Desktop Window Manager(DWM) is the window drawing system from Vista.
with DWM api, you can get any window’s thumbnail (live preview) and drawing it to another window.
I found nice blog about it, and it works well in vvvv with Dynamic Plugin.
(you can testing with attached file)
if the thumbnail can use as texture, it will be fastest way of screenshot. but unfortunately, it cannot use as dx9texture now. just rendering frontest of window.
so, I’d like to share this topic and need help!
already I found these videos and github
it seems we need hacking DWM process.
DWMTest.zip (10.1 kB)