By default, the EnableParts property is 1984 ( that's a OR combination of exLeftBPart, exLowerBackPart, exThumbPart, exUpperBackPart and exRightBPart ). The VisiblePart property specifies which part is visible and which part is hidden. By default, when a part becomes visible, automatically the EnablePart is called. Use the EnablePart property to disable parts of the control. A disabled part can't be clicked, and shows the disabled state. Use the Background property to apply a visual effect on any part of the control. The EnableParts property is similar with the EnablePart property. Use the OrderParts to specify the order of the buttons in the scroll bar.

By default, the following parts are enabled:

• exLeftBPart ( the left or up button of the control )
• exLowerBackPart ( the part between the left/up button and the thumb part of the control )
• exThumbPart ( the thumb/scrollbox part )
• exUpperBackPart ( the part between the the thumb and the right/down button of the control )
• exRightBPart ( the right or down button of the control )