Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. Failure to find OpenGL and weird warnings in MSVC 2019
QtWS25 Last Chance

Failure to find OpenGL and weird warnings in MSVC 2019

Scheduled Pinned Locked Moved Unsolved General and Desktop
openglqmakemsvc2019
2 Posts 1 Posters 761 Views
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • F Offline
    F Offline
    feistykittykat
    wrote on last edited by feistykittykat
    #1

    Hello all,

    I'm getting some weird errors when using MSVC 2019 to compile and run QT. Namely, the following:

    Severity	Code	Description	Project	File	Line	Suppression State
    Warning	C26451	Arithmetic overflow: Using operator '+' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '+' to avoid overflow (io.2).	project_name c:\qt\5.12.2\msvc2017\include\qtcore\qglobal.h	591	
    Warning	C26451	Arithmetic overflow: Using operator '-' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '-' to avoid overflow (io.2).	project_name c:\qt\5.12.2\msvc2017\include\qtcore\qglobal.h	591	
    Warning	C26451	Arithmetic overflow: Using operator '+' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '+' to avoid overflow (io.2).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qglobal.h	591	
    Warning	C26451	Arithmetic overflow: Using operator '-' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '-' to avoid overflow (io.2).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qglobal.h	591	
    Warning	C26498	The function 'qMetaTypeId<QtMetaTypePrivate::QPairVariantInterfaceImpl>' is constexpr, mark variable 'toId' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qmetatype.h	2287	
    Warning	C26495	Variable 'QtSharedPointer::ExternalRefCountData::destroyer' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qsharedpointer_impl.h	154	
    Warning	C26495	Variable 'QtSharedPointer::ExternalRefCountData::strongref' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qsharedpointer_impl.h	154	
    Warning	C26495	Variable 'QtSharedPointer::ExternalRefCountData::weakref' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qsharedpointer_impl.h	154	
    Warning	C26495	Variable 'QStringView::m_data' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qstringview.h	207	
    Warning	C26495	Variable 'QStringView::m_size' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qstringview.h	207	
    Warning	C26498	The function 'qMetaTypeId<QHash<QString,QVariant> >' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
    Warning	C26498	The function 'qMetaTypeId<QList<QVariant> >' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
    Warning	C26498	The function 'qMetaTypeId<QMap<QString,QVariant> >' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
    Warning	C26498	The function 'qMetaTypeId<QPair<QVariant,QVariant> >' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
    Warning	C26498	The function 'qMetaTypeId<QtMetaTypePrivate::QAssociativeIterableImpl>' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
    Warning	C26498	The function 'qMetaTypeId<QtMetaTypePrivate::QPairVariantInterfaceImpl>' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
    Warning	C26498	The function 'qMetaTypeId<QtMetaTypePrivate::QSequentialIterableImpl>' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
    Warning	C26495	Variable 'QColor::cspec' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	283	
    Warning	C26495	Variable 'QColor::ct' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	283	
    Warning	C26495	Variable 'QColor::cspec' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	286	
    Warning	C26495	Variable 'QColor::ct' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	286	
    Warning	C26495	Variable 'QColor::cspec' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	289	
    Warning	C26495	Variable 'QColor::ct' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	289	
    Warning	C26495	Variable 'QColor::cspec' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	292	
    Warning	C26495	Variable 'QColor::ct' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	292	
    Warning	C26495	Variable 'QColor::cspec' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	296	
    Warning	C26495	Variable 'QColor::ct' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	296	
    Warning	C26439	This kind of function may not throw. Declare it 'noexcept' (f.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qfontmetrics.h	149	
    Warning	C26495	Variable 'QMatrix::_dx' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
    Warning	C26495	Variable 'QMatrix::_dy' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
    Warning	C26495	Variable 'QMatrix::_m11' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
    Warning	C26495	Variable 'QMatrix::_m12' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
    Warning	C26495	Variable 'QMatrix::_m21' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
    Warning	C26495	Variable 'QMatrix::_m22' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
    Warning	C26495	Variable 'QMatrix::_dx' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
    Warning	C26495	Variable 'QMatrix::_dy' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
    Warning	C26495	Variable 'QMatrix::_m11' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
    Warning	C26495	Variable 'QMatrix::_m12' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
    Warning	C26495	Variable 'QMatrix::_m21' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
    Warning	C26495	Variable 'QMatrix::_m22' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
    Warning	C26495	Variable 'QPalette::<anonymous-tag>::for_faster_swapping_dont_use' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qpalette.h	71
    

