Qt教程(C++ GUI Qt 4)中,第15章例程,tripserver编译出错,提示是:“is not a member of ‘std’””错误。 错误原因是:C++标准库实现有问题,解决方法如下: 在主源代码中加入:#include <stddef.h> 然后出错的地方,去掉 "std::" 编译通过。
按提示的意思为QString没有tolnt这个成员但是QString有这个成员函数,inttoInt(bool*ok= ,intbase= )const所以你看看是不是函数拼写错误,或者是把函数当作数据成员用了
#include <QtGui/QDateEdit> 为 #include <QCalendarWidget> #include <QComboBox> #include <QDateEdit> --->编译遇到如下错误: 1 error: 'UnicodeUTF8' is not a member of 'QApplication' 原因是:QCoreApplication::UnicodeUTF8已被弃用 解决方案如下: 修改 1 setText(QApplication::translate("MainWi...
error: ‘__s_getMD5Sum’ is not a member of ‘boost::shared_ptr<const test::gps_<std::allocator<void> error: ‘_s_getMD5Sum’ is not a member of ‘boost::shared_ptr<const test::gps<std::allocator > >’ return M::__s_getMD5Sum().c_str(); 解决: 把void gpsCallback( test:...
QTxlsx是一个基于Qt框架的库,用于读写Microsoft Excel(XLSX)文件。它为Qt开发者提供了一种方便的方式来处理Excel数据,无需依赖于Microsoft Office或其他的第三方库如LibreOffice或Apache POI。这个库适用于Qt ... 在qt中使用libXL LibXL是一个可以读写Excel文件的库。它不需要Microsoft Excel和。net框架,结合了易于...
[with T = QVariant]’ /usr/src/qgis/qgis/tests/src/core/testqgsexpression.cpp:231: instantiated from here /usr/include/qt4/QtCore/qmetatype.h:200: error: ‘qt_metatype_id’ is not a member of ‘QMetaTypeId<QVariant>’ make[2]: *** [tests/src/core/CMakeFiles/qgis_expressiontest...
将#include<QtGui/QApplication>改为#include <QApplication>,问题解决 3、error: 'class QString' has no member named 'toAscii,解决方法: toAscii替换为toLatin1或者qPrintable(),或者toUtf8; 4、error: 'setCodecForCStrings' is not a member of 'QTextCodec',问题解决 ...
compiling fails with the error " ‘endl’ is not a member of ‘Qt’ " i can get over this by replacing all Qt::endl with "\n". on Ubuntu 20.04.1 I had to manually add libilmbase12_2.2.0-11ubuntu2_amd64.deb and libopenexr22_2.2.0-10ubuntu2_amd64.deb to run the program. ...
-- Could NOT find WrapSystemFreetype (missing: __freetype_found) (Required is at least version "2.2.0") -- Could NOT find Fontconfig (missing: Fontconfig_LIBRARY Fontconfig_INCLUDE_DIR) -- Could NOT find gbm (missing: gbm_LIBRARY gbm_INCLUDE_DIR) -- Could NOT find WrapSystemHarfbuz...
Invokes the selector on the current instance and if the obj is not null, it passes this as its single parameter. (Inherited from NSObject) PerformSelector(Selector, NSObject, NSObject) (Inherited from NSObject) PerformSelector(Selector, NSObject) (Inherited from NSObject) PerformSelect...