Tk Text widget FAQ

"A work in progress"

This FAQ concentrates on those issues involved in uses of the "text" widget. References to other widgets are minimized and no attept to teach Tcl was attempted.

The documentation of the text widget that comes with the Tk is really very good, so read it along with the examples given.

Tk Text widget FAQ

1) Top Level Issues
2) Font Issues

2.1) How to change a font to italic without having to specify it in full.
2.2) How do I specify a default menu (for example) font?
2.3) How to change all the widgets font at same time?
2.4) How to measure size of text with a certain font?
2.5) How to set all font sizes?
2.6) How list all available fonts?
2.7) How to use named fonts?
2.8) Need a font selection widget?
2.9) How can I tell if the font is a fixed-width font?
2.10) How to get list of font families?

3) Color Issues

3.1) How bright is a color?
3.2) How to call native color picker on platform?
3.3) How to i choose a good color combination for text?

4) Wrapping

4.1) How to increase the height of a text widget to get a full view of its word wrapped contents?

5) Indexes

5.1) What is the index of the start of the text?
5.2) What is the index of the end of the text?
5.3) What is the index of the end of the first line?
5.4) If the middle a word is at 2.2 where is it's beginning and end?

6) Getting information

6.1) how does one calculate the number of displayed lines in a text widget, as distinguished from the number of logical (\n-separated) line

7) Tags

7.1) How to change all text with the tag "aTag" to underline?
7.2) How make a mouse click on all text with the tag "aTag" produce a bell sound?
7.2) How to print out a message when the mouse flys over all text marked with the tag "aTag"?
7.3) How to list all tags being used in text?
7.4) How to test if a tag applies to a particular place?

7.1) Tag event bindings
7.2) Syntax highlighting
8) Marks

8.1) How to set mark at the second line seveth letter?
8.2) How to remove a mark?

9) Searching
10) Images
11) Buttons

11.1) How to add a button to a text?

12) Goto
13) Insert
14) Delete

14.1) How to delete all text?

15) Replace
16) Event Bindings
17) Use as console

17.1) How to make a text widget a console?

18) Unicode

18.1) How to display file in all possible encodings?
18.2) How check that an UTF-8 octet sequence is a complete character?

19) Persistance
20) autocomplete
21) balloon help
22) brace checking
23) text diff
24) VFS
25) linenumbers
26) Undo/Redo
27) Block selection
28) Text sorting
29) tailing
30) binary text
31) Drag and Drop
32) TextZoom
33) Printing

33.1) Can you use OpenOffice to print?
33.2) Printing Windows
33.3) Printing Unix
33.4 Printing Mac

34) Message Cataglog
35) Tile/Theme/Ttk
36) Folding text
37) Help

37.1) HTML as help files.

38) Invoking Browsers
39) What missing?

39.1) Typesetting
39.2) Asyncronous loading

40) Dealing with edit cursor
41) Dealing with mouse cursor
42) Defining and using tab stops
43) Only displaying part of a buffer
44) Indenting start of paragraph
45) Cut/Copy/Paste
46) MRU
47) Configuration files
48) Selection ?? Clipboard collision

48.1) How to clear the current selection (i.e unselect)
48.2) How to get the text of the current selected item?
48.3) How to test that the selection is owned by your?

49) Insert point
50) Mouse

50.1) How to handle a virtual mouse?

51) Read-only
52) Auto Indent
53) Horizontal scrollbar
54) Vertical scrollbar
55) Auto disappearing scrollbar
56) Inputting International characters

56.1) How to do right-left languages?
56.2) How to handle tcl files in different encodings?
56.3) How deal with different encodings?

57) Several windows into same text (peering)
58) File type recognition
59) Capitalization
60) Spell checking

60.1) Using OpenOffice as a spell-checker.

