND_MAXTEXTLEN);    UpdateEditText ();       return (0);}

void CServerView::ShowMessage(CString str){		CEdit& Edit=GetEditCtrl();	m_criticalShowMess.Lock();	int len=Edit.GetWindowTextLength();	Edit.SetSel(len,len);			Edit.ReplaceSel(str+"/r/n");	m_criticalShowMess.Unlock();}

void CPadView::OnScrollTo(CDC*, CPrintInfo* pInfo, POINT){	UINT nPage = pInfo->m_nCurPage;	ASSERT(nPage < (UINT)m_aPageStart.GetSize());	if (nPage != m_nPreviewPage)	{		UINT nIndex = m_aPageStart[nPage];		GetEditCtrl().SetSel((int)nIndex, (int)nIndex);	}}