Serial_Class.zip_serial_class_visual c

#include "StdAfx.h" #include "SerialTestMFC.h" #include "ChildView.h" #include "ComSelectDlg.h" #include "SheetSettings.h" #ifdef _UNICODE #include <malloc.h> #endif #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CChildView BEGIN_MESSAGE_MAP(CChildView,CWnd) //{{AFX_MSG_MAP(CChildView) ON_COMMAND(ID_COM_SETTINGS, OnComSettings) ON_UPDATE_COMMAND_UI(ID_COM_SETTINGS, OnUpdateComSettings) ON_WM_CREATE() ON_WM_SIZE() ON_COMMAND(ID_COMMANDS_SENDFILE, OnCommandSendFile) ON_COMMAND(ID_COMMANDS_SENDBREAK, OnCommandSendBreak) ON_WM_SETFOCUS() //}}AFX_MSG_MAP ON_WM_SERIAL(OnSerialMsg) END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CChildView methods CChildView::CChildView() { } CChildView::~CChildView() { // Close the serial port m_serial.Close(); } BOOL CChildView::PreCreateWindow(CREATESTRUCT& cs) { // Check if the window can be created if (!CWnd::PreCreateWindow(cs)) return FALSE; // Change the styles cs.style &= ~WS_BORDER; cs.lpszClass = AfxRegisterWndClass(CS_HREDRAW|CS_VREDRAW|CS_DBLCLKS,::LoadCursor(0, IDC_ARROW), HBRUSH(COLOR_WINDOW), 0); return TRUE; } void CChildView::OnComSettings() { // Display the COM settings dialog box CSheetSettings sheetSettings(&m_serial,this); sheetSettings.DoModal(); } void CChildView::OnUpdateComSettings(CCmdUI* pCmdUI) { pCmdUI->Enable(m_serial.GetCommHandle() != INVALID_HANDLE_VALUE); } int CChildView::OnCreate(LPCREATESTRUCT lpCreateStruct) { // Call base class if (CWnd::OnCreate(lpCreateStruct) == -1) return -1; // Create the rich edit control VERIFY(m_wndEdit.Create(WS_VISIBLE|WS_CHILD|WS_BORDER|ES_AUTOHSCROLL|ES_AUTOVSCROLL|ES_LEFT|ES_MULTILINE,CRect(0,0,0,0),this,0)); // Obtain the requested COM port CComSelectDlg dlgComSelect(this); dlgComSelect.DoModal(); // Open the serial port if (m_serial.Open(dlgComSelect.m_strComPort,this) != ERROR_SUCCESS) { AfxMessageBox(_T("Unable to open COM-port"),MB_ICONSTOP|MB_OK); GetParent()->PostMessage(WM_CLOSE); return 0; } // Set the serial port in the RichCommEdit control m_wndEdit.m_pSerial = &m_serial; return 0; } void CChildView::OnSize(UINT nType, int cx, int cy) { // Call base class CWnd::OnSize(nType, cx, cy); // Size the controls as well m_wndEdit.SetWindowPos(0,0,0,cx,cy,SWP_NOACTIVATE|SWP_NOMOVE|SWP_NOOWNERZORDER|SWP_NOZORDER); } LRESULT CChildView::OnSerialMsg (WPARAM wParam, LPARAM /*lParam*/) { CSerial::EEvent eEvent = CSerial::EEvent(LOWORD(wParam)); CSerial::EError eError = CSerial::EError(HIWORD(wParam)); if (eError) DisplayEvent(_T("An internal error occurred.")); if (eEvent & CSerial::EEventBreak) DisplayEvent(_T("Break detected on input.")); if (eEvent & CSerial::EEventError) DisplayEvent(_T("A line-status error occurred.")); if (eEvent & CSerial::EEventRcvEv) DisplayEvent(_T("Event character has been received.")); if (eEvent & CSerial::EEventRing) DisplayEvent(_T("Ring detected")); if (eEvent & CSerial::EEventSend) DisplayEvent(_T("All data is send")); if (eEvent & CSerial::EEventCTS) DisplayEventSetting(_T("CTS signal change"), _T("CTS"), m_serial.GetCTS()); if (eEvent & CSerial::EEventDSR) DisplayEventSetting(_T("DSR signal