    So I wasn't too worried about these, but maybe I should be. I'm not even sure if they're related to my main problem, which is that visual studio isn't finding any versions of OpenGL. My only idea of a cause is that maybe the MSVC2017 build binaries aren't compatible with MSVC2019 like I initially hoped, but a google search tells me that I should be fine. When I try to create some #ifdefs, I always get the error that I'm throwing in the #else block of the following code:

    QSurfaceFormat format;
    #if   defined(QT_OPENGL_ES_3)
            format = settings->configOpenGLES(); // Configuring format for Open GL ES 3.0
        #elif defined(QT_OPENGL_ES_2)
            throw("Error, Open GL ES 2.0 is not supported by this hardware");
        #elif defined(QT_OPENGL)
            format = settings->configOpenGL();
        #else
            throw("Error, no rendering modes supported by this hardware");
        #endif
    

    I'm not very familiar with Qt (and am developing on Windows), but I did notice that all versions of Open GL are disabled in my C:\Qt\5.12.2\msvc2017\include\QtGui\qtgui-config.h file. I'm not sure if this is related at all, since that file is just something that ships with Qt.

    Lastly, my .pro looks like this:

    message("Beginning qmake build of project_name.pro")
    
    TEMPLATE = app
    TARGET = project_name
    QT += core \
          opengl \ 
    	  gui \
    	  widgets \
    	  concurrent \ # Mutexes/multithreading
    	  openglextensions \
    	  network # TCP/IP
    
    # Set general configuration options /////////////////////////////////////////////////
    CONFIG += c++latest # Add support for c++17.
    CONFIG += qt thread # console 
    CONFIG += debug_and_release # Creates additional debug and release folders, but need it for debug
    
    CONFIG(debug, debug|release){
        DESTDIR = ../app/debug
    } else {
        DESTDIR = ../app/release
    }
    
    CONFIG += no_lflags_merge # Ensures that the list of libraries stored in the LIBS variable is not reduced to a list of unique values before it is used.
    # CONFIG += CONSOLE # makes this a console application
    CONFIG += flat # flattens file hierarchy, subtract if this is not desired
    
    # Do not display debug output in release mode
    CONFIG(debug, debug|release) : CONFIG += debug_info
    CONFIG(release, debug|release) : DEFINES += QT_NO_DEBUG_OUTPUT
    
    # Defines //////////////////////////////////////////////////////////////////////////
    DEFINES += _UNICODE _ENABLE_EXTENDED_ALIGNED_STORAGE WIN64 QT_DLL QT_OPENGL_LIB QT_OPENGLEXTENSIONS_LIB QT_WIDGETS_LIB
    INCLUDEPATH += ./qt_generated \
        . \
        ./qt_generated/$(ConfigurationName)
    LIBS += -lopengl32 \
        -lglu32
    DEPENDPATH += .
    
    
    # Set directories //////////////////////////////////////////////////////////////////
    MOC_DIR += ./qt_generated/moc
    OBJECTS_DIR += ./qt_generated/obj
    UI_DIR += ./qt_generated/ui
    RCC_DIR += ./qt_generated
    
    message("Loaded .pro files, now loading .pri")
    
    # Load in library files for project
    include(project_name.pri)
    
    message("Loaded .pri files")
    

    Which I am running with the following .bat file:

    REM Build main app with visual studio make and qmake
    call C:\"Program Files (x86)"\"Microsoft Visual Studio"\2019\Community\VC\Auxiliary\Build\vcvarsall.bat x86  && cd C:\Users\me\Documents\Projects\project-dir\project_name && call c:\Qt\5.12.2\msvc2017\bin\qmake -r -tp vc || echo qmake failed, Exit Code is %errorlevel% )
    

    Any suggestions?

    Edit: Just tried this with MSVC 2017. I'm no longer getting the warnings that I was getting before. However, my check for the QT_OPENGL macro variants is still not working. Any ideas? Is it possible that my system simply does not support open GL ES? If this is the case, how do I develop to support open GL ES?

