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POQT: unresolved external symbol while trying to get webpage source code
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  1. POQT: unresolved external symbol while trying to get webpage source code
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    copied!<p>I started developing with Qt and I'm trying to get webpage source code. Here's what I have :</p> <p>mainwindow.cpp</p> <pre><code>#include "mainwindow.h" #include "ui_mainwindow.h" #include &lt;QString&gt; #include &lt;QNetworkRequest&gt; #include &lt;QNetworkReply&gt; #include &lt;QNetworkAccessManager&gt; #include &lt;QUrl&gt; MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow) { ui-&gt;setupUi(this); } MainWindow::~MainWindow() { delete ui; } /**/ class GetHTMLSource : public QObject { Q_OBJECT public: GetHTMLSource(); void GetSource(); public slots: void GetDone(QNetworkReply*); private: QNetworkAccessManager* NetManager; }; GetHTMLSource::GetHTMLSource() { NetManager = new QNetworkAccessManager(this); connect(NetManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(GetDone(QNetworkReply*))); } void GetHTMLSource::GetSource() { NetManager-&gt;get(QNetworkRequest(QUrl("http://stackoverflow.com"))); } void GetHTMLSource::GetDone(QNetworkReply* ReplyIn) { QByteArray DataIn=ReplyIn-&gt;readAll(); QString DataString(DataIn); //process str any way you like! } /**/ void MainWindow::on_pushButton_clicked() { GetHTMLSource Test; Test.GetSource(); } </code></pre> <p>mainwindow.h</p> <pre><code>#ifndef MAINWINDOW_H #define MAINWINDOW_H #include &lt;QMainWindow&gt; namespace Ui { class MainWindow; } class MainWindow : public QMainWindow { Q_OBJECT public: explicit MainWindow(QWidget *parent = 0); ~MainWindow(); private slots: void on_pushButton_clicked(); private: Ui::MainWindow *ui; }; #endif // MAINWINDOW_H </code></pre> <p>.pro</p> <pre><code>QT += core gui TARGET = TestGetPageSource TEMPLATE = app SOURCES += main.cpp\ mainwindow.cpp HEADERS += mainwindow.h FORMS += mainwindow.ui QT += network </code></pre> <p>Errors are :</p> <blockquote> <p>mainwindow.obj:-1: error:LNK2001: unresolved external symbol "public: virtual struct QMetaObject const * __thiscall GetHTMLSource::metaObject(void)const " (?metaObject@GetHTMLSource@@UBEPBUQMetaObject@@XZ)</p> <p>mainwindow.obj:-1: error:LNK2001: unresolved external symbol "public: virtual void * __thiscall GetHTMLSource::qt_metacast(char const *)" (?qt_metacast@GetHTMLSource@@UAEPAXPBD@Z)</p> <p>mainwindow.obj:-1: error:LNK2001: unresolved external symbol "public: virtual int __thiscall GetHTMLSource::qt_metacall(enum QMetaObject::Call,int,void * *)" (?qt_metacall@GetHTMLSource@@UAEHW4Call@QMetaObject@@HPAPAX@Z)</p> </blockquote>
 

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