- Page Adding and Extending Widgets  
- Clarify Fl_Window::damage(uchar) handling - seems confused/wrong? ORing value doesn't match setting behaviour in FL_Widget.H! - Clarify Fl_Widget::test_shortcut() explanations. Fl_Widget.h says Internal Use only, but subclassing chapter gives details!  
- Page Drawing Things in FLTK  
-  add an Fl_Draw_Area_Cb typedef to allow fl_scroll(...) to be doxygenated? 
- Member Fl_Browser_::scrollbar_width  () const
- This method should eventually be removed in 1.4+  
- Member Fl_Browser_::scrollbar_width  (int width)
- This method should eventually be removed in 1.4+  
- Member Fl_Browser_::sort  (int flags=0)
- Add a flag to ignore case  
- Class Fl_Button  
- Refactor the doxygen comments for Fl_Button type() documentation. - Refactor the doxygen comments for Fl_Button when() documentation.  
- Class Fl_Chart  
- Refactor Fl_Chart::type() information. 
- Class Fl_Choice  
- Refactor the doxygen comments for Fl_Choice changed() documentation. 
- Class Fl_Counter  
- Refactor the doxygen comments for Fl_Counter type() documentation. 
- Member Fl_Cursor  
- enum Fl_Cursor needs maybe an image.  
- Member Fl_File_Input::errorcolor  () const
- Better docs for Fl_File_Input::errorcolor() - is it even used?  
- Member Fl_Group::sizes  ()
- Should the internal representation of the sizes() array be documented?  
- Member fl_height  (int font, int size)
- In the future, when the XFT issues are resolved, this function should simply return the 'size' value.  
- Member Fl_Input_::handle_mouse  (int, int, int, int, int keepmark=0)
- Add comment and parameters  
- Member Fl_Input_::handletext  (int e, int, int, int, int)
- Add comment and parameters  
- Member fl_intptr_t  
- typedef's fl_intptr_t and fl_uintptr_t should be documented.  
- Struct Fl_Label  
- There is an aspiration that the Fl_Label type will become a widget by itself. That way we will be avoiding a lot of code duplication by handling labels in a similar fashion to widgets containing text. We also provide an easy interface for very complex labels, containing html or vector graphics. However, this re-factoring is not in place in this release.  
- Member Fl_Labeltype  
- The doxygen comments are incomplete, and some labeltypes start with an underscore. Also, there are three external functions undocumented (yet):
- fl_define_FL_SHADOW_LABEL()
- fl_define_FL_ENGRAVED_LABEL()
- fl_define_FL_EMBOSSED_LABEL() 
 
- Member Fl_Menu_::add  (const char *, int shortcut, Fl_Callback *, void *=0, int=0)
- Raw integer shortcut needs examples. Dependent on responses to http://fltk.org/newsgroups.php?gfltk.development+v:10086 and results of STR#2344  
- Member fl_old_shortcut  (const char *s)
- Fix these silly legacy issues in a future release to support more predictable behavior for the modifier keys.  
- Member Fl_Preferences::get  (const char *entry, void *value, const void *defaultValue, int defaultSize, int maxSize)
- maxSize should receive the number of bytes that were read.  
- Member fl_reset_spot  (void)
- provide user documentation for fl_reset_spot function  
- Member Fl_Scroll::bbox  (int &, int &, int &, int &)
- The visibility of the scrollbars ought to be checked/calculated outside of the draw() method (STR #1895).  
- Member fl_set_spot  (int font, int size, int X, int Y, int W, int H, Fl_Window *win=0)
- provide user documentation for fl_set_spot function  
- Member fl_set_status  (int X, int Y, int W, int H)
- provide user documentation for fl_set_status function  
- Member Fl_String  
- FIXME: temporary (?) typedef to mark UTF-8 and Unicode conversions  
- Member Fl_Text_Display::display_insert  ()
- Unicode?  
