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Hardware overlay is a technique implemented by most modern graphics cards that allows an application to write to a
dedicated part of video memory, rather than to the part shared by all applications. In this way, clipping, moving and
scaling of the image can be performed by the graphics hardware rather than by the CPU in software.
One consequence of hardware overlay use is that a screenshot program (for example, the one automatically built into
Windows that activates when the PrtSc key is pressed) often does not capture the content appearing in the hardware overlay
window. Rather, a blank region containing only the special mask color is captured. This is because the screen capture
routine doesn't consider the special video memory regions dedicated to overlays - it simply captures the shared main screen
as rendered by the software's graphical subsystem. Some Digital Rights Management schemes use hardware overlay to display
protected content on the screen, taking advantage of this quirk to prevent the copying of protected documents by way of
screen capture programs.
ScreenVirtouso doesn't capture overlays. It try to disable them instead.
There are two modes: Disable (session) and Disable (permanent>
If you choose the Disable (session) mode, ScreenVirtuoso locks overlays on start and unlocks them on stop.
If you choose the Disable (permanent) mode, ScreenVirtuoso runs a special dxlock.exe process when Windows starts.
If you choose the Do nothing mode, ScreenVirtuoso does not try to disable overlays.
Note: Overlays locking may result in problems with some programs like DVD players.
To fix this, set the Overlays: Do nothing mode.
Note: It is not possible to disable overlays on some systems with powerful graphic cards.
It happens very rare, but still happens.
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