Hi forum,

I am creating a OpenCL context with OpenGL interoperability with the following snippet:

Code :
	 cl_context_properties contextProperties[] =
	    {
#ifdef defined(_WIN32)
	       CL_GL_CONTEXT_KHR, (cl_context_properties) windowsContext->getWGLContext(),
	       CL_WGL_HDC_KHR, (cl_context_properties) windowsContext->getHDC(),
#elif defined(__GNUC__)
	       CL_GL_CONTEXT_KHR, (cl_context_properties) linuxContext->getContext(),
	       CL_GLX_DISPLAY_KHR, (cl_context_properties) linuxContext->getDisplay(),
#elif defined(__APPLE__)
	       CL_CONTEXT_PROPERTY_USE_CGL_SHAREGROUP_APPLE,
	       (cl_context_properties) shareGroup,
#endif
	       CL_CONTEXT_PLATFORM, (cl_context_properties) _m_clPlatform, 
	       0	
	    };
 
	 //create context with the GPU device only
	 _m_clContext = clCreateContext(contextProperties,1,&_m_clDevice,NULL,NULL,&errNum);
 
	 if(errNum != CL_SUCCESS)
	 {
	    osg::notify(osg::FATAL) << "Could not create GPU context." << std::endl;
	    return false;
	 }
	 else
	    osg::notify(osg::FATAL) << "OpenCL context creation is successful." << std::endl;

I am not getting any error information and i assume that OpenCL context creation is successful. To be sure i want to print out the context properties . I need some hint to do that .
I am trying to get the context properties as follows:

Code :
	    size_t contextPropertySize;
 
	    errNum = clGetContextInfo(cxt->_m_clContext,
				      CL_CONTEXT_PROPERTIES,
				      0,
				      NULL,
				      &contextPropertySize);
 
	    cl_context_properties *contextProperties = (cl_context_properties*)alloca(sizeof(cl_context_properties) * contextPropertySize);
 
 
	    errNum = clGetContextInfo(cxt->_m_clContext,
				      CL_CONTEXT_PROPERTIES,
				      contextPropertySize,
				      contextProperties,
				      NULL);
 
	    if( errNum != CL_SUCCESS)
	    {
	       osg::notify(osg::FATAL) << __FUNCTION__ << ": " << __LINE__ << ": " << _texref->getName()
				       << ": unable to pull out context properties: "
				       << cxt->getErrorString(errNum)  << std::endl;
	    }


I am not sure who to print them out as character array . Any hint?


Thanks
Sajjadul