Qt + Ogre3D. I cannot build a very simple example - c++

Question

I use:
Qt 5.15.2 MinGW 32-bit Dynamic for Debug build
Ogre 13.1.1 MinGW Static build
There is a class called ApplicationContextQt that can help to use Qt with Ogre3D but I have errors:
This example is very simple:
main.cpp
#include "Ogre.h"
#include "OgreApplicationContextQt.h"
#include <QGuiApplication>
class MyTestApp : public OgreBites::ApplicationContextQt, public OgreBites::InputListener
{
public:
MyTestApp();
void setup();
bool keyPressed(const OgreBites::KeyboardEvent& evt);
};
MyTestApp::MyTestApp() : OgreBites::ApplicationContextQt("OgreTutorialApp")
{
}
bool MyTestApp::keyPressed(const OgreBites::KeyboardEvent& evt)
{
if (evt.keysym.sym == OgreBites::SDLK_ESCAPE)
{
getRoot()->queueEndRendering();
}
return true;
}
void MyTestApp::setup(void)
{
// do not forget to call the base first
OgreBites::ApplicationContextQt::setup();
}
int main(int argc, char *argv[])
{
QGuiApplication qapp(argc, argv);
MyTestApp app;
app.initApp();
app.getRoot()->startRendering();
app.closeApp();
return qapp.exec();
}
INCLUDEPATH += "E:\ProgramFiles\ogre-13.1.1\include\OGRE"
INCLUDEPATH += "E:\ProgramFiles\ogre-13.1.1\include\OGRE\Bites"
INCLUDEPATH += "E:\ProgramFiles\ogre-13.1.1\include\OGRE\RTShaderSystem"
LIBS += -L"E:\ProgramFiles\ogre-13.1.1\lib"
LIBS += -L"E:\ProgramFiles\ogre-13.1.1\lib\OGRE"
LIBS += -lOgreBitesQtStatic
LIBS += -lOgreBitesStatic -lRenderSystem_GL3PlusStatic -lOgreGLSupportStatic -lOgreMeshLodGeneratorStatic -lOgreOverlayStatic -lOgrePagingStatic -lOgrePropertyStatic -lOgreRTShaderSystemStatic -lOgreVolumeStatic -lPlugin_BSPSceneManagerStatic -lPlugin_DotSceneStatic -lPlugin_OctreeSceneManagerStatic -lPlugin_OctreeZoneStatic -lPlugin_ParticleFXStatic -lPlugin_PCZSceneManagerStatic -lRenderSystem_GLES2Static -lRenderSystem_GLStatic -lOgreMainStatic -lOgreTerrainStatic -lCodec_STBIStatic -lzlibstatic
LIBS += -lSDL2main -lSDL2.dll -lfreetype -lpugixml
LIBS += -lopengl32 -lgdi32

Answer 1

You can try this one ?
INCLUDEPATH += "E:\ProgramFiles\ogre-13.1.1\include\OGRE"
INCLUDEPATH += "E:\ProgramFiles\ogre-13.1.1\include\OGRE\Bites"
INCLUDEPATH += "E:\ProgramFiles\ogre-13.1.1\include\OGRE\RTShaderSystem"
DEPENDPATH += "E:\ProgramFiles\ogre-13.1.1\include\OGRE"
DEPENDPATH += "E:\ProgramFiles\ogre-13.1.1\include\OGRE\Bites"
DEPENDPATH += "E:\ProgramFiles\ogre-13.1.1\include\OGRE\RTShaderSystem"
LIBS += -L"E:/ProgramFiles/ogre-13.1.1/lib/OgreBitesQtStatic" -lOgreBitesQtStatic
LIBS += -L"E:/ProgramFiles/ogre-13.1.1/lib/OGRE" -lOgreBitesStatic
// OR ...
LIBS += "E:/ProgramFiles/ogre-13.1.1/lib/OgreBitesQtStatic/OgreBitesQtStatic.a"
LIBS += "E:/ProgramFiles/ogre-13.1.1/lib/OGRE/OgreBitesStatic.a"
// It just depends on the actual names of your libraries
// Same for the others unless their file location is decleared under system path.
// If so, you can add that libraries like how you did with opengl
And it is nice to add PRE_TARGETDEPS macros too if you make changes on those libraries so often:
PRE_TARGETDEPS += "E:/ProgramFiles/ogre-13.1.1/lib/OgreBitesQtStatic.a"
You can replace "/"s with "" too.
And the problem with your pro file was: You added library paths as libraries. And then tried to add that libraries from system environment.