Visual C++ Data in MFC Dialog Box not Displaying

Question

I am new to C++ and I am playing around with GUI's in MFC. I have a dialog box that displays the information of a camera when you connect it.

This is the resource code for that dialog box

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

I then made a new dialog box that opens when you click on the settings button. I copied a few of the lines over to the new dialog box but the actual data that is transmitted from the camera doesn't appear.

Here is the code for the settings dialog box

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

How do I get the data to appear in the dialog box? Do I need to make a whole class for it? Any help/advice would be aprreciated.

The answer is probably in the C++ code of the IDD_PVSIMPLEUISAMPLE dialog. Search for IDC_DISPLAYPOS in that code. Without seeing that code nobody can give a precise answer. — Jabberwocky
MFC encapsulates all Win32 resources in C++ classes. This includes dialogs. Asking whether you "need to make a whole class for it" doesn't make sense. You cannot have a dialog in MFC without a class. Unless you are using the Windows API directly. But then that's not MFC. — IInspectable
Ok yeah I wasn't sure because the main GUI is in its own .cpp file and I wasn't sure if the dialog box that I added needed its own .cpp file as well — oodan123

JerryYoung JerryYoung · Accepted Answer · 2015-07-24T09:08:07

In first dialog, you can declare a second dialog's class object, use the object obtain the item control object then set data. So you can do like this, in the setting button's callback function, add these codes:

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);
}

Visual C++ Data in MFC Dialog Box not Displaying

1 Answers