61) Tablification/De-tablification
62) Encryption
63) Generate nroff/html/latex output
64) Highlight word under mouse
65) ctags
66) Keystroke macros
67) Busy indication
68) Bookmarks
69) Piping input in/out of external utils
70) Change Tk definition of a word
71) Disabling auto-repeat on windows
72) Looping over text widget
73) Keyboard
74) Making it portable
75) Making it into a single file
76) Books
77) Web sites
78) Are there any Tcl Editors I can look at?

Key Features
Operates with other applications and systems

79) Error management
80) Handling application exit
81) Usefull Libraries
82) Key bindings

82.1) How change key u to U and back?
82.2) How report keybindings for each keystroke?

83) Icons

83.1) Where can I find some icons to use?

84) Highlighting
85) Generate PDF files
86) How can I atomatic translation of files via Bablefish?
86) Is character x in font y?
87) Multi File searching
88) Adding text tags via regular expressions.
89) Auto-Replace
90) Hidden text
91) Standard dialogs

91.1) choose directories
92.2) choose files
92.3) choose colors
92.4) choose fonts
92.5) Find
92.6) Find and Replace
92.7) Print
92.8) Print Preview
92.9) Page setup
92.10) Any simple modal dialog

92) Generic articles on tk text widget
93) Clipboard

93.1) Putting text onto clipboard?
93.2) Clearing the cliipboard?

94) Internationalization
95) How generate tables?
96) Scrolling multiple widgets at same time.
97) Scrolling
98) Spacing out lines

98.1) How to change spacing above each line?
98.2) How to change spacing below each line?
98.3) How to change space between all logical lines? (not wrapped lines)

99) Frame widgets

99.1) How to embedded a entry widget into a text widget?

Left overs
Out of scope

1) Top Level Issues

2) Font Issues

     Source: http://wiki.tcl.tk/1050    "font"
     Source: http://wiki.tcl.tk/451      "Practical Guide to Choosing Fonts"
     Source: http://wiki.tcl.tk/1129   "Changing all fonts in an application"
     Source: http://wiki.tcl.tk/8519    "font measure"
     Source: http://wiki.tcl.tk/3896    "A little font chooser"
   Source: http://wiki.tcl.tk/13139 "named fonts"

2.1) How to change a font to italic without having to specify it in full.

$w configure -font "[font actual [$w cget -font]] -slant italic"

2.2) How do I specify a default menu (for example) font?

option add *Menu.font $my_preferred_font

2.3) How to change all the widgets font at same time?

   foreach class {
       Button Checkbutton Entry Label Listbox
       Menu Menubutton Message Radiobutton Scale
   } {
       font create $class -family Helvetica -size 12
       option add *$class.font $class widgetDefault
   }
     font create Text -family courier -size 12
     option add *Text.font Text widgetDefault

2.4) How to measure size of text with a certain font?

        font measure $font

       The 'font measure' command does not expand newlines or tabs (it appears to treat each as a double-space), so it doesn't give a true indication of how wide a label (for example)            would be using the specified font and text.

   proc font:width {font text {w .}}

     {

     puts " measure = \[[font measure $font -displayof $w $text]\]"

   set max 0
     foreach line [split $text \n] {
          set width [font measure $font -displayof $w $line]
          if { $width > $max } { set max $width }
     }

     puts " max width = \[$max\]"
     return $max
   }

   The font man page says: "The return value is the total width in pixels of text, not including the extra pixels used by highly exagerrated characters such as cursive 'f'." So the only real    way to find the required width (and height) of a string is to put it into a label and get the size of the label:

   proc font:reqwidth {font text {w ""}} {

   for {set i 1} {[winfo exists $w.label-$i]} {incr i} {}
   set l $w.label-$i
   label $l -bd 0 -padx 0 -pady 0 -highlightthickness 0 \
       -font $font \
       -text $text
   set width [winfo reqwidth $l]
   set height [winfo reqheight $l]
   puts " reqwidth = \[$width\]"
   puts " reqheight = \[$height\]"
   destroy $l
   return $width
   }

   # demo code
    set font [font create -family courier -size 10]
    set text "new\t\nline"
    font:width $font $text
    font:reqwidth $font $text

2.5) How to set all font sizes?

