Question

我是C ++的新手，我正在使用MFC中的GUI。我有一个对话框，可以在连接时显示相机的信息。

这是该对话框的资源代码

IDD_PVSIMPLEUISAMPLE DIALOGEX 0, 0, 575, 284
STYLE DS_SETFONT | DS_FIXEDSYS | WS_MINIMIZEBOX | WS_MAXIMIZEBOX | WS_POPUP | WS_VISIBLE | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME
EXSTYLE WS_EX_APPWINDOW
CAPTION "PvSimpleUISample"
FONT 8, "MS Shell Dlg", 0, 0, 0x1
BEGIN
    PUSHBUTTON      "Select / Connect",IDC_CONNECT_BUTTON,10,16,86,16
    PUSHBUTTON      "Disconnect",IDC_DISCONNECT_BUTTON,97,16,87,16,WS_DISABLED
    LTEXT           "IP address",IDC_STATIC,10,41,45,8
    EDITTEXT        IDC_IP_EDIT,65,37,119,14,ES_AUTOHSCROLL | ES_READONLY | WS_DISABLED
    LTEXT           "MAC address",IDC_STATIC,10,58,50,8
    EDITTEXT        IDC_MAC_EDIT,65,55,119,14,ES_AUTOHSCROLL | ES_READONLY | WS_DISABLED
    LTEXT           "Manufacturer",IDC_STATIC,10,75,50,8
    EDITTEXT        IDC_MANUFACTURER_EDIT,65,72,119,14,ES_AUTOHSCROLL | ES_READONLY | WS_DISABLED
    LTEXT           "Model",IDC_STATIC,10,93,44,8
    EDITTEXT        IDC_MODEL_EDIT,65,90,119,14,ES_AUTOHSCROLL | ES_READONLY | WS_DISABLED
    LTEXT           "Name",IDC_STATIC,10,110,44,8
    EDITTEXT        IDC_NAME_EDIT,65,107,119,14,ES_AUTOHSCROLL | ES_READONLY | WS_DISABLED
    GROUPBOX        "Connection",IDC_STATIC,4,4,187,123
    LTEXT           "Mode",IDC_STATIC,10,144,55,8
    COMBOBOX        IDC_MODE,66,141,118,30,CBS_DROPDOWNLIST | CBS_SORT | WS_VSCROLL | WS_TABSTOP
    LTEXT           "Channel",IDC_STATIC,9,160,56,8
    OMBOBOX        IDC_CHANNEL,66,157,118,30,CBS_DROPDOWNLIST | CBS_SORT | WS_DISABLED | WS_VSCROLL | WS_TABSTOP
    CONTROL         "Play",IDC_START,"Button",BS_OWNERDRAW | WS_TABSTOP,13,171,44,26
    CONTROL         "Stop",IDC_STOP,"Button",BS_OWNERDRAW | WS_TABSTOP,75,172,42,26
    CONTROL         "Settings",IDC_SETTINGS,"Button",BS_OWNERDRAW | WS_TABSTOP,135,172,43,26
    GROUPBOX        "Parameters and Controls",IDC_CONTROL_GROUP,4,206,187,73
    PUSHBUTTON      "Communication control",IDC_LINK_BUTTON,10,218,174,17,WS_DISABLED
    PUSHBUTTON      "Device control",IDC_DEVICE_BUTTON,10,237,174,17,WS_DISABLED
    PUSHBUTTON      "Image stream control",IDC_STREAMPARAMS_BUTTON,10,256,174,17,WS_DISABLED
    GROUPBOX        "Display",IDC_DISPLAY_GROUP,198,4,371,275
    PUSHBUTTON      "Display",IDC_DISPLAYPOS,205,17,355,254,NOT WS_VISIBLE | WS_DISABLED
    GROUPBOX        "Acquisition Control",IDC_CONTROL_GROUP2,4,128,187,77
END

然后我点击了设置按钮时打开了一个新对话框。我将一些行复制到新对话框中，但是没有出现从相机传输的实际数据。

以下是设置对话框的代码

IDD_SETTINGS DIALOGEX 0, 0, 444, 319
STYLE DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | WS_POPUP | WS_CAPTION | WS_SYSMENU
CAPTION "Settings"
FONT 8, "MS Shell Dlg", 400, 0, 0x1
BEGIN
    DEFPUSHBUTTON   "OK",IDOK,205,298,50,14
    LTEXT           "IP address",IDC_STATIC,10,41,45,8
    EDITTEXT        IDC_IP_EDIT,65,37,119,14,ES_AUTOHSCROLL | ES_READONLY | WS_DISABLED
    LTEXT           "MAC address",IDC_STATIC,10,58,50,8
    EDITTEXT        IDC_MAC_EDIT,65,55,119,14,ES_AUTOHSCROLL | ES_READONLY | WS_DISABLED
    LTEXT           "Manufacturer",IDC_STATIC,10,75,50,8
    EDITTEXT        IDC_MANUFACTURER_EDIT,65,72,119,14,ES_AUTOHSCROLL | ES_READONLY | WS_DISABLED
    LTEXT           "Model",IDC_STATIC,10,93,44,8
    EDITTEXT        IDC_MODEL_EDIT,65,90,119,14,ES_AUTOHSCROLL | ES_READONLY | WS_DISABLED
    LTEXT           "Name",IDC_STATIC,10,110,44,8
    EDITTEXT        IDC_NAME_EDIT,65,107,119,14,ES_AUTOHSCROLL | ES_READONLY | WS_DISABLED
END

如何让数据显示在对话框中？我需要为它做一整节课吗？任何帮助/建议都会受到重视。

Answer 1

在第一个对话框中，可以声明第二个对话框的类对象，使用该对象获取项控制对象然后设置数据。所以你可以这样做，在设置按钮的回调函数中，添加这些代码：

CAAADialog::OnXXXButton()
{
     CBBBDialog dlgb;
     dlgb.DoModal();
     dlgb.GetDlgItem(IDC_IP_EDIT)->SetWindowText(m_strIp);
     dlgb.GetDlgItem(IDC_MAC_EDIT)->SetWindowText(m_strMac);
     dlgb.GetDlgItem(IDC_MANUFACTURER_EDIT)->SetWindowText(m_strManufacture);
     dlgb.GetDlgItem(IDC_NAME_EDIT)->SetWindowText(m_strName);
}

MFC对话框中的Visual C ++数据未显示

1 个答案: