To create a scroll bar control using the CreateWindow or CreateWindowEx function specify the SCROLLBAR class, appropriate window style constants, and a combination of the following scroll bar control styles. Some of the styles create a scroll bar control that uses a default width or height. However, you must always specify the x- and y-coordinates and the other dimensions of the scroll bar when you call CreateWindow or CreateWindowEx.
| Style | Meaning |
|---|---|
| SBS_BOTTOMALIGN | Aligns the bottom edge of the scroll bar with the bottom edge of the rectangle defined by the x, y, nWidth, and nHeight parameters of CreateWindowEx function. The scroll bar has the default height for system scroll bars. Use this style with the SBS_HORZ style. |
| SBS_HORZ | Designates a horizontal scroll bar. If neither the SBS_BOTTOMALIGN nor SBS_TOPALIGN style is specified, the scroll bar has the height, width, and position specified by the x, y, nWidth, and nHeight parameters of CreateWindowEx. |
| SBS_LEFTALIGN | Aligns the left edge of the scroll bar with the left edge of the rectangle defined by the x, y, nWidth, and nHeight parameters of CreateWindowEx. The scroll bar has the default width for system scroll bars. Use this style with the SBS_VERT style. |
| SBS_RIGHTALIGN | Aligns the right edge of the scroll bar with the right edge of the rectangle defined by the x, y, nWidth, and nHeight parameters of CreateWindowEx. The scroll bar has the default width for system scroll bars. Use this style with the SBS_VERT style. |
| SBS_SIZEBOX | Designates a size box. If you specify neither the SBS_SIZEBOXBOTTOMRIGHTALIGN nor the SBS_SIZEBOXTOPLEFTALIGN style, the size box has the height, width, and position specified by the x, y, nWidth, and nHeight parameters of CreateWindowEx. |
| SBS_SIZEBOXBOTTOMRIGHT ALIGN |
Aligns the lower right corner of the size box with the lower right corner of the rectangle specified by the x, y, nWidth, and nHeight parameters of CreateWindowEx. The size box has the default size for system size boxes. Use this style with the SBS_SIZEBOX style. |
| SBS_SIZEBOXTOPLEFTALIGN | Aligns the upper left corner of the size box with the upper left corner of the rectangle specified by the x, y, nWidth, and nHeight parameters of CreateWindowEx. The size box has the default size for system size boxes. Use this style with the SBS_SIZEBOX style. |
| SBS_SIZEGRIP | Same as SBS_SIZEBOX, but with a raised edge. |
| SBS_TOPALIGN | Aligns the top edge of the scroll bar with the top edge of the rectangle defined by the x, y, nWidth, and nHeight parameters of CreateWindowEx. The scroll bar has the default height for system scroll bars. Use this style with the SBS_HORZ style. |
| SBS_VERT | Designates a vertical scroll bar. If you specify neither the SBS_RIGHTALIGN nor the SBS_LEFTALIGN style, the scroll bar has the height, width, and position specified by the x, y, nWidth, and nHeight parameters of CreateWindowEx. |