231 | using PromiseType = typename QtPrivate::ArgResolver<Function>::PromiseType; | ^~~~ C:/Qt/6.3.0/mingw_64/include/QtConcurrent/qtconcurrentstoredfunctioncall.h:232:17: error: no type named 'PromiseType' in 'struct QtPrivate::ArgResolver<MainWindow*>' 232 | return (new StoredFunction...
在value_type中没有名为boost::shared_ptr的类型 、、、 我试图创建一个元组向量,然后从函数中返回这个向量,但我得到了大量的错误,这些错误似乎与我将pcl::PointCloudColorHandler作为参数传递到元组有关。具体而言,相关错误是: error: no type named 'value_type' in 'boost::shared_ptr<pcl::visualization::P...
no template named 'auto_ptr' in namespace 'std' host:~ user$ cat ~/Library/Logs/Homebrew/qt/02.make | show-the-relevant-sections /Library/Developer/CommandLineTools/usr/bin/clang++ -c -include.pch/QtLocation/c++_x86_64 -pipe -stdlib=libc++ -O3 -std=c++1z -fapplication-extension -arc...
You can save the current layout of the dockmanager into a named perspective to make your own custom perspective. Later you can simply select a perspective from the perspective list to quickly switch the complete main window layout. Opaque and non-opaque splitter resizing The advanced docking ...
断点调试其实并不是多么复杂的一件事，简单的理解无外呼就是打开浏览器，打开sources找到js文件，在行号...
Qt打包发布,有很多办法,Qt5以后提供了打包工具windeployqt(linux上为linuxdeployqt,mac上为macdeployqt)可以很方便的将应用程序打包,使用下来发现也不是万能的,有时候会多打包一些没有依赖的文件,有时候又会忘记打包一些插件尤其是用了qml的情况下,而且不能识别第三方库,比如程序依赖ffmpeg,则对应的库需要自行拷贝,终...
This function sets the value of the environment variable named varName. It will create the variable if it does not exist. It returns 0 if the variable could not be set. Note: qputenv() was introduced because putenv() from the standard C library was deprecated in VC2005 (and later versio...
还是直接复制随书原码 QMediaPlayer player; player.setVideoOutput(&item); player.setMedia(QUrl::fromLocalFile("../myvideoitem/video.wmv"));都会报错main.cpp:17:12: No member named 'setMedia' in 'QMediaPlayer'想问问如何解决这个问题或者Qt6中setmedia函数的替代是哪个? https:/...
Signal to Named Member Function Connections connect(thisObject, functionName) In this form of theconnect()function, the first argument is the object that will be bound to the variable,this, when a function is invoked in response to the signal. The second argument specifies the name of a func...
link /NOLOGO /DYNAMICBASE /NXCOMPAT /DEBUG /SUBSYSTEM:WINDOWS "/MANIFESTDEPENDENCY:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*' processorArchitecture='*'" /MANIFEST:embed /OUT:debug\boxes.exe @C:\Users\tansh\AppData\...