wxHtmlWindow not working for internet sites Topic is solved

[Acki]

hi,
I have the problem with the wxHtmlWindow widget...
I posted this before in this thread:
http://forums.wxwidgets.org/viewtopic.p ... l+internet
but mc2r suggested me to create a new thread for this...

and I must say I'm very new to wxWidgets and this is my first attempt to use it...

the wxHtmlWindow widget doesn't connect to the internet, only to local files (sites)...

I always get an error mesage "Unable to open requested HTML documen: {url}" Shocked
and this site definately exist (you can try the URL)...

I have a firewall running and it should ask me if the app shall connect to the internet, but it doesn't !!! Shocked
means it doesn't even try to connect...
even if I disable the firewall completely it doesn't connect...

I'm using:
WinXP pro (sp2)
Code::Blocks (latest nightly) with MinGW/GCC 3.4.5
wxWidgets 2.8.7 (gcc build from wxPack)
I tried with unicode and non unicode DLL (static and monolite not installed)

I used the (in C::B) embeded editor wxSmith and it created this code (I'll post the whole code as far as there's not much in it):

Code: Select all

#include "testMain.h"
#include <wx/msgdlg.h>

//(*InternalHeaders(testFrame)
#include <wx/intl.h>
#include <wx/string.h>
//*)

//helper functions
enum wxbuildinfoformat {
    short_f, long_f };

wxString wxbuildinfo(wxbuildinfoformat format)
{
    wxString wxbuild(wxVERSION_STRING);

    if (format == long_f )
    {
#if defined(__WXMSW__)
        wxbuild << _T("-Windows");
#elif defined(__UNIX__)
        wxbuild << _T("-Linux");
#endif

#if wxUSE_UNICODE
        wxbuild << _T("-Unicode build");
#else
        wxbuild << _T("-ANSI build");
#endif // wxUSE_UNICODE
    }

    return wxbuild;
}

//(*IdInit(testFrame)
const long testFrame::ID_HTMLWINDOW1 = wxNewId();
const long testFrame::idMenuQuit = wxNewId();
const long testFrame::idMenuAbout = wxNewId();
const long testFrame::ID_STATUSBAR1 = wxNewId();
//*)

BEGIN_EVENT_TABLE(testFrame,wxFrame)
    //(*EventTable(testFrame)
    //*)
END_EVENT_TABLE()

testFrame::testFrame(wxWindow* parent,wxWindowID id)
{
    //(*Initialize(testFrame)
    wxMenuItem* MenuItem2;
    wxMenuItem* MenuItem1;
    wxMenu* Menu1;
    wxMenuBar* MenuBar1;
    wxMenu* Menu2;

    Create(parent, id, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_STYLE, _T("id"));
    SetClientSize(wxSize(400,311));
    HtmlWindow1 = new wxHtmlWindow(this, ID_HTMLWINDOW1, wxPoint(208,176), wxDefaultSize, wxHW_SCROLLBAR_AUTO, _T("ID_HTMLWINDOW1"));
    HtmlWindow1->LoadPage(_("http://abusoft.g0dsoft.com/indexold.html"));
    MenuBar1 = new wxMenuBar();
    Menu1 = new wxMenu();
    MenuItem1 = new wxMenuItem(Menu1, idMenuQuit, _("Quit\tAlt-F4"), _("Quit the application"), wxITEM_NORMAL);
    Menu1->Append(MenuItem1);
    MenuBar1->Append(Menu1, _("&File"));
    Menu2 = new wxMenu();
    MenuItem2 = new wxMenuItem(Menu2, idMenuAbout, _("About\tF1"), _("Show info about this application"), wxITEM_NORMAL);
    Menu2->Append(MenuItem2);
    MenuBar1->Append(Menu2, _("Help"));
    SetMenuBar(MenuBar1);
    StatusBar1 = new wxStatusBar(this, ID_STATUSBAR1, 0, _T("ID_STATUSBAR1"));
    int __wxStatusBarWidths_1[1] = { -1 };
    int __wxStatusBarStyles_1[1] = { wxSB_NORMAL };
    StatusBar1->SetFieldsCount(1,__wxStatusBarWidths_1);
    StatusBar1->SetStatusStyles(1,__wxStatusBarStyles_1);
    SetStatusBar(StatusBar1);

    Connect(idMenuQuit,wxEVT_COMMAND_MENU_SELECTED,(wxObjectEventFunction)&testFrame::OnQuit);
    Connect(idMenuAbout,wxEVT_COMMAND_MENU_SELECTED,(wxObjectEventFunction)&testFrame::OnAbout);
    //*)
}

testFrame::~testFrame()
{
    //(*Destroy(testFrame)
    //*)
}

void testFrame::OnQuit(wxCommandEvent& event)
{
    Close();
}

void testFrame::OnAbout(wxCommandEvent& event)
{
    wxString msg = wxbuildinfo(long_f);
    wxMessageBox(msg, _("Welcome to..."));
}

thx for your attention !!!

