说明：  打开一个TXT文件并显示在EDIT控件中 步骤: 1.新建一个基于对话框的工程，名称为ReadFile 2.在界面上添加一个按钮(IDC_BUTTON1)和一个文本编辑(IDC_EDIT1) IDC_EDIT1的属性:多行、可下拉滚动条. 3.编辑按钮触发事件(void CReadFileDlg::OnButton1()) void CReadFileDlg::OnButton1() { // TODO: Add your control notification handler code here CString sFileFilter="*.hex|*.hex" CString sFileName CFileDialog fDlg(true,NULL,NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,sFileFilter,NULL) fDlg.DoModal() sFileName=fDlg.GetFileName() if(sFileName!="") { CFile file(sFileName,CFile::modeRead) int nFileLength=file.GetLength() char *buffer HGLOBAL hgl=::GlobalAlloc(GMEM_MOVEABLE,nFileLength+1) buffer=(char *)::GlobalLock(hgl) file.Read(buffer,nFileLength) SetDlgItemText(IDC_EDIT1,buffer) ::GlobalUnlock(hgl) ::GlobalFree(hgl) } UpdateData(false) }
(Open a TXT file and displayed in the EDIT control steps: 1. Create a new dialog-based project, known as the ReadFile2. In the interface to add a button (IDC_BUTTON1) and a text editor (IDC_EDIT1) IDC_EDIT1 properties: multi-line, can be drop-down scroll bar .3. Edit button trigger events (void CReadFileDlg:: OnButton1 ()) void CReadFileDlg:: OnButton1 () (//TODO: Add your control notification handler code here CString sFileFilter =*. hex |*. hex CString sFileName CFileDialog fDlg (true, NULL, NULL, OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT, sFileFilter, NULL) fDlg.DoModal () sFileName = fDlg.GetFileName () if (sFileName! =) (CFile file (sFileName, CFile:: modeRead) int nFileLength = file.GetLength () char* buffer HGLOBAL hgl =:: GlobalAlloc (GMEM_MOVEABLE, nFileLength+ 1) buffer = (char*):: GlobalLock (hgl) file.Read (buffer, nFileLength) SetDlgItemText (IDC_EDIT1, buffer):: GlobalUnlock (hgl):: GlobalFree (hgl)) UpdateData (false)))