a1356467的博客

1 paint/qss如果设置了qss，那么QPaintEvent就不会生效2 setProperty/setStyleSheetsetStyleSheet之后，子控件设置property的样式则无法生效

目录1 声明2 初始化3 使用1 声明//A.hextern QMap<ToolTask, QString> KToolTaskTxt;2 初始化全局区域初始化//A.cppQMap<ToolTask, QString> KToolTaskTxt={ {I_ADD_SCREW,"add screw"}, {I_ADD_ARROW,"add arrow"}, {I_ADD_LABEL,"add label"}, {I_MEASURE_LI

目录1 设置回调函数2 重载 ctkCommand3 重载 vtkInteractorStyleImage1 设置回调函数QVTKOpenGLNativeWidget* m_vtk_gl_widget=new QVTKOpenGLNativeWidget(this);vtkSmartPointer<vtkRenderWindowInteractor> iron=m_vtk_gl_widget->GetInteractor(); //NON Releaseiron->A

1setAttribute(Qt::WA_StyledBackground,true);2 QStyleOption opt; opt.init(this); QPainter p(this); style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);

Unable to find a valid OpenGL 3.2 or later implementation. Please update your video card driver to the latest version. If you are using Mesa please make sure you have version 11.2 or later and make sure your driver in Mesa supports OpenGL 3.2 such as llvmp

configure时关于QT的都勾选上YES

vtk安装https://www.cnblogs.com/haijian/p/12417017.htmlQT路径https://blog.youkuaiyun.com/EuegneChen/article/details/80197555ununtu/home/robot/Qt5.13.0/5.13.0/gcc_64/lib/cmake/Qt5

mybtn->setStyleSheet("QPushButton::menu-indicator{image:none}");

tr()代码中，需要翻译显示的文本用tr包裹lable.setText(tr("xx"));pro添加.ts文件TRANSLATIONS += tr_zh.ts 工具 -> 外部 -> 语言专家 ->更新翻译(lupdate)更新翻译qt linguistqt安装目录下启动linguist，然后打开.ts文件，翻译，保存工具 -> 外部 -> 语言专家 ->发布翻译(lupdate)main加载translator QTranslator

1.多个头文件对一个类进行重复声明a.hclass A{};b.hclass B{};c.cpp#include "a.h"#include "b.h"2.头文件未加 #ifdefine…#ifndef A_H#define A_H...#endif

删掉包含的子项目，然后重新include

opencv vs2019 videoCapture set分辨率1600*1200设置为1600-1200，读取时变成了1280-960，在linux上是正常的，到了win10不知怎得就设置不了了。解决方法：cv::VideoCapture.open(index, cv:CAP_DSHOW);参考https://answers.opencv.org/question/195388/video-capture-resolution-issue-on-windows/...

打包好的程序点开报错0xc000007b——应用程序无法正常启动解决方案1把C:\Windows\SysWOW64添加到环境变量解决方案2拷贝64位的msvcr120.dll，msvcr100.dll，msvcp120.dll和vccorlib120.dll 到目录C:\Windows\SysWOW64下参考https://blog.youkuaiyun.com/kone0611/article/details/79238139...

解决方法#include <QtMath>

解决方法：工具->选项->构建与运行把使用jom代替nmake的勾选取消即可运行。（后面把勾选打回去也还是可以运行，但是新开项目就得重新取消了）转载自 https://blog.youkuaiyun.com/qq949017453/article/details/80472075...

LIBS += -LC:\03_qtCode\01_component\01_Fit3D\build\release\ -lFit3DD

LIBS += C:\02_Install\04_opencv\opencv-mingw\install\x64\mingw\lib\libopencv_calib3d451.dll.a

sudo /usr/bin/vmware-installer --uninstall-component=vmware-player

解决方法echo $C_INCLUDE_PATHecho $CPLUS_INCLUDE_PATH#然后将上面两个路径全部设为空export C_INCLUDE_PATH=export CPLUS_INCLUDE_PATH=