2.6) How list all available fonts?

font names

2.7) How to use named fonts?

Named fonts are a great way to create and modify fonts on an application-wide basis. Just create a named font with \font create, then use that font name to create widgets or text elements. Then later you can use font configure to modify the named font, and all the text elements will be automagically updated. Here is a little code example, showing named fonts used both in a widget and on a canvas.

2.8) Need a font selection widget?

See: http://people.man.ac.uk/~zzcgudf/tcl/mwidx.html#fontdlg for dkf_chooseFontwidget.

See: Tk command tk_fontChoose

2.9) How can I tell if the font is a fixed-width font?

if {[font metrics $fontName -fixed]} { puts "fixedFont" }

2.10) How to get list of font families?

font families

3) Color Issues

See: http://wiki.tcl.tk/534 "Bag of Tk algorithms"

3.1) How bright is a color?

   proc brightness color {
        foreach {r g b} [winfo rgb . $color] break
        set max [lindex [winfo rgb . white] 0]
        expr {($r*0.3 + $g*0.59 + $b*0.11)/$max}
    } ;#RS, after [Kevin Kenny]

3.2) How to call native color picker on platform?

tk_chooseColor command

See: http://wiki.tcl.tk/1056 "tk_chooseColor"

3.3) How to i choose a good color combination for text?

See: http://wiki.tcl.tk/22218 "rgb combinations"
See: http://www.serice.net/rgb/

4) Wrapping

See: http://wiki.tcl.tk/20245 "full view wrapped text"

4.1) How to increase the height of a text widget to get a full view of its word wrapped contents?

    package require Tk
    bind . <F1> {console show}
    wm geometry . 260x600
    proc geom {x} {
        wm geometry . [format %dx600 $x]
    }
    button .br -text "reset text" -command reset
    pack .br -pady 5
    if {[expr {$tcl_version >= 8.5}]} { ;# as per MG's tip
        button .bv -text "full view" -command {.t configure -height [.t count -displaylines 1.0 end]}
    } else {
        button .bv -text "full view" -command adapt
    }
    pack .bv -side top
    set svar 255
    scale .sc -orient vertical -label "window width" -command geom -from 80 -to 800 -variable svar
    pack .sc -side left
    proc reset {} {
        catch {destroy .t}
        text .t -width 10 -wrap word -height 1
        pack .t -side left -fill x -expand 1 -pady 5 -padx 5
        for {set x 1} {$x<5} {incr x} {
            if {$x>1} {.t insert end \n}
            set first *
            for {set y 0} {$y < 21} {incr y} {
                .t insert end [format "%s%d.%02d" $first $x $y]
                set first " "
            }
            .t insert end \n
        }
    }

    proc adapt {{maxloop 100}} {
        .t see 1.0
        update idletasks
        set pos [.t index end]
        foreach {line col} [split $pos .] break
        incr line -1
        while {![llength [.t bbox $line.end]]} {
            incr maxloop -1
            if {!$maxloop} {
                  title . $h:aborted
                break
            }
            set h [.t cget -height]
            incr h
            .t configure -height $h
            wm title . [list $h height of .t]
            update idletasks
        }
    }

reset

5) Indexes

5.1) What is the index of the start of the text?

1.0

5.2) What is the index of the end of the text?

end

5.3) What is the index of the end of the first line?

1.end

5.4) If the middle a word is at 2.2 where is it's beginning and end?

{2.2 wordstart}

{2.2 wordend}

6) Getting information

See: http://wiki.tcl.tk/1754 "Text Widget Newline Wrapping"

6.1) how does one calculate the number of displayed lines in a text widget, as distinguished from the number of logical (\n-separated) line

   GPS answered a different question in c.l.t: how does one calculate the number of displayed lines in a text widget, as distinguished from the number of logical (\n-separated) lines:

   set start [.t index @0,0]
   set end [.t index @0,[winfo height .t]]
    expr $end - $start + 1

    # ...This returns the number of logical (\n-separated) lines currently displayed, which is not the same as the number of display lines on screen (which is very hard to calculate if        # font sizes differ). But, with tip 155:

   expr [.t count -displaylines @0,0 @0,[winfo height .t]] + 1

       # does the job.

7) Tags

7.1) How to change all text with the tag "aTag" to underline?

