[Solved] cannot include QVideoWidget

[Timmoth]

hi all, i keep getting the error:
C1083: Cannot open include file: 'QVideoWidget': No such file or directory

forgive me if the answer is obvious - i am new to Qt.

Regards, Tim.

[SGaist]

Hi,

Did you add

@QT += multimedia@

in your pro file ?

[Timmoth]

yes, i have it all on one line though - i dont suppose that makes a difference ?
@QT += core gui multimedia@

[SGaist]

Qt 5 ?

Then you might be missing

@QT += widgets@

[Timmoth]

well i do have that in :
@
QT += core gui multimedia
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

SOURCES +=
main.cpp

HEADERS +=

@

(Thats my entire .pro file)

[tomma]

QVideoWidget is found in QtMultimediaWidgets:
@QT += multimediawidgets@

[Timmoth]

my pro file now looks like this :
@
QT += core gui
QT += multimediawidgets
QT += multimedia
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

SOURCES +=
main.cpp

HEADERS +=
@
yet the error is still occurring -
for reference my source code is :
@
#include <QApplication>
#include <QtCore>
#include <QWidget>
#include <QtMultimedia>
#include <QMediaPlayer>
#include <QVideoWidget>

int main(int argc, char *argv[])
{
QApplication app(argc, argv);

QMediaPlayer * player = new QMediaPlayer;

QMediaPlaylist* playlist = new QMediaPlaylist(player);
playlist->addMedia(QUrl("C:/Users/Public/Videos/Sample Videos/Wildlife.wmv"));

QVideoWidget* videoWidget = new QVideoWidget;
player->setVideoOutput(videoWidget);

videoWidget->show();
playlist->setCurrentIndex(1);
player->play();
return app.exec();

}

@

[SGaist]

Did you re-run qmake once you made the modifications to your pro file ?

[Timmoth]

facepalm
sorry for wasting your time - i am very new to Qt.

Regards, Tim.

[SGaist]

No worries, this happen all the time even to experienced users

Happy coding !