AddString("9600");((CComboBox*)GetDlgItem(IDC_COMBO2))->AddString("38400");((CComboBox*)GetDlgItem(IDC_COMBO2))->AddString("115200");((CComboBox*)GetDlgItem(IDC_COMBO2))->SetCurSel(0+baud);longlReg; HKEYhKey; DWORDMaxValueLength;-IMDN开发者社群-imdn.cn"> AddString("9600");((CComboBox*)GetDlgItem(IDC_COMBO2))->AddString("38400");((CComboBox*)GetDlgItem(IDC_COMBO2))->AddString("115200");((CComboBox*)GetDlgItem(IDC_COMBO2))->SetCurSel(0+baud);longlReg; HKEYhKey; DWORDMaxValueLength; - IMDN开发者社群-imdn.cn">

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上位机软件动态获取计算机COM口

于 2022-03-14 发布文件大小:1.86 MB

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下载积分: 2 下载次数: 1

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代码说明：

应用背景通过MFC6.0生成一个单文档程序，然后新建一个对话框并生成一个新类；在对话框中添加两个组合框控件。在生成的新类上右击增加windows消息WM_INITDIALOG生成处理函数，函数内容见“关键技术描述”。函数体中的index和baud均为int型，可设为全局变量。关键技术BOOL CComDlg::OnInitDialog() { CDialog::OnInitDialog(); ((CComboBox *)GetDlgItem(IDC_COMBO2))->AddString("4800"); ((CComboBox *)GetDlgItem(IDC_COMBO2))->AddString("9600"); ((CComboBox *)GetDlgItem(IDC_COMBO2))->AddString("38400"); ((CComboBox *)GetDlgItem(IDC_COMBO2))->AddString("115200"); ((CComboBox *)GetDlgItem(IDC_COMBO2))->SetCurSel(0+baud); long lReg; HKEY hKey; DWORD MaxValueLength;

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