Capturing Screen Data from Multiple Monitors
Posted on 2003-12-01
I have been able to capture screen data from a single monitor using
a combination of GetDesktopWindow, GetWindowDC, and BitBlt.
This is great for a single monitor case, but I don't know what to do
for when the desktop spans across multiple monitors.
So here are the pieces I need to solve this:
1. How does my code know when a user has configured their windows computer
to use two or more monitors?
2. How does my code know the arrangement of monitors (laid out horizonally, or vertically)
3. Most important part: Once I detect multiple monitors, how do I capture
the data off of the other monitors?
Thanks for any help.