no matching function for call to 'QObject::connect(QSpinBox*&, <unresolved overloaded function type>, QSlider*&, void (QAbstractSlider::*)(int))' 这是怎么回事呢?从出错信息可以看出,编译器认为QSpinBox::valueChanged是一个 overloaded 的函数。我们看一下QSpinBox的文档发现,QSpinBox的确有两个信号: l...
no matching function for call to 'QObject::connect(QSpinBox*&, <unresolved overloaded function type>, QSlider*&, void (QAbstractSlider::*)(int))' 这是怎么回事呢?从出错信息可以看出,编译器认为QSpinBox::valueChanged是一个 overloaded 的函数。我们看一下QSpinBox的文档发现,QSpinBox的确有两个信号...
Calling a function as many times as possible in a given time interval I am trying to call the function test() as many times as possible in a given time interval. Here the function should be running for 15 seconds. However, the function doesn't stop running, and the Ende... ...
MAKE= for mk in gmake make; do if "$WHICH" $mk >/dev/null 2>&1; then MAKE=`"$WHICH" $mk` break fi done if [ -z "$MAKE" ]; then echo >&2 "You don't seem to have 'make' or 'gmake' in your PATH."echo >&2 "Cannot proceed."exit 1 ...
//Connect a signal to a pointer to qobject member function // QtPrivate::FunctionPointer<Func1>::Object返回发送信号的对象类型 template <typename Func1, typename Func2> static inline QMetaObject::Connection connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, ...
It is recommended to use cmake for building. After building with cmake, you can install it (install). With cmake, your project can either use cmake to include SARibbonBar or use qmake to include SARibbonBar.SARibbon provides two build methods: qmake and cmake. It also offers an ...
10016 Invalid function call. (since 100.0.0) 10017 Invalid error management. (since 100.0.0) 10018 Invalid cast. (since 100.0.0) 10019 Out of memory. (since 100.0.0) 10020 Unknown error. (since 100.0.0) Hydrography and ENC errors Errors that may occur when working with Hydrography and El...
varqt=require('node-qt'),app=newqt.QApplication,window=newqt.QWidget;// Prevent objects from being GC'dglobal.app=app;global.window=window;// Quirk: the virtual method paintEvent() is mapped into a callback setterwindow.paintEvent(function(){varp=newqt.QPainter();p.begin(window);p.draw...
Loads or retries loading metadata for the object asynchronously. Will retry loading the metadata if the object is failed to load. Will load the object if it is not loaded. Will not retry to load the object if the object is loaded. Will always call the done loading if this is called. Se...
第二个和第四个是函数指针,将模板参数PointerToMemberFunction变成函数的类型 connect的具体实现如下 template <typename Func1, typename Func2> static inline QMetaObject::Connection connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, ...