Specifies GUI Page window control options.
| IG_GUI_PAGE_REALIZEPALETTETO | The value specified is a HWND handle of window that contains the palette to use for the page thumbnails. |
| IG_GUI_PAGE_DRAGDROP | If value specified is a TRUE then moving page thumbnails is allowed within the page window if the SHIFT key is pressed. Otherwise page moving is disabled. |
| IG_GUI_PAGE_ALIAS_THRESHOLD | The value specified is an antialiasing threshold for 1-bit page thumbnails. |
| IG_GUI_PAGE_FONT_TITLE | The value specified is a HFONT handle of font to be used for pages title display. |
| IG_GUI_PAGE_WIDTH | The value specified is a width of image page thumbnails. |
| IG_GUI_PAGE_HEIGHT | The value specified is a height of image page thumbnails. |
| IG_GUI_PAGE_INTERPOLATION | The value specified is an interpolation mode used to create image page thumbnails. |
See IG_GUI_page_attribute_set for more details.