I am using the WebCam Control in WinForms (latest Version) and placed it on an empty form. Then I tested this "program" on a Test device (CAT T20 Win10 Tablet). The preview picture in the control does not match the orientation of the device. (depending on which side of the device is at top the visible picture is rotated 90/180 degrees).
For testing purposes I installed the WinForms Example application on the same tablet device with the same results.
How to sync the captured picture to the orientation of the device? In the WPF documentation of the WebCamControl I found a Videoflip method, which is not available in WinForms.