#672 – Mouse Coordinates Are in Device Independent Units

As with other screen position values in WPF, the Mouse.GetPosition function returns coordinates that are in device independent units, rather than in pixels.

1 device independet unit = 1/96 in.  This means that on a 96 dpi device, the value will actually map to pixels, but on other devices, the value will not be the same as the # pixels.

 

 

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