A scroll bar has styles that determine what it looks like and how it responds to input. Styles are specified in the WinCreateWindow function or the CONTROL statement. A scroll-bar can have the following styles:
┌───────────────┬─────────────────────────────────────────────┐ │Style │Meaning │ ├───────────────┼─────────────────────────────────────────────┤ │SBS_AUTOTRACK │Causes the entire slider to track the │ │ │movement of the mouse pointer when the user │ │ │scrolls the window. Without this style, only │ │ │an outlined image of the slider tracks the │ │ │movement of the mouse pointer, and the slider│ │ │jumps to the new location when the user │ │ │releases the mouse button. │ ├───────────────┼─────────────────────────────────────────────┤ │SBS_HORZ │Creates a horizontal scroll bar. │ ├───────────────┼─────────────────────────────────────────────┤ │SBS_THUMBSIZE │Used to calculate the size of the scroll-bar │ │ │slider from the SBCDATA passed to │ │ │WinCreateWindow. │ ├───────────────┼─────────────────────────────────────────────┤ │SBS_VERT │Creates a vertical scroll bar. │ └───────────────┴─────────────────────────────────────────────┘