- Member Fl_Text_Display::extend_range_for_styles  (int *start, int *end)
- Unicode?  
- Member Fl_Text_Display::handle_vline  (int mode, int lineStart, int lineLen, int leftChar, int rightChar, int topClip, int bottomClip, int leftClip, int rightClip) const
- we need to handle hidden hyphens and tabs here!  - we handle all styles and selections  - we must provide code to get pixel positions of the middle of a character as well   
- Member Fl_Text_Display::overstrike  (const char *text)
- Unicode? Find out exactly what we do here and simplify.  
- Member Fl_Text_Display::position_to_line  (int pos, int *lineNum) const
- What does this do?  
- Member Fl_Text_Display::position_to_linecol  (int pos, int *lineNum, int *column) const
- a column number makes little sense in the UTF-8/variable font width environment. We will have to further define what exactly we want to return. Please check the functions that call this particular function.  
- Member Fl_Text_Display::scroll  (int topLineNum, int horizOffset)
- Column numbers make little sense here.  
- Member Fl_Text_Display::shortcut  () const
- FIXME : get set methods pointing on shortcut_ have no effects as shortcut_ is unused in this class and derived!  
- Member Fl_Text_Display::shortcut  (int s)
- FIXME : get set methods pointing on shortcut_ have no effects as shortcut_ is unused in this class and derived!  
- Member Fl_Text_Display::wrap_mode  (int wrap, int wrap_margin)
- we need new wrap modes to wrap at the window edge and based on pixel width or average character width.  
- Member Fl_Text_Display::wrapped_column  (int row, int column) const
- What does this do and how is it useful? Column numbers mean little in this context. Which functions depend on this one? - Unicode?   
- Member Fl_Text_Display::wrapped_row  (int row) const
- What does this do and how is it useful? Column numbers mean little in this context. Which functions depend on this one?  
- Member Fl_Tiled_Image::Fl_Tiled_Image  (Fl_Image *i, int W=0, int H=0)
- Fix Fl_Tiled_Image as background image for widgets and windows and fix the implementation of Fl::scheme(const char *).  
- Member Fl_Tree::handle  (int e)
- add Fl_Widget_Tracker (see Fl_Browser_.cxx::handle())  
- Member Fl_Tree::is_scrollbar  (Fl_Widget *w)
- should be const  
- Member Fl_Tree::show_self  ()
- should be const  
- Member Fl_When  
- doxygen comments for values are incomplete and maybe wrong or unclear  
- Member Fl_Widget::argument  () const
- The user data value must be implemented using intptr_t or similar to avoid 64-bit machine incompatibilities.  
- Member Fl_Widget::argument  (long v)
- The user data value must be implemented using intptr_t or similar to avoid 64-bit machine incompatibilities.  
- Member Fl_Widget::type  () const
- Explain "simulate RTTI" (currently only used to decide if a widget is a window, i.e. type()>=FL_WINDOW ?). Is type() really used in a way that ensures "Forms compatibility" ?  
- Member Fl_Window::show  ()
- Check if we can remove resetting the current group in a later FLTK version (after 1.3.x). This may break "already broken" programs though if they rely on this "feature". 
- Member Fl_Window::show  (int argc, char **argv)
- explain which system parameters are set up. 
- Page Handling Events  
- Add details on how to detect repeating keys, since on some X servers a repeating key will generate both FL_KEYUP and FL_KEYDOWN, such that to tell if a key is held, you need Fl::event_key(int) to detect if the key is being held down during FL_KEYUP or not. 
- Page Unicode and UTF-8 Support  
- Do we need this info about planes? -  Work through the code and this documentation to harmonize the [OksiD] and [fltk2] functions. -  Verify 16/24 bit Unicode limit for different character sets? OksiD's code appears limited to 16-bit whereas the FLTK2 code appears to handle a wider set. What about illegal characters? See comments in fl_utf8fromwc() and fl_utf8toUtf16().