在VC++6.0中用MSComm控件编程，可以实现串口接收数据和发送数据，数据分别显示在接收框和发送框中.rar资源-CSDN下载

共25个文件

h：5个

cpp：4个

ini：2个

148 浏览量 2024-06-20 18:08:57 上传评论 1 收藏 37KB RAR 举报

在VC++6.0中，开发串口通信应用程序通常会使用Microsoft Foundation Classes (MFC)库中的MSComm控件。MSComm控件提供了一个方便的接口，用于与串行端口进行交互，允许用户实现串口接收数据和发送数据的功能。在本案例中，我们将在MFC环境下创建一个简单的上位机应用，数据将分别显示在接收框和发送框中。我们需要在MFC应用中添加MSComm控件。打开Visual C++ 6.0，创建一个新的MFC AppWizard项目，选择对话框应用程序模板。在对话框编辑器中，从工具箱中找到并拖动MSComm控件到对话框上。通常，该控件的ID会被命名为IDC_MSComm1。接下来，我们需要在头文件（.h）中声明控件，并在实现文件（.cpp）中初始化它。在头文件中添加以下代码： ```cpp #include <afxctl.h> // MSComm 控件需要此头文件 #include "resource.h" class CMyDialog : public CDialog { //... DECLARE_DYNAMIC(CMyDialog) public: CSerialPort m_mscomm; // CSerialPort 是一个封装MSComm控件的类 // 构造函数 CMyDialog(CWnd* pParent = NULL); // 标准构造函数 //... }; ``` 在.cpp文件中，初始化MSComm控件： ```cpp BEGIN_MESSAGE_MAP(CMyDialog, CDialog) //... ON_BN_CLICKED(IDC_BUTTON_SEND, OnBnClickedButtonSend) END_MESSAGE_MAP() CMyDialog::CMyDialog(CWnd* pParent /*=NULL*/) : CDialog(CMyDialog::IDD, pParent) { // 初始化MSComm控件 m_mscomm.Create(this, IDC_MSComm1); m_mscomm.SetPortOpen(false); // 关闭串口 m_mscomm.SetInputLength(1); // 每次读取一个字符 } void CMyDialog::OnBnClickedButtonSend() { // 发送数据示例 CString strSend; GetDlgItem(IDC_EDIT_SEND)->GetWindowText(strSend); m_mscomm.WriteData(strSend); } ``` 为了实现数据接收，我们需要设置事件通知，例如OnComm事件，以便在串口有数据到达时进行处理。我们还需要一个文本框来显示接收到的数据： ```cpp // 在消息映射中添加OnComm事件 ON_WM_COMM() void CMyDialog::OnComm() { if (m_mscomm.GetCommEvent() == CE_RXCHAR) // 如果有字符接收 { char ch; m_mscomm.ReadData(&ch, 1); GetDlgItem(IDC_EDIT_RECEIVE)->AppendText(ch); } } ``` 在主消息循环中，我们需要处理WM_COMM消息： ```cpp BOOL CMyDialog::OnInitDialog() { CDialog::OnInitDialog(); // 添加消息处理 AddMessageFilter(this); RegisterControl(IDC_MSComm1, this); return TRUE; // 返回TRUE除非设置焦点到控件 } ``` 至此，我们已经实现了基本的串口通信功能：通过按钮发送数据，接收到的数据实时显示在接收框中。为了更完整，你可以添加错误处理、波特率、停止位、校验位等设置，以及打开和关闭串口的逻辑。通过这个例子，我们了解了如何在VC++6.0中使用MFC和MSComm控件进行串口通信。这在嵌入式软件上位机开发中非常常见，尤其是在需要与硬件设备进行交互时。不过需要注意的是，VC++6.0是一款较老的开发工具，对于现代的开发需求，可能需要考虑更新到更现代的IDE，如Visual Studio，尽管如此，MSComm控件的概念和使用方法在现代MFC应用中依然适用。

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在VC++6.0中用MSComm控件编程，可以实现串口接收数据和发送数据，数据分别显示在接收框和发送框中.rar （25个子文件）

VC_MSComm源程序

SCommTest.sln 907B

SCommTest.dsw 585B

mscomm.h 3KB

SCommTestDlg.cpp 7KB

SCommTest.clw 2KB

SCommTest.vcproj 6KB

resource.h 825B

mscomm.cpp 8KB

res

SCommTest.ico 1KB

SCommTest.rc2 401B

_desktop.ini 10B

SCommTest.ncb 49KB

SCommTest.plg 2KB

ReadMe.txt 4KB

StdAfx.cpp 211B

SCommTest.aps 21KB

_desktop.ini 10B

SCommTest.rc 7KB

SCommTest.suo 17KB

SCommTest.h 1KB

SCommTest.opt 49KB

SCommTest.cpp 2KB

Debug

StdAfx.h 1KB

SCommTestDlg.h 2KB

SCommTest.dsp 5KB

======================================================================== MICROSOFT FOUNDATION CLASS LIBRARY : SCommTest ======================================================================== AppWizard has created this SCommTest application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application. This file contains a summary of what you will find in each of the files that make up your SCommTest application. SCommTest.dsp This file (the project file) contains information at the project level and is used to build a single project or subproject. Other users can share the project (.dsp) file, but they should export the makefiles locally. SCommTest.h This is the main header file for the application. It includes other project specific headers (including Resource.h) and declares the CSCommTestApp application class. SCommTest.cpp This is the main application source file that contains the application class CSCommTestApp. SCommTest.rc This is a listing of all of the Microsoft Windows resources that the program uses. It includes the icons, bitmaps, and cursors that are stored in the RES subdirectory. This file can be directly edited in Microsoft Visual C++. SCommTest.clw This file contains information used by ClassWizard to edit existing classes or add new classes. ClassWizard also uses this file to store information needed to create and edit message maps and dialog data maps and to create prototype member functions. res\SCommTest.ico This is an icon file, which is used as the application's icon. This icon is included by the main resource file SCommTest.rc. res\SCommTest.rc2 This file contains resources that are not edited by Microsoft Visual C++. You should place all resources not editable by the resource editor in this file. ///////////////////////////////////////////////////////////////////////////// AppWizard creates one dialog class: SCommTestDlg.h, SCommTestDlg.cpp - the dialog These files contain your CSCommTestDlg class. This class defines the behavior of your application's main dialog. The dialog's template is in SCommTest.rc, which can be edited in Microsoft Visual C++. ///////////////////////////////////////////////////////////////////////////// Other standard files: StdAfx.h, StdAfx.cpp These files are used to build a precompiled header (PCH) file named SCommTest.pch and a precompiled types file named StdAfx.obj. Resource.h This is the standard header file, which defines new resource IDs. Microsoft Visual C++ reads and updates this file. ///////////////////////////////////////////////////////////////////////////// Other notes: AppWizard uses "TODO:" to indicate parts of the source code you should add to or customize. If your application uses MFC in a shared DLL, and your application is in a language other than the operating system's current language, you will need to copy the corresponding localized resources MFC42XXX.DLL from the Microsoft Visual C++ CD-ROM onto the system or system32 directory, and rename it to be MFCLOC.DLL. ("XXX" stands for the language abbreviation. For example, MFC42DEU.DLL contains resources translated to German.) If you don't do this, some of the UI elements of your application will remain in the language of the operating system. /////////////////////////////////////////////////////////////////////////////

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