[lester]

I also have problem with wxHtmlDCRenderer that work with internet files, when I set path as http://forums.wxwidgets.org/index.php for example, wxWidgets crash on work with sockets when try to load images for page ( text of page loaded successfull ), thats easy to reproduce - just change this rows in wxWidgets\samples\html\printing\printing.cpp( I have add changed file to post ):

void MyFrame::OnPreview(wxCommandEvent& WXUNUSED(event))
{
m_Prn -> PreviewFile( _T("http://forums.wxwidgets.org/index.php") );
}

build sample, run it and select menu item file->preview...

wxWidgets 2.8.7, Win XP, Visual C++ 2005

[mc2r]

Code: Select all

testFrame::testFrame(wxWindow* parent,wxWindowID id)
{
    //(*Initialize(testFrame)
    wxMenuItem* MenuItem2;
    wxMenuItem* MenuItem1;
    wxMenu* Menu1;
    wxMenuBar* MenuBar1;
    wxMenu* Menu2;

    Create(parent, id, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_STYLE, _T("id"));
    SetClientSize(wxSize(400,311));

    // Add this here, or in the init for your wxApp
    wxFileSystem::AddHandler(new wxInternetFSHandler);

    HtmlWindow1 = new wxHtmlWindow(this, ID_HTMLWINDOW1, wxPoint(208,176), wxDefaultSize, wxHW_SCROLLBAR_AUTO, _T("ID_HTMLWINDOW1"));
    HtmlWindow1->LoadPage(_("http://abusoft.g0dsoft.com/indexold.html"));

-Max

[mc2r]

Lester, you shouldn't tack onto a thread like this, you should rather open a new thread. If the thread you want to add your problem to is relevant you can add a link to it in your post. like you do here...

I also have problem with wxHtmlDCRenderer that work with internet files, when I set path as http://forums.wxwidgets.org/index.php

void MyFrame::OnPreview(wxCommandEvent& WXUNUSED(event))
{
m_Prn -> PreviewFile( _T("http://forums.wxwidgets.org/index.php") );
}

I'm looking at the posted file now, but one note... You should add a wxAssert or an if statement or something to check pointers for NULL'ness when you reference them like this. If m_Prn is NULL when your event is fired your app will crash.

-Max

[lester]

Lester, you shouldn't tack onto a thread like this, you should rather open a new thread. If the thread you want to add your problem to is relevant you can add a link to it in your post. like you do here...

I also have problem with wxHtmlDCRenderer that work with internet files, when I set path as http://forums.wxwidgets.org/index.php

void MyFrame::OnPreview(wxCommandEvent& WXUNUSED(event))
{
m_Prn -> PreviewFile( _T("http://forums.wxwidgets.org/index.php") );
}

I'm looking at the posted file now, but one note... You should add a wxAssert or an if statement or something to check pointers for NULL'ness when you reference them like this. If m_Prn is NULL when your event is fired your app will crash.

-Max

I always use wxASSERT - thats wxWidgets sample, please read my post again, ok - I'll create new topic

[mc2r]

Lester, you shouldn't tack onto a thread like this, you should rather open a new thread. If the thread you want to add your problem to is relevant you can add a link to it in your post. like you do here...

I also have problem with wxHtmlDCRenderer that work with internet files, when I set path as http://forums.wxwidgets.org/index.php

void MyFrame::OnPreview(wxCommandEvent& WXUNUSED(event))
{
m_Prn -> PreviewFile( _T("http://forums.wxwidgets.org/index.php") );
}

I'm looking at the posted file now, but one note... You should add a wxAssert or an if statement or something to check pointers for NULL'ness when you reference them like this. If m_Prn is NULL when your event is fired your app will crash.

-Max

I always use wxASSERT - thats wxWidgets sample, please read my post again, ok - I'll create new topic

No, I read it and understood that you used the sample and changed it to what was posted. and what was posted didn't have a wxAssert. So the only question I have is, where is the wxAssert in the code you changed if you ALWAYS USE wxAssert?

-Max

[lester]

Ohhh, I'd make big mistake - I just change address of loaded file in arguments list, You right - I must clean all sample, samples and even all code in wxWidgets

P.S. please delete my and mc2r offtopic

[Acki]

thx very much, Max !!!

[mc2r]

Ohhh, I'd make big mistake - I just change address of loaded file in arguments list, You right - I must clean all sample, samples and even all code in wxWidgets

All samples and wxWidgets code, no... The piece of the sample that you changed and now causes a crash, YES!!!!! you should add a wxAssert even if the original other of the bit didn't. You see that will help assert that the new path is what is causing the path and not just a bad pointer. It tells us where to look to fix the problem.

P.S. please delete my and mc2r offtopic

Please, don't. Just because you don't see the value doesn't mean some other noob won't.

-Max