If you open a USB uEye XS the "Size" tab looks different.

Fig. 174: uEye Demo - Size for XS
Image Formats
Set the image size for the live image via the drop-down lists. The drop-down lists show all image sizes which are supported in the current operating mode by the sensor.
Horizontal/vertical format
•Mirror left/right and Mirror up/down (is_SetRopEffect())
Select this check box to flip the image horizontally/vertically.
Resetting the parameters
Click on the "Default" button to reset all parameters to the model-specific defaults.