| nID | Specifies the button command ID. |
| lpszText | Specifies the button text. |
| nSmallImageIndex | Zero-based index of button's image in the image list of small icons. |
| nLargeImageIndex | Zero-based index of the button's image in the list of large images. |
| uiImagesPaletteResID | Resource id of image list with gallery images. |
| cxPaletteImage | Specifies the width, in pixels, of gallery image. |
| uiImagesPaletteSimplifiedResID | Specifies a resource ID of an image list, which contains images for the group. This image list will be displayed in the Ribbon simplified mode only. |
| cxPaletteImageSimplified | Specifies the width of an image (simplified mode). |
| type | Specifies a ribbon element appearance in the Ribbon simplified mode. |
| bHideInFullMode | Specifies whether a ribbon element is invisible in the Ribbon classic (non-simplified) mode. |