Here is a list of all documented functions with links to the class documentation for each member:
- o -
- Fl_Output() : Fl_Output
 
- Fl_Overlay_Window() : Fl_Overlay_Window
 
- offscreen() : Fl_Image_Surface
 
- offset() : Fl_Terminal
 
- offset_line_starts() : Fl_Text_Display
 
- ok_label() : Fl_File_Chooser
 
- on_insert() : Fl_Group, Fl_Scroll, Fl_Tabs, Fl_Tile
 
- on_move() : Fl_Group, Fl_Scroll, Fl_Tabs, Fl_Tile
 
- on_remove() : Fl_Flex, Fl_Grid, Fl_Group, Fl_Tabs, Fl_Tile
 
- open() : Fl_Tree, Fl_Tree_Item
 
- open_toggle() : Fl_Tree, Fl_Tree_Item
 
- openchild_marginbottom() : Fl_Tree, Fl_Tree_Prefs
 
- opendeicon() : Fl_Tree_Prefs
 
- opengl_plugin() : Fl_Device_Plugin
 
- openicon() : Fl_Tree, Fl_Tree_Prefs
 
- operator const char *() : Fl_Preferences::Name
 
- operator[]() : Fl_Tree_Item_Array
 
- option() : Fl
 
- options() : Fl_Native_File_Chooser
 
- origin() : Fl_Copy_Surface, Fl_EPS_File_Surface, Fl_Image_Surface, Fl_PDF_File_Surface, Fl_PostScript_File_Device, Fl_Printer, Fl_SVG_File_Surface, Fl_Widget_Surface
 
- original() : Fl_Shared_Image
 
- ortho() : Fl_Gl_Window
 
- os_id() : Fl_Window
 
- output() : Fl_Widget
 
- output_translate() : Fl_Terminal
 
- outputfile() : Fl_Text_Buffer
 
- override() : Fl_Window
 
- overstrike() : Fl_Text_Display
 
- own_colormap() : Fl