Question

I have a subclass of wxHtmlListBox called TestClass, but I get the error:

/usr/include/wx-2.8/wx/string.h:682:0 /usr/include/wx-2.8/wx/string.h:682: error: ‘wxString::wxString(int)’ is private
MainFrame.cpp:106:0 MainFrame.cpp:106: error: within this context

MainFrame.cpp line 106 is this:

TestClass *tc = new TestClass(this, wxID_ANY, wxDefaultPosition, 
                              wxDefaultSize, NULL, wxBORDER_DEFAULT);

The files for TestClass can be found at http://cl.ly/1VSo

Any thoughts on this?

Answer 1

You’re passing wxBORDER_DEFAULT into a const wxString reference:

TestClass(
    wxWindow* parent, // this
    wxWindowID id = wxID_ANY, // wxID_ANY
    const wxPoint& pos = wxDefaultPosition, // wxDefaultPosition
    const wxSize& size = wxDefaultSize, // wxDefaultSize
    long style = 0, // NULL
    const wxString& name = wxHtmlListBoxNameStr ); // wxBORDER_DEFAULT

…but wxBORDER_DEFAULT is part of an enum (essentially an integer):

enum wxBorder
{
    /*  this is different from wxBORDER_NONE as by default the controls do have */
    /*  border */
    wxBORDER_DEFAULT = 0,

    wxBORDER_NONE   = 0x00200000,
    wxBORDER_STATIC = 0x01000000,
    wxBORDER_SIMPLE = 0x02000000,
    wxBORDER_RAISED = 0x04000000,
    wxBORDER_SUNKEN = 0x08000000,
    wxBORDER_DOUBLE = 0x10000000, /* deprecated */
    wxBORDER_THEME =  0x10000000,

    /*  a mask to extract border style from the combination of flags */
    wxBORDER_MASK   = 0x1f200000
};

So it’s using the constructor you mentioned for a wxString:

wxString::wxString(int)

…which is private and hence you’re getting an error. Try passing in a string or NULL instead 🙂