How prevent os to refresh the video memory
I need to implement an application which can freeze the screen image
while, at the same time, all the application work as normal, except they
are not reflected on the screen.
It may need to prevent all the applications to write data into the video
card memory.
Some one told me to try CUDA programming, but it only works on Nivida
video card, and I need my program to be suitable for all kinds of video
cards.
I don't know if there is any API about video card drivers that can help.
The function of the program is really very simple, but I don't have any clue.
Should I work into driver programming ,or video drivers already provided
such kind of api for programmers?
Should I directly deal with the hardware or just use the provided api (if
there is one)?
The program will run on the platform of windows, but the hints from linux
also would be fine (maybe they are my inspiration).
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