How to access pointer in Matlab?

I am trying to access the data I acquired from a CCD camera. This camera gets data and store in memory. They have a function to obtain the data pointer, however, I don't know how to access it. Please help.

Here is part of the code I have:

>> calllib('gsense400control','PSL_VHR_Snap_and_return')   % this is to get the image from the sensor

>> imag_pointer = calllib('gsense400control','PSL_VHR_get_image_pointer');  % using this I can get the image pointer
% if I want to save the image, I can do following:

>> filename = 'test.flf';

>> calllib('gsense400control','PSL_VHR_save_flf_image', img_pointer, width, height, filename)  % with and height are the CCD sensor's pixel number in horizontal and vertical direction.

However, here I don't want to save the image first, instead, I want to access the image from the memory and directly process it.

Please let me know. Thank you.