    F 1 Reply Last reply
    0
    • F feistykittykat

      Hello all,

      I'm getting some weird errors when using MSVC 2019 to compile and run QT. Namely, the following:

      Severity	Code	Description	Project	File	Line	Suppression State
      Warning	C26451	Arithmetic overflow: Using operator '+' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '+' to avoid overflow (io.2).	project_name c:\qt\5.12.2\msvc2017\include\qtcore\qglobal.h	591	
      Warning	C26451	Arithmetic overflow: Using operator '-' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '-' to avoid overflow (io.2).	project_name c:\qt\5.12.2\msvc2017\include\qtcore\qglobal.h	591	
      Warning	C26451	Arithmetic overflow: Using operator '+' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '+' to avoid overflow (io.2).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qglobal.h	591	
      Warning	C26451	Arithmetic overflow: Using operator '-' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator '-' to avoid overflow (io.2).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qglobal.h	591	
      Warning	C26498	The function 'qMetaTypeId<QtMetaTypePrivate::QPairVariantInterfaceImpl>' is constexpr, mark variable 'toId' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qmetatype.h	2287	
      Warning	C26495	Variable 'QtSharedPointer::ExternalRefCountData::destroyer' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qsharedpointer_impl.h	154	
      Warning	C26495	Variable 'QtSharedPointer::ExternalRefCountData::strongref' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qsharedpointer_impl.h	154	
      Warning	C26495	Variable 'QtSharedPointer::ExternalRefCountData::weakref' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qsharedpointer_impl.h	154	
      Warning	C26495	Variable 'QStringView::m_data' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qstringview.h	207	
      Warning	C26495	Variable 'QStringView::m_size' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qstringview.h	207	
      Warning	C26498	The function 'qMetaTypeId<QHash<QString,QVariant> >' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
      Warning	C26498	The function 'qMetaTypeId<QList<QVariant> >' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
      Warning	C26498	The function 'qMetaTypeId<QMap<QString,QVariant> >' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
      Warning	C26498	The function 'qMetaTypeId<QPair<QVariant,QVariant> >' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
      Warning	C26498	The function 'qMetaTypeId<QtMetaTypePrivate::QAssociativeIterableImpl>' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
      Warning	C26498	The function 'qMetaTypeId<QtMetaTypePrivate::QPairVariantInterfaceImpl>' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
      Warning	C26498	The function 'qMetaTypeId<QtMetaTypePrivate::QSequentialIterableImpl>' is constexpr, mark variable 'vid' constexpr if compile-time evaluation is desired (con.5).	project_name	c:\qt\5.12.2\msvc2017\include\qtcore\qvariant.h	721	
      Warning	C26495	Variable 'QColor::cspec' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	283	
      Warning	C26495	Variable 'QColor::ct' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	283	
      Warning	C26495	Variable 'QColor::cspec' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	286	
      Warning	C26495	Variable 'QColor::ct' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	286	
      Warning	C26495	Variable 'QColor::cspec' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	289	
      Warning	C26495	Variable 'QColor::ct' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	289	
      Warning	C26495	Variable 'QColor::cspec' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	292	
      Warning	C26495	Variable 'QColor::ct' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	292	
      Warning	C26495	Variable 'QColor::cspec' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	296	
      Warning	C26495	Variable 'QColor::ct' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qcolor.h	296	
      Warning	C26439	This kind of function may not throw. Declare it 'noexcept' (f.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qfontmetrics.h	149	
      Warning	C26495	Variable 'QMatrix::_dx' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
      Warning	C26495	Variable 'QMatrix::_dy' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
      Warning	C26495	Variable 'QMatrix::_m11' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
      Warning	C26495	Variable 'QMatrix::_m12' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
      Warning	C26495	Variable 'QMatrix::_m21' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
      Warning	C26495	Variable 'QMatrix::_m22' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	60	
      Warning	C26495	Variable 'QMatrix::_dx' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
      Warning	C26495	Variable 'QMatrix::_dy' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
      Warning	C26495	Variable 'QMatrix::_m11' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
      Warning	C26495	Variable 'QMatrix::_m12' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
      Warning	C26495	Variable 'QMatrix::_m21' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
      Warning	C26495	Variable 'QMatrix::_m22' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qmatrix.h	70	
      Warning	C26495	Variable 'QPalette::<anonymous-tag>::for_faster_swapping_dont_use' is uninitialized. Always initialize a member variable (type.6).	project_name	c:\qt\5.12.2\msvc2017\include\qtgui\qpalette.h	71
      

