diff options
Diffstat (limited to 'demos/spectrum/app/engine.h')
| -rw-r--r-- | demos/spectrum/app/engine.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/demos/spectrum/app/engine.h b/demos/spectrum/app/engine.h index 21867b3e53..ab5ae0d07c 100644 --- a/demos/spectrum/app/engine.h +++ b/demos/spectrum/app/engine.h @@ -64,10 +64,11 @@ #include <QDir> #endif -class QAudioInput; -class QAudioOutput; class FrequencySpectrum; -class QFile; + +QT_FORWARD_DECLARE_CLASS(QAudioInput) +QT_FORWARD_DECLARE_CLASS(QAudioOutput) +QT_FORWARD_DECLARE_CLASS(QFile) /** * This class interfaces with the QtMultimedia audio classes, and also with |