E:\tom\3rd\pkg\Qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface.cpp(67): error C2027: use of undefined type 'QGLContext'
e:\tom\3rd\pkg\qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface_p.h(64): note: see declaration of 'QGLContext'
E:\tom\3rd\pkg\Qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface.cpp(67): error C2227: left of '->makeCurrent' must point to class/struct/union/generic type
E:\tom\3rd\pkg\Qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface.cpp(69): error C2027: use of undefined type 'QGLContext'
e:\tom\3rd\pkg\qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface_p.h(64): note: see declaration of 'QGLContext'
E:\tom\3rd\pkg\Qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface.cpp(69): error C2227: left of '->contextHandle' must point to class/struct/union/generic type
E:\tom\3rd\pkg\Qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface.cpp(70): error C3536: 'handle': cannot be used before it is initialized
E:\tom\3rd\pkg\Qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface.cpp(70): error C2027: use of undefined type 'QOpenGLContext'
e:\tom\3rd\pkg\qt-5.12.4_gom1\qt\qtbase\include\qtgui\../../src/gui/kernel/qsurfaceformat.h(49): note: see declaration of 'QOpenGLContext'
E:\tom\3rd\pkg\Qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface.cpp(70): error C3861: 'currentContext': identifier not found
E:\tom\3rd\pkg\Qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface.cpp(71): error C2227: left of '->makeCurrent' must point to class/struct/union/generic type
E:\tom\3rd\pkg\Qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface.cpp(71): note: type is 'int'
E:\tom\3rd\pkg\Qt-5.12.4_gom1\qt\qtmultimedia\src\multimediawidgets\qpaintervideosurface.cpp(71): error C2227: left of '->surface' must point to class/struct/union/generic type