      So I wasn't too worried about these, but maybe I should be. I'm not even sure if they're related to my main problem, which is that visual studio isn't finding any versions of OpenGL. My only idea of a cause is that maybe the MSVC2017 build binaries aren't compatible with MSVC2019 like I initially hoped, but a google search tells me that I should be fine. When I try to create some #ifdefs, I always get the error that I'm throwing in the #else block of the following code:

      QSurfaceFormat format;
      #if   defined(QT_OPENGL_ES_3)
              format = settings->configOpenGLES(); // Configuring format for Open GL ES 3.0
          #elif defined(QT_OPENGL_ES_2)
              throw("Error, Open GL ES 2.0 is not supported by this hardware");
          #elif defined(QT_OPENGL)
              format = settings->configOpenGL();
          #else
              throw("Error, no rendering modes supported by this hardware");
          #endif
      

      I'm not very familiar with Qt (and am developing on Windows), but I did notice that all versions of Open GL are disabled in my C:\Qt\5.12.2\msvc2017\include\QtGui\qtgui-config.h file. I'm not sure if this is related at all, since that file is just something that ships with Qt.

      Lastly, my .pro looks like this:

      message("Beginning qmake build of project_name.pro")
      
      TEMPLATE = app
      TARGET = project_name
      QT += core \
            opengl \ 
      	  gui \
      	  widgets \
      	  concurrent \ # Mutexes/multithreading
      	  openglextensions \
      	  network # TCP/IP
      
      # Set general configuration options /////////////////////////////////////////////////
      CONFIG += c++latest # Add support for c++17.
      CONFIG += qt thread # console 
      CONFIG += debug_and_release # Creates additional debug and release folders, but need it for debug
      
      CONFIG(debug, debug|release){
          DESTDIR = ../app/debug
      } else {
          DESTDIR = ../app/release
      }
      
      CONFIG += no_lflags_merge # Ensures that the list of libraries stored in the LIBS variable is not reduced to a list of unique values before it is used.
      # CONFIG += CONSOLE # makes this a console application
      CONFIG += flat # flattens file hierarchy, subtract if this is not desired
      
      # Do not display debug output in release mode
      CONFIG(debug, debug|release) : CONFIG += debug_info
      CONFIG(release, debug|release) : DEFINES += QT_NO_DEBUG_OUTPUT
      
      # Defines //////////////////////////////////////////////////////////////////////////
      DEFINES += _UNICODE _ENABLE_EXTENDED_ALIGNED_STORAGE WIN64 QT_DLL QT_OPENGL_LIB QT_OPENGLEXTENSIONS_LIB QT_WIDGETS_LIB
      INCLUDEPATH += ./qt_generated \
          . \
          ./qt_generated/$(ConfigurationName)
      LIBS += -lopengl32 \
          -lglu32
      DEPENDPATH += .
      
      
      # Set directories //////////////////////////////////////////////////////////////////
      MOC_DIR += ./qt_generated/moc
      OBJECTS_DIR += ./qt_generated/obj
      UI_DIR += ./qt_generated/ui
      RCC_DIR += ./qt_generated
      
      message("Loaded .pro files, now loading .pri")
      
      # Load in library files for project
      include(project_name.pri)
      
      message("Loaded .pri files")
      

      Which I am running with the following .bat file:

      REM Build main app with visual studio make and qmake
      call C:\"Program Files (x86)"\"Microsoft Visual Studio"\2019\Community\VC\Auxiliary\Build\vcvarsall.bat x86  && cd C:\Users\me\Documents\Projects\project-dir\project_name && call c:\Qt\5.12.2\msvc2017\bin\qmake -r -tp vc || echo qmake failed, Exit Code is %errorlevel% )
      

      Any suggestions?

      Edit: Just tried this with MSVC 2017. I'm no longer getting the warnings that I was getting before. However, my check for the QT_OPENGL macro variants is still not working. Any ideas? Is it possible that my system simply does not support open GL ES? If this is the case, how do I develop to support open GL ES?

      F Offline
      F Offline
      feistykittykat
      wrote on last edited by
      #2

      @feistykittykat Don't know if I'm allowed to bump this bad boy up. Been struggling to use PVRVFrame or something similar to get openGL found on my machine, but I have no idea how to set it up for QT. Still not even sure if that's the source of my problem.

      1 Reply Last reply
      0

      • Login

      • Login or register to search.
      • First post
        Last post
      0
      • Categories
      • Recent
      • Tags
      • Popular
      • Users
      • Groups
      • Search
      • Get Qt Extensions
      • Unsolved