| Description: |
The native optical resolution along the X-axis of the device controlled by the Source. Most devices will respond with a single value
(TW_ONEVALUE).
This is NOT a list of all resolutions that can be generated by the device. Rather, this is the resolution of the device's optics. Measured in units of pixels per unit as defined by
ICAP_UNITS (pixels per TWUN_PIXELS yields dimensionless data).
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