How to create a OpenGL widget in Qt and VIsual Studio?-CodePudding

I'm trying to create a OpenGL widget using Qt 6.4 and VStudio 2022, i have enable the Qt OpenGL widget under the modules, but i still getting a lot of compile errors:

LNK2019 unresolved external symbol "__declspec(dllimport) public: __cdecl QOpenGLWidget::QOpenGLWidget(class QWidget *,class QFlags<enum Qt::WindowType>)" (__imp_??0QOpenGLWidget@@QEAA@PEAVQWidget@@V?$QFlags@W4WindowType@Qt@@@@@Z) referenced in function "public: void __cdecl Ui_MainWindowClass::setupUi(class QMainWindow *)" (?setupUi@Ui_MainWindowClass@@QEAAXPEAVQMainWindow@@@Z)

I'm testing in a 'clean' project containing nothing more than a OpenGlWidget added trough QT Designer.

The includes i have added:

#include <QtWidgets>
#include <QtOpenGL>

My project configuration:

I have also tried adding, into Linker -> General -> Additional Library directories:

D:\Qt\6.4.0\msvc2019_64\lib;

And at Linker -> Input -> Additional Dependencies:

Qt6OpenGL.lib

But i continue getting the same errors.

I have installed everything in the Qt Maintenance tool, what i'm missing?

CodePudding user response：

QOpenGLWidget has been moved to Qt OpenGL Widgets module. You must to link against both Qt6OpenGL.lib and Qt6OpenGLWidget.lib.

https://doc.qt.io/qt-6/opengl-changes-qt6.html#the-qopenglwidgets-class

CodePudding user response：

Which help from Qt Forum, I found that these errors were being caused because I was missing adding the openglwidgets module into the project.

After setting Qt Modules to core;gui;widgets;opengl;openglwidgets it compiled successfully.

It strange that the module openglwidgets is missing in the plugin window of Qt Modules, should be reported as a bug/missing?