D:\QT_Project\ImgViewTool\mainwindow.cpp:27: error: invalid use of incomplete type 'class TImgWidget'..\mainwindow.cpp: In member function 'void MainWindow::recvImgShowSignal(QImage)':..\mainwindow.cpp:27:44: error: invalid use of incomplete type 'class TImgWidget' m_Image = new TImg...
QT: error: invalid use of incomplete type 'class Ui::Widget' , ui(new Ui::Widget) 错误处理办法 在QT中更改QWidget的对象名称后, 对应的源代码中类的名称变为: 转到对应的widget.cpp添加部分代码后报错如下: 将对象名称修改为提示的Widget后重新再编译,错误消除。
Qt invalid use of incomplete type ‘class QVariant’ Qt开发,从数据库中查询,在遍历结果集时,代码报错: invalid use of incomplete type ‘class QVariant’ 说是QVariant类的用法不对. QString sql = "select * from sysuser"; QSqlQuery query; query.exec(sql); while(query.next()){ QString id =...
Qt Demo, 原来项目可以正常运行.进过了一些修改和窗体的调整,再次运行提示: invalid use of incomplete type ‘class QDesktopWidget’ 提示比较怪异,一时看不出什么原因. 探索一番,找到了答案,其实就是修改之后,内容的引用没了,补上即可: #include <QDesktopWidget> 1....
修改QT项目作为模板,出现如下错误: error: invalid use of incomplete type 'class Ui::ConclisionDetect' 2020-10-16 16:20 −... 未完代码 0 1668 Android No static field XXX of type I in class Lcom/XXX/R$id错 2019-12-22 21:09 −问题复现: 问题原因: 出现这样的情况,你先检查你的依赖工...
QT: error: invalid use of incomplete type 'class Ui::Widget' , ui(new Ui::Widget) 错误处理办法 2020-05-31 17:22 −... 小牛铺 0 6691 Choose the WinForms UI Type 选择 WinForms UI 类型 2019-12-17 16:16 −In this lesson, you will learn how to change the UI Type of the Win...
D:\Qt\Qt5.10.0\5.10.0\mingw53_32\include/QtCore/qlist.h:462:28: error: invalid use of incomplete type'class QVariant'current->v =newT(*reinterpret_cast<T*>(src->v)); ^ In file included from D:\Qt\Qt5.10.0\5.10.0\mingw53_32\include\QtCore/qobject.h:54:0, ...
cpp:63:30: error: invalid use of incomplete type ‘X509 {aka struct x509_st}’ return qHashBits(x509->sha1_hash, SHA_DIGEST_LENGTH, seed); ^ In file included from /usr/local/include/openssl/crypto.h:131:0, from /usr/local/include/openssl/comp.h:59, from /usr/local/include/...
cpp:15:22: error: variable has incomplete type 'QString' QString bar(QString) { return QString(); } ^ ../test2/main.cpp:8:7: note: forward declaration of 'QString' class QString; ^ ../test2/main.cpp:15:33: error: invalid use of incomplete type 'QString' QString bar(QString...
invalid use of incomplete type 'class QKeyEvent' 原因分析: 没有报找不到该类,是因为使用了类型的前置声明,表示存在这个类: classQKeyEvent; 报类不完整,说明需要添加这个类的实现: #include<QKeyEvent> 6.3 摄像机移动按键,移动突变 6.3.1 有问题的方案 ...