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Technical information on inquiring memory usage

Keith A

New Member
Oct 4, 2017
1 (0.00/day)
I hope this question is in the appropriate category, but I'd like to find out specifically how the GPU-Z application inquires the video memory usage. I have an application that is using the OpenGL extension "VBO_FREE_MEMORY_ATI" to inquire the amount of memory available on an AMD/ATi graphics card. However, this doesn't seem to work correctly as it always returns the same value even though GPU-Z shows an increase in memory usage while my application is running (which is to be expected).

I would be very grateful for any information on how to accurately obtain this information from a C/C++ application.