Check for scaling in macOS windows #2
Merged
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Suggestion for python-pillow#9070
Here's the best idea I could come up with.
One of the
screencaptureflags isExcluding the shadow changes the size of the window. So if we take two screenshots of a window, we can measure the size of the shadow.
On a retina screen, the shadow is twice as wide as it is on a non-retina screen.
It is possible that a window doesn't have a shadow, but perhaps that can be considered an edge case.