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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(38.4, 2%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMU%3C/text%3E%3C/svg%3E)
Hey,
We have a classroom of exam computers that are monitored by the class admin through a remote feed that uses the Windows API to take screenshots at specified intervals. Some students have found that if they execute an app with SetWindowDisplayAffinity(logo_hwnd, WDA_EXCLUDEFROMCAPTURE), it will be invisible to any monitoring tool except physical cameras, thus allowing them to cheat, which is bad. Can a computer administrator execute some command to disable this function? Maybe there is methods to take a screenshot ignoring this setting.
Sincerely, Marius
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DWM is a system component responsible for window synthesis and rendering in Windows. SetWindowDisplayAffinity cannot intercept the synthesis process of kernel level DWM. If the monitoring tool directly calls the DWM synthesis interface, it can still capture the window content