QPdfView: No such file or directory

[Jayakrishna]

Hello everyone, I am try to use QPdfView it is showing fatal error can anyone resolve it
my .pro file

QT       += core gui bluetooth pdf

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++17

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    main.cpp \
    mainwindow.cpp

HEADERS += \
    mainwindow.h

FORMS += \
    mainwindow.ui

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QPdfDocument>
#include <QPdfView>
#include <QVBoxLayout>
#include <QPushButton>
#include <QFileDialog>

QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private slots:
    void openPDF();

private:
    Ui::MainWindow *ui;
    QPdfDocument *pdfDocument;
    QPdfView *pdfView;
    QVBoxLayout *layout;
    QPushButton *openButton;
};

#endif // MAINWINDOW_H

D:\QTProjects\Previwer\Pdfviewer\mainwindow.h:6: error: QPdfView: No such file or directory
In file included from debug\moc_mainwindow.cpp:9:
debug../../../mainwindow.h:6:10: fatal error: QPdfView: No such file or directory
6 | #include <QPdfView>
| ^~~~~~~~~~

[Christian Ehrlicher]

What Qt version do you use?

[Jayakrishna]

Qt 6.7.2

[Christian Ehrlicher]

And did you install the pdf module (don't know if this needed) and do you find QPdfView in the Qt includes folder?

[Axel Spoerl]

For CMake you need to link Qt::PdfWidgets.
Not entirely sure for qmake, but it’s probably QT+=pdfwidgets

[JonB]

@Axel-Spoerl said in QPdfView: No such file or directory:

Not entirely sure for qmake, but it’s probably QT+=pdfwidgets

Yes, the Qt5.15 example at https://doc.qt.io/qt-5/qtpdf-pdfviewer-pdfviewer-pro.html shows this and is what @Jayakrishna should follow for qmake. An example apparently for Qt6 at https://code.qt.io/cgit/qt/qtwebengine.git/tree/examples/pdfwidgets/pdfviewer?h=6.7 shows same, and has both a .pro and a CMakeLists.txt.

I don't use Qt6, but given that the OP is at Qt 6.7.2 shouldn't they be using cmake rather than qmake/.pro file?

[SGaist]

@JonB cmake is indeed recommended for new projects. qmake is in maintenance mode and won't receive new features.

[JonB]

@SGaist Yes, it was a "rhetorical" question ;-)

[Jayakrishna]

@Axel-Spoerl Thanks, finally my code is working