OpenGlApiCallError  141 modules/core/src/gl_core_3_1.cpp             CV_Error(cv::Error::OpenGlApiCallError, cv::format("Can't load OpenGL extension [%s]", name) );
OpenGlApiCallError   60 modules/core/src/opengl.cpp         inline void throw_no_ogl() { CV_Error(cv::Error::OpenGlApiCallError, "OpenGL context doesn't exist"); }