maximum and minimum allowed memory

Can you point me to an API or method used to retrieve the maximum and allowed minimum video graphics memory of my local system ? I have looked into WMI and found 开发者_开发知识库none to help me with this. For my laptop it is reported a range of 8-256 MB, I can only get 256. Where is that 8 coming from ? Please ask if you think my question is unreal.

unless you are trying to get the hardware spec related to graphic. I don't think its practical to ask the OS about the min and max, as they can use virtual mem/mem-management to dymanically adjust that as needed.

I guess 8 is the minimum value required so that video card will be able to display a GUI.