我正在嘗試使用我自己的cmake文件而不是隨附的qmake .pro文件來編譯Qt中的音頻記錄器示例,並且我正在接收以下錯誤:Qt/CMake:在標識符'slots'`之前缺少':'
qtaudiorecorder\audiorecorder.h(63) : error C2146: syntax error : missing ':' before identifier 'slots'
我CMakeFile:
find_package(Qt5 REQUIRED COMPONENTS multimedia widgets)
set(CMAKE_AUTOMOC ON)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
find_package(Qt5Widgets REQUIRED)
find_package(Qt5Multimedia REQUIRED)
add_definitions(-DQT_NO_KEYWORDS)
add_executable(audio_recorder audiorecorder.cpp main.cpp qaudiolevel.cpp qaudiolevel.h audiorecorder.h audiorecorder.ui audiorecorder_small.ui)
qt5_use_modules(audio_recorder Widgets Multimedia)
audiorecorder.h:
#ifndef AUDIORECORDER_H
#define AUDIORECORDER_H
#include <QMainWindow>
#include <QMediaRecorder>
#include <QUrl>
QT_BEGIN_NAMESPACE
namespace Ui { class AudioRecorder; }
class QAudioRecorder;
class QAudioProbe;
class QAudioBuffer;
QT_END_NAMESPACE
class AudioRecorder : public QMainWindow
{
Q_OBJECT
public:
AudioRecorder(QWidget *parent = 0);
~AudioRecorder();
public slots:
void processBuffer(const QAudioBuffer&);
private slots:
void setOutputLocation();
void togglePause();
void toggleRecord();
void updateState(QMediaRecorder::State);
void updateProgress(qint64 pos);
void displayErrorMessage();
private:
Ui::AudioRecorder *ui;
QAudioRecorder *audioRecorder;
QAudioProbe *probe;
bool outputLocationSet;
};
#endif // AUDIORECORDER_H
我不明白爲什麼我不能用我的cmake文件編譯Qt示例(它用qmake編譯得很好)。
事實上,當定義'-DQT_NO_KEYWORDS'時,必須使用'Q_SLOTS'而不是'slots','Q_SIGNALS'而不是'signals'。 –