Specifies GUI Thumbnail window attributes settings.
| IG_GUI_THUMBNAIL_WIDTH | The value specified is a width of image thumbnails. |
| IG_GUI_THUMBNAIL_HEIGHT | The value specified is a height of image thumbnails. |
| IG_GUI_THUMBNAIL_SHOW_TITLE | If the value specified is TRUE then image title is displayed, if FALSE - title is not displayed. |
| IG_GUI_THUMBNAIL_X_SPACING | The value specified is an X offset of upper left corner of thumbnail. |
| IG_GUI_THUMBNAIL_Y_SPACING | The value specified is an Y offset of upper left corner of thumbnail from the edge or the previous thumbnail. |
| IG_GUI_THUMBNAIL_SHOW_FLAT | If the value specified is FALSE then thumbnails displayed with 3D-style border, otherwise border style is flat. |
| IG_GUI_THUMBNAIL_BORDER_WIDTH | The value specified is a width of the border surrounding the thumbnail in pixels. |
| IG_GUI_THUMBNAIL_SHADOW_WIDTH | The value specified is a width of the shadow surrounding the thumbnail in pixels. |
| IG_GUI_THUMBNAIL_ZOOM_FACTOR | The value specified is a zoom factor applied to the thumbnail when shift and the left mouse button are selected. |
| IG_GUI_THUMBNAIL_INTERIOR | The value specified is a thumbnail interior border spacing in pixels. |
| IG_GUI_THUMBNAIL_MAGNIFY_FLAG | If the value specified is TRUE then if thumbnail is selected image will magnify; if value is FALSE - no magnification occurs. |
| IG_GUI_THUMBNAIL_TITLE_HEIGHT | The value specified is a height of the thumbnail title. |
| IG_GUI_THUMBNAIL_USE_EMBEDDED | If the value specified is TRUE then all embedded thumbnails will be used to display thumbnails; if value is FALSE then thumbnail are created from the images. |
| IG_GUI_THUMBNAIL_ALL_PAGES | If the value specified is TRUE then separate thumbnail will be created for every page of multi-page image; if value is FALSE then only first page thumbnail will be created for multi-page image. |
| IG_GUI_THUMBNAIL_TITLE_STYLE | This value has been deprecated and will be removed from the public API in a future release. |
| IG_GUI_THUMBNAIL_FONT_TITLE | The value specified is a HFONT handle of font to be used for thumbnail title display. |
| IG_GUI_THUMBNAIL_ACTIVE_ID | The value specified is an index of the currently selected icon in the thumbnail window. |
| IG_GUI_THUMBNAIL_MULTISELECT | If value specified is TRUE then multiple thumbnails selection is allowed. |
| IG_GUI_THUMBNAIL_HIGHLIGHT_COLOR | The value specified is a color for highlighted icons. |
| IG_GUI_THUMBNAIL_ALIAS_THRESHOLD | The value specified is an antialiasing threshold used to create 1-bit image thumbnails. |
| IG_GUI_THUMBNAIL_INTERPOLATION | The value specified is an interpolation mode used to create image thumbnails. |
See IG_GUI_thumbnail_attribute_set for more details.