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-rw-r--r--documentation/src/subclassing.dox3
1 files changed, 2 insertions, 1 deletions
diff --git a/documentation/src/subclassing.dox b/documentation/src/subclassing.dox
index 7dfe2909b..bbf750b15 100644
--- a/documentation/src/subclassing.dox
+++ b/documentation/src/subclassing.dox
@@ -17,7 +17,8 @@ display a value of some sort.
A composite widget holds a list of child widgets and handles moving,
sizing, showing, or hiding them as needed. Fl_Group is the main
composite widget class in FLTK, and all of the other composite widgets
-(Fl_Pack, Fl_Scroll, Fl_Tabs, Fl_Tile, and Fl_Window) are subclasses of it.
+(Fl_Pack, Fl_Scroll, Fl_Tabs, Fl_Tile, Fl_Window, Fl_Flex, Fl_Grid, etc.)
+are subclasses of it.
You can also subclass other existing widgets to provide a different
look or user-interface. For example, the button widgets are all