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POQt example notepad program not displaying any controls
 

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  1. POQt example notepad program not displaying any controls
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    <p>I am following the Qt example listed in the QtSDK titled: "Getting Started Programming with Qt". My problem is that the program doesn't display any of the objects.</p> <p>My main.cpp looks like so: </p> <pre><code>#include &lt;QtGui&gt; #include &lt;notepad.h&gt; int main(int argv, char **args) { QApplication app(argv, args); QVBoxLayout layout; Notepad notepad(); QWidget window; window.setLayout(&amp;layout); window.show(); return app.exec(); } </code></pre> <p>The 'notepad.h' file: </p> <pre><code>#ifndef NOTEPAD_H #define NOTEPAD_H #include &lt;QtGui&gt; class Notepad : public QMainWindow { Q_OBJECT public: Notepad(); private slots: void open(); void save(); void quit(); private: QTextEdit *text_edit; QAction *open_action; QAction *save_action; QAction *exit_action; QMenu *file_menu; }; #endif // NOTEPAD_H </code></pre> <p>The 'notepad.cpp' file:</p> <pre><code>#include "notepad.h" Notepad::Notepad() { open_action = new QAction(tr("&amp;Open"), this); save_action = new QAction(tr("&amp;Save"), this); exit_action = new QAction(tr("&amp;Exit"), this); connect(open_action, SIGNAL(triggered()), this, SLOT(open())); connect(save_action, SIGNAL(triggered()), this, SLOT(save())); connect(exit_action, SIGNAL(triggered()), qApp, SLOT(quit())); file_menu = menuBar()-&gt;addMenu(tr("&amp;File")); file_menu-&gt;addAction(open_action); file_menu-&gt;addAction(save_action); file_menu-&gt;addSeparator(); file_menu-&gt;addAction(exit_action); text_edit = new QTextEdit; setCentralWidget(text_edit); setWindowTitle(tr("Notepad")); } void Notepad::open() { ... } void Notepad::save() { ... } void Notepad::quit() { } </code></pre> <p>Any help in resolving the matter would be much appreciated.</p> <p><strong>Edit</strong></p> <p>My original question asked why I was I was getting a compile time error for not implementing the "quit" function incase you are wondering :).</p>
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    1. USDarestium
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    1. COWhy there is no Notepad::quit() method in notepad.cpp ??!!
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      1. USKamran Amini
    2. CODid you forget to write the `quit()` code?
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      1. USVinayak Garg
    3. COOpps, fixed, now my problem seems to be that there is nothing contained in the window.
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      1. USDarestium
 

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