How to extract the values from different objects?

Hi experts,
I am newbie in OpenVX and trying to learn more about it. How can I extract the values of the vx_matrix or different object using C language ? Thank you.

With best regards,
Owais

Here is a github project which uses OpenCV functions inside OpenVX Graph - https://github.com/GPUOpen-ProfessionalCompute-Libraries/MIVisionX/tree/master/amd_openvx_extensions/amd_opencv

You can use this project to see how data is being passed between different data objects.