Qt5 WebKit未检测到NPAPI插件

Question

#include "mainwindow.h"
#include <QApplication>
#include <QtWebKit>
#include <QWebView>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    QWebView *view = new QWebView();
    QWebSettings::PluginsEnabled;
    view->load(QUrl("http://www.paulirish.com/demo/multi"));

    view->show();

    return a.exec();
}

I am trying to load a plugin in QtWebkit Webview but it isnt being loaded. I couldnt find the right path as mentioned Here , but it isnt loading. I have added Env. Variable QTWEBKIT_PLUGIN_PATH to System Variable & MOZ_PLUGIN_PATH was already in user variable, added by Foxit Reader. I tried placing the plugin dll file on both the directories corresponding to the Env. Variables but it isnt loading the plugin. After i palced the plugin in Moz_plugin_path, firefox was able to detect the plugin.

As for enabling the plugin in QTWebview i have tried using

QWebSettings::PluginsEnabled;

QWebSettings::globalSettings()->setAttribute(QWebSettings::PluginsEnabled,true);

view->page()->settings()->PluginsEnabled;

but found success with none of them, I am using Windows 8.1 and Qt 5.2

Answer 1

You should set the QWebSettings::PluginsEnabled attribute. The way you are doing it, nothing is happening.

Enable the attribute with the following code:

QWebSettings::globalSettings()->setAttribute(QWebSettings::PluginsEnabled, true);

Put this before your QWebView creation.

Refer to the documentation for more details:

QWebSettings Docs

Answer 2

i have been through exactly the same situation. what solved my problem was to install adobe flash player plugin for NPAPI. Modern web browsers like Google Chrome and Firefox are often distributed with builtin flash player plugin. So Chrome/Firefox works well does not ensure that you have the proper flash plugin installed properly systemwide, which is needed by Qt5WebKit to enable local plugin support for Flash content.

so, make sure the adobe flash player plugin for NPAPI is installed, and hope it would solve your problem.