constants PartEnum
The PartEnum expression indicates the parts in the control. Use the Background property to change the visual aspect for a specified part. Use the VisiblePart or VisibleParts property to specify which part is visible and which part is not visible. Use the EnablePart or EnableParts property to specify which part is enabled and which part is disabled.

NameValueDescription
exLowerBackPart512 The area from the start to the thumb.
exThumbPart256 The thumb/slider part
exUpperBackPart128 The area between thumb and the end.
exBackgroundPart640 The lower and upper parts.
exSelPart1 The selection range part. Use the SelectRange property to make it visible.
exPartNone0 exPartNone