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I need to get title of webpage

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  • jsulmJ jsulm

    @Armin Did you install Qt WebEngine as well? It is not part of default installation. You can use Qt Maintenance Tool to install Qt WebEngine.

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    Armin
    wrote on last edited by
    #9

    @jsulm
    How can i install that ?

    jsulmJ 1 Reply Last reply
    0
    • A Armin

      @jsulm
      How can i install that ?

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #10

      @Armin If you used Qt Online INstaller then you already have the Qt Maintenance Tool - see in Qt installation directory.

      https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • A Offline
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        Armin
        wrote on last edited by
        #11

        My maintance tool problem solved.
        but i dont know how i must get title of a html page.

        jsulmJ 1 Reply Last reply
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        • A Armin

          My maintance tool problem solved.
          but i dont know how i must get title of a html page.

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #12

          @Armin You mean you want to extract title from:

          <head>
          	<title>General and Desktop | Qt Forum</title>
          

          right?
          Then you can just sent a GET request using http://doc.qt.io/qt-5/qnetworkaccessmanager.html and then parse the response (you can use a regular expression to extract the title from <title>...</title>).
          From the link above:

          QNetworkRequest request;
          request.setUrl(QUrl("http://qt-project.org"));
          request.setRawHeader("User-Agent", "MyOwnBrowser 1.0");
          
          QNetworkReply *reply = manager->get(request);
          connect(reply, SIGNAL(readyRead()), this, SLOT(slotReadyRead()));
          connect(reply, SIGNAL(error(QNetworkReply::NetworkError)),
                  this, SLOT(slotError(QNetworkReply::NetworkError)));
          connect(reply, SIGNAL(sslErrors(QList<QSslError>)),
                  this, SLOT(slotSslErrors(QList<QSslError>)));
          

          https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • jsulmJ jsulm

            @Armin You mean you want to extract title from:

            <head>
            	<title>General and Desktop | Qt Forum</title>
            

            right?
            Then you can just sent a GET request using http://doc.qt.io/qt-5/qnetworkaccessmanager.html and then parse the response (you can use a regular expression to extract the title from <title>...</title>).
            From the link above:

            QNetworkRequest request;
            request.setUrl(QUrl("http://qt-project.org"));
            request.setRawHeader("User-Agent", "MyOwnBrowser 1.0");
            
            QNetworkReply *reply = manager->get(request);
            connect(reply, SIGNAL(readyRead()), this, SLOT(slotReadyRead()));
            connect(reply, SIGNAL(error(QNetworkReply::NetworkError)),
                    this, SLOT(slotError(QNetworkReply::NetworkError)));
            connect(reply, SIGNAL(sslErrors(QList<QSslError>)),
                    this, SLOT(slotSslErrors(QList<QSslError>)));
            
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            Armin
            wrote on last edited by
            #13

            @jsulm Thanks
            But i want to get title and i don't need to set. i need get and no set

            jsulmJ 1 Reply Last reply
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            • A Armin

              @jsulm Thanks
              But i want to get title and i don't need to set. i need get and no set

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #14

              @Armin Where did I say anything about set?

              https://forum.qt.io/topic/113070/qt-code-of-conduct

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              • jsulmJ jsulm

                @Armin Where did I say anything about set?

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                Armin
                wrote on last edited by Armin
                #15

                @jsulm Thanks
                In this line if i am not mistaken you set the title
                request.setRawHeader("User-Agent", "MyOwnBrowser 1.0");
                But i want to store the title in a QString

                jsulmJ 1 Reply Last reply
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                • A Armin

                  @jsulm Thanks
                  In this line if i am not mistaken you set the title
                  request.setRawHeader("User-Agent", "MyOwnBrowser 1.0");
                  But i want to store the title in a QString

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by jsulm
                  #16

                  @Armin No this line does not set any titles, why do you think so? Did you read the documentation? You can remove this line. It is not needed for your use-case.

                  https://forum.qt.io/topic/113070/qt-code-of-conduct

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                  • jsulmJ jsulm

                    @Armin No this line does not set any titles, why do you think so? Did you read the documentation? You can remove this line. It is not needed for your use-case.

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                    Armin
                    wrote on last edited by
                    #17

                    @jsulm Thanks

                    now , all i want is to get url in title ( <title> ... </title> ) and put it on QString.

                    jsulmJ 1 Reply Last reply
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                    • A Armin

                      @jsulm Thanks

                      now , all i want is to get url in title ( <title> ... </title> ) and put it on QString.

                      jsulmJ Offline
                      jsulmJ Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on last edited by
                      #18

                      @Armin You can use a regular expression after you got the response from the server to extract the title.

                      https://forum.qt.io/topic/113070/qt-code-of-conduct

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                      • jsulmJ jsulm

                        @Armin You can use a regular expression after you got the response from the server to extract the title.

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                        Armin
                        wrote on last edited by
                        #19

                        @jsulm Thanks
                        If that file isn't html , and be mp4 or pdf
                        So what do i do ?

                        jsulmJ 1 Reply Last reply
                        0
                        • A Armin

                          @jsulm Thanks
                          If that file isn't html , and be mp4 or pdf
                          So what do i do ?

                          jsulmJ Offline
                          jsulmJ Offline
                          jsulm
                          Lifetime Qt Champion
                          wrote on last edited by
                          #20

                          @Armin Sorry, but you asked how to get the title of a web page, right?
                          What do you want to do with mp4 or pdf?

                          https://forum.qt.io/topic/113070/qt-code-of-conduct

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                          • jsulmJ jsulm

                            @Armin Sorry, but you asked how to get the title of a web page, right?
                            What do you want to do with mp4 or pdf?

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                            Armin
                            wrote on last edited by
                            #21

                            @jsulm Thanks
                            Right , i asked about webpage
                            How can i name of download file?
                            Thanks

                            jsulmJ 1 Reply Last reply
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                            • A Armin

                              @jsulm Thanks
                              Right , i asked about webpage
                              How can i name of download file?
                              Thanks

                              jsulmJ Offline
                              jsulmJ Offline
                              jsulm
                              Lifetime Qt Champion
                              wrote on last edited by jsulm
                              #22

                              @Armin The name of the file you're downloading is already in the URL, isn't it? Usually you know it in advance.
                              Like: http://download.qt.io/official_releases/online_installers/qt-unified-linux-x64-online.run
                              File name is: qt-unified-linux-x64-online.run
                              Or do you want to know which files you can download from a web site? Then look for for something like:

                              <a href="http://download.qt.io/official_releases/online_installers/qt-unified-linux-x64-online.run">Qt Online Installer for Linux (64-bit)</a>
                              

                              https://forum.qt.io/topic/113070/qt-code-of-conduct

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                              • jsulmJ jsulm

                                @Armin The name of the file you're downloading is already in the URL, isn't it? Usually you know it in advance.
                                Like: http://download.qt.io/official_releases/online_installers/qt-unified-linux-x64-online.run
                                File name is: qt-unified-linux-x64-online.run
                                Or do you want to know which files you can download from a web site? Then look for for something like:

                                <a href="http://download.qt.io/official_releases/online_installers/qt-unified-linux-x64-online.run">Qt Online Installer for Linux (64-bit)</a>
                                
                                A Offline
                                A Offline
                                Armin
                                wrote on last edited by
                                #23

                                @jsulm Thanks
                                I find answer. i use QUrl

                                1 Reply Last reply
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