QtExamples | Examples of how to do many things in Qt

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QtExamples is a C++ library. QtExamples has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Examples of how to do many things in Qt

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QtExamples has a low active ecosystem.

It has 28 star(s) with 14 fork(s). There are 6 watchers for this library.

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Community Discussions

Trending Discussions on QtExamples

Error with Qt WebEngine : gpu_process_transport_factory.cc(642)] Switching to software compositing

Qt5 and QML: How to automatically input username and password using WebEngine Quick Nano Browser

QProcess and QLocalSocket - IPC messages aren't received

QUESTION

Error with Qt WebEngine : gpu_process_transport_factory.cc(642)] Switching to software compositing

Asked 2019-Nov-26 at 18:18

Background

Platform : windows 10
Qt Version : 5.12.1

I have to port a QML application that was initially done with Qt 4.7.4, using QML QtWebKit. This QML was pretty straightforward, it was just showing a local html. I read this web page on how to migrate QtWebKit.

So, after a couple of hours try an errors, I decided to do this qt example.

When I try to execute the application, I have this output :

...

ANSWER

Answered 2019-Nov-26 at 02:17

Any idea what I am doing wrong?

Those are not errors of Qt but of chromium that you must ignore them in many of the cases that in your particular case indicates that the application tries to use the GPU but for compatibility problems it will use the CPU (You should get those same errors if you run google chrome from the CMD and enable the flags to get the debug).

So obviate those errors since the code you provide is correct.

Would it be possible to stick with QtWebKit?

You can continue using Qt WebKit but there is no official support from Qt, you must compile it manually. The project is hosted in https://github.com/qtwebkit/qtwebkit.

Is QtWebEngine is the best solution just to render a simple html user guide?

The "best" is relative unless you indicate objective parameters that allow you to measure yourself in each technology / alternative. What I can point out to you is that it is the official option to render web pages, html, etc. that use HTML, js, etc.

Source https://stackoverflow.com/questions/59041792

QUESTION

Qt5 and QML: How to automatically input username and password using WebEngine Quick Nano Browser

Asked 2019-Nov-17 at 08:45

I am writing a small application using Qt and QML that uses the example in the Qt documentation WebEngine Quick Nano Browser.

In this example I am trying to access to my email. I can do it, but I am trying to enter username and password automatically so that I can instantly log into my emails.

Basically as an example, after launching the application (my email address is hard-coded) I can see the username page of gmail, but here I have to type my username to access to the next page that has the password::

Here I have to type my password:

Only after doing that I can access to my email.

The Expected result would be as soon as I run the application, I would like to go straight to my email without inputting username and password

The code that I am running is the following:

...

ANSWER

Answered 2019-Nov-17 at 03:36

Do not use the example WebEngine Quick Nano Browser as I see it unnecessary and only distract from the background objective.

The logic is to understand how google login works, in this case you must find a way to obtain the elements of the DOM using javascript for example through id, class, name, etc. and modify it according to the desired logic. Also note that the url changes so that in each one a different script must be executed.

Considering the above, the solution is:

Source https://stackoverflow.com/questions/58892666

QUESTION

QProcess and QLocalSocket - IPC messages aren't received

Asked 2019-Apr-19 at 08:36

Following the Fortune Client example.

Have a subclass of QLocalServer which starts the another application (client) using the Qprocess and this client will send some messages using the QLocalSocket. Only the first message from the client appears in the main (server) application that too only when the client process exits.

server app:

localserver.h

...

ANSWER

Answered 2019-Apr-01 at 14:58

Never use the waitXXX methods because they block the event loop inpidiendo that the signals are transmitted. In your case the data is obtained one by one but because no one consumes the information since the signal is not transmitted it accumulates in the buffer and only shows when the eventloop is not blocked showing all the text. So the solution in your case is not to use waitXXX but to use the signals:

Source https://stackoverflow.com/questions/55453576

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