Using QWebkit for windows with mingw

JKSH

@Thank-You See if you can use one of the pre-built snapshots of the community version of Qt WebKit: https://download.qt.io/snapshots/ci/qtwebkit/5.212/latest/qtwebkit/

Thank You

@JKSH I used these precompiled libraries as said in mentioned links. (https://forum.qt.io/topic/119469/webkit-for-mingw-how-to-build)

I tried download it's repo but couldn't as it shows errors after some time of fetching

artwaw

@Thank-You when using precompiled ones you don't need to build them, right? That's the whole point. Just grab the binaries, include, go.

Thank You

@artwaw
Yes sir, I did that. Above mentioned errors are produced by using precompiled binaries

That method din't work so I was thinking of building but couldn't clone the repo.

Are there other options with QT with mingw and windows. I don't need any support for linux

artwaw

@Thank-You How did you install those precompiled binaries? Can you show your .pro file? It looks like those are not placed correctly, hence the fail.

Thank You

@artwaw

How did you install those precompiled binaries?

I just copied all files and moved to C:/Qt/Qt5.12.8/5.12.8/mingw73_32/ for 32 bit and on 64 bit C:/Qt/Qt5.12.8/5.12.8/mingw73_32/

web.pro

QT       += core gui webkitwidgets

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++11

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    main.cpp \
    mainwindow.cpp

HEADERS += \
    mainwindow.h

FORMS += \
    mainwindow.ui

mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include<QWebView>
#include<QtWebKit/QtWebKit>
#include<QtWebChannel/QWebChannel>
#include<QVBoxLayout>


QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private:
    Ui::MainWindow *ui;
     QWebView *view ;
     QVBoxLayout *layout;
     QWidget *wid;
};
#endif // MAINWINDOW_H

mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include<QHBoxLayout>

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    wid = new QWidget();
    layout = new QVBoxLayout(wid);


    view = new QWebView(this);
    view->load(QUrl("https://google.com"));
    layout->addWidget(view);

    wid->setLayout(layout);
    setCentralWidget(wid);
}

MainWindow::~MainWindow()
{
    delete ui;
}

I hope it's correct 😂😂😂

artwaw

@Thank-You said in Using QWebkit for windows with mingw:

I just copied all files and moved to C:/Qt/Qt5.12.8/5.12.8/mingw73_32/ for 32 bit and on 64 bit C:/Qt/Qt5.12.8/5.12.8/mingw73_32/

what

artwaw

@Thank-You also if I am not mistaken you need not only webkitwidgets - I have a program that uses webkit as w page viewer, written some time ago, but its pro file had to have Qt += webkitwidgets webkit together to work properly. I am not certain if this might be the case but please try, as I said it was some time ago.

Thank You

@artwaw said in Using QWebkit for windows with mingw:

you need not only webkitwidgets

Sorry, I was trying to tweak things if it will work after you asked about .pro file. I had actually have both

what

What Should I do?
Isn't it correct.
https://forum.qt.io/topic/119469/webkit-for-mingw-how-to-build/18

artwaw

@Thank-You Just to make sure: you copied 32bit files to 32bit mingw at mingw73_32 (which makes sense) and then you copied 64bit files to 32bit mingw folder, possibly overwriting 32bit libraries copied previously?

Thank You

@artwaw
Single option is given:
qtwebkit-Windows-Windows_10-Mingw73-Windows-Windows_10-X86_64.7z

So I copied same things to both directories.

This is bin folder. It doesn't have any differences

and others are also same. Files aren't seperated

artwaw

@Thank-You said in Using QWebkit for windows with mingw:

X86_64.7z

Those are 64bit binaries. They will not work if you compile for 32bit target.

Thank You

@artwaw

Ok But compiling with 64 bit also gives error on both debug and release.(Mentioned at the main post)
What about it?
Where can I get 32bit binaries?

Christian Ehrlicher

@Thank-You said in Using QWebkit for windows with mingw:

Where can I get 32bit binaries?

On the same link from above I would guess.

artwaw

@Thank-You said in Using QWebkit for windows with mingw:

But compiling with 64 bit also gives error on both debug and release.(Mentioned at the main post)

Hardly a surprise if you did not copy the 64bit binaries to the 64bit part of Qt tree.

Thank You

@artwaw
I tried using windows 7 32bit binaries in 32 bit and it compiled but shows message

The program has unexpectedly finished.
 The process was ended forcefully.

I couldn't make it working

artwaw

@Thank-You You can try to use a Dependency Walker tool to identify what's missing.

Thank You

@artwaw
I used it. Found out libxml2-2.dll libxslt-1.dll were not present after running windeployqt. So I copied them to executable directory.
After that it shows this error.

JKSH

@Thank-You said in Using QWebkit for windows with mingw:

Qt5WebKitWidgets.dll is looking for QtPrivate::argToQString(QStringView), which is present in recent versions of Qt Core.

It sounds like the latest Qt WebKit binaries are built against Qt 5.14:

Can you update to Qt 5.14 or Qt 5.15?

Thank You

@JKSH
Hey, I have been using Qt5.12.8 and has other dependencies too.
Will code compiling in Qt 5.12.8 would compile in QT 5.15 ???