change"), _T("DSR"), m_serial.GetDSR()); if (eEvent & CSerial::EEventRLSD) DisplayEventSetting(_T("RLSD signal change"), _T("RLSD"), m_serial.GetRLSD()); if (eEvent & CSerial::EEventRecv) { // Create a clean buffer DWORD dwRead; char szData[101]; const int nBuflen = sizeof(szData)-1; // Obtain the data from the serial port do { m_serial.Read(szData,nBuflen,&dwRead); szData[dwRead] = '\0'; // Scan the string for unwanted characters for (DWORD dwChar=0; dwChar<dwRead; dwChar++) { if (!isprint(szData[dwChar]) && !isspace(szData[dwChar])) { szData[dwChar] = '.'; } } #ifdef _UNICODE // Convert the ANSI data to Unicode LPTSTR lpszData = LPTSTR(_alloca((dwRead+1)*sizeof(TCHAR))); if (!::MultiByteToWideChar(CP_ACP, 0, szData, -1, lpszData, dwRead+1)) return 0; // Display the fetched string DisplayData(lpszData); #else // Display the fetched string DisplayData(szData); #endif } while (dwRead == nBuflen); } return 0; } void CChildView::DisplayEvent (LPCTSTR lpszMsg) { // Format the selection as red text CHARFORMAT cf; cf.cbSize = sizeof(cf); cf.dwMask = CFM_COLOR; m_wndEdit.GetSelectionCharFormat(cf); cf.crTextColor = 0x000000FF; cf.dwEffects &= ~CFE_AUTOCOLOR; m_wndEdit.SetSelectionCharFormat(cf); // Display the text TCHAR tszMsg[200]; wsprintf(tszMsg,_T("[%s]"), lpszMsg); m_wndEdit.SetSel(-1,-1); m_wndEdit.ReplaceSel(tszMsg); } void CChildView::DisplayEventSetting (LPCTSTR lpszMsg, LPCTSTR lpszSetting, bool fOn) { TCHAR tszMsg[200]; wsprintf(tszMsg,_T("%s (%s=%s)"), lpszMsg, lpszSetting, (fOn?_T("on"):_T("off"))); DisplayEvent(tszMsg); } void CChildView::DisplayData (LPCTSTR pszData) { // Format the selection as default text CHARFORMAT cf; cf.cbSize = sizeof(cf); cf.dwMask = CFM_COLOR; m_wndEdit.GetSelectionCharFormat(cf); cf.dwEffects |= CFE_AUTOCOLOR; m_wndEdit.SetSelectionCharFormat(cf); // Add the event to the edit control m_wndEdit.SetSel(-1,-1); m_wndEdit.ReplaceSel(pszData); } void CChildView::OnCommandSendFile() { // Select the file CFileDialog dlgFileOpen(TRUE,NULL,NULL,OFN_FILEMUSTEXIST|OFN_HIDEREADONLY|OFN_PATHMUSTEXIST,_T("All files (*.*)|*.*||"),this); if (dlgFileOpen.DoModal() != IDOK) return; // Open the file HANDLE hFile = ::CreateFile(dlgFileOpen.GetPathName(),GENERIC_READ,FILE_SHARE_READ,NULL,OPEN_EXISTING,FILE_FLAG_SEQUENTIAL_SCAN,NULL); if (hFile != INVALID_HANDLE_VALUE) { // Obtain file length DWORD dwDataLen = ::GetFileSize(hFile,0); // Map the file into memory HANDLE hMap = ::CreateFileMapping(hFile,NULL,PAGE_READONLY,0,0,NULL); if (hMap != NULL) { LPVOID lpData = ::MapViewOfFile(hMap,FILE_MAP_READ,0,0,0); if (lpData) { // Write all data DWORD dwWritten = 0; m_serial.Write(lpData,dwDataLen,&dwWritten); // Display event CString strEvent; strEvent.Format(_T("Written %d bytes."), dwWritten); DisplayEvent(strEvent); // Unmap the view ::UnmapViewOfFile(lpData); } // Close mapping ::CloseHandle(hMap); } // Close file ::CloseHandle(hFile); } } void CChildView::OnCommandSendBreak() { // Send the break m_serial.Break(); } void CChildView::OnSetFocus(CWnd* pOldWnd) { // Call base class CWnd::OnSetFocus(pOldWnd); // Pass focus to edit-window m_wndEdit.SetFocus(); }