Widget reference index

Align - Alignment constants and functions
Boxtype - Box type constants and functions
Color - Color constants and functions
Fl - Utilities and app-wide functions
Font - Font constants
Labeltype - Label type constants and functions
Menu_Entry - Wrapper class for menu items
Widget - The base class for all Fltk widgets.
- Box - Draws box and label only
- Browser_ - Abstract base class for Browsers
  - Browser - Scrolling list of lines
    - Hold_Browser - Selectable list of lines
    - Multi_Browser - Browser with multiple line selection
    - Select_Browser - Clickable list of lines
- Button - A pushable widget.
  - Check_Button - A diamond button that highlights when pressed.
  - Light_Button - A square button that highlights when pressed.
  - Repeat_Button - A button that repeatedly calls back while down.
  - Return_Button - A button that responds to Enter.
  - Round_Button - A round button that highlights when pressed.
- Group - The base widget container
  - Pack - Container to pack child widgets tightly together
  - Scroll - Scrolling container of widgets
  - Tabs - Tabbed container of widgets
  - Tile - Resizable split of children
  - Window - A window containing other widgets.
- Input_ - Abstract base class for text input/output widgets
  - Input - Single line text input field.
    - Float_Input - Floating point-only text input field.
    - Int_Input - Integer-only text input field.
    - Multiline_Input - Multiline text input field.
    - Secret_Input - Obscured text input field.
  - Output - Output-only text field
    - Multiline_Output - Multiline output-only text field.
- Menu_ - Abstract base class for Fltk menus
  - Choice - Pick-one menu button
  - Menu_Bar - A classic menubar
  - Menu_Button - A drop-down menu button