$w tag configure -underline 1

7.2) How make a mouse click on all text with the tag "aTag" produce a bell sound?

$w tag bind aTag <Button-1> { bell }

7.2) How to print out a message when the mouse flys over all text marked with the tag "aTag"?

$w tag bind aTag <Entry> { puts "over text with aTag" }

$w tag bind aTag <Leave> { puts "no more over text with aTag" }

7.3) How to list all tags being used in text?

$w tag names

7.4) How to test if a tag applies to a particular place?

$w tag names $index

7.1) Tag event bindings

See: http://wiki.tcl.tk/6101 "Behavior of break for text tag bindings"

7.2) Syntax highlighting

See: http://wiki.tcl.tk/4134 "Ctext"

See: http://wiki.tcl.tk/13989 "a debugger with syntax highlighting using ctext"
See: http://wiki.tcl.tk/22169 "Adding text widget tags using regular expressions"

8) Marks

8.1) How to set mark at the second line seveth letter?

$w mark set $tagName 2.7

8.2) How to remove a mark?

$w mark unset $tagName

9) Searching

See: http://wiki.tcl.tk/17286 "Searching in a text widget"

10) Images

10.1) How to add a image to a text?

image create photo myImage -file myImage.gif

$w image create {2.0 linestart} -image myImage -name embeddedImage

# Don't pack embedded images

11) Buttons

11.1) How to add a button to a text?

button .$w.button1 -text "Embedded button"

$w window create {1.0 lineend} -window $w.button1

# Don't pack embedded widgets

12) Goto

13) Insert

13.1) How to get current insert position?

13.2) How to move current insert position?

$w icursor $pos

# Put at start of text

$w icursor 0

# Put at end of text

$w icursor end

# Put start of selection

$w icursor sel.first

# Put at end of selection

$w icursor sel.last

14) Delete

14.1) How to delete all text?

$w delete 0 end

14.2)

15) Replace

16) Event Bindings

17) Use as console

     See: http://wiki.tcl.tk/1026    "A minimal console"
     See: http://wiki.tcl.tk/786   "console for Unix"
     See: http://code.activestate.com/recipes/65430-a-minimal-console/?in=lang-tcl    "Recipe 65430: A minimal console (Tcl) "

17.1) How to make a text widget a console?

   package require Tk

   destroy .console
    toplevel .console
    pack [text .console.cmd -wrap word] -expand yes -fill both
    bind .console.cmd <Return> evalConsoleCmd
    bind .console.cmd <Return> +break
    .console.cmd tag configure success -foreground \#008800
    .console.cmd tag configure failure -foreground red

    proc evalConsoleCmd {} {
        set c .console.cmd
        if {[$c compare {insert + 1 lines} < end]} then {
            set l [$c get {insert linestart} {insert lineend}]
            $c insert {end - 1 chars} \n[string trimright $l]
            $c mark set insert end
            $c see insert
        } else {
            if {[catch {
                set result [uplevel 1 [$c get end-1lines end-1chars]]
            } err]} then {
                $c insert end \n {} $err failure \n
            } else {
               $c insert end \n {} $result success \n
           }
       }
7 }

18) Unicode

    See: international section of this FAQ
    See: http://wiki.tcl.tk/1364    "Unicode"
    See: http://wiki.tcl.tk/515    "Unicode and UTF-8"
    See: http://wiki.tcl.tk/907    "A little Unicode editor"
    See: http://wiki.tcl.tk/699    "A simple Arabic renderer"
    See: http://wiki.tcl.tk/25658    "Reformatting Lines of Chinese Text"
    See: http://wiki.tcl.tk/515   "Unicode and UTF-8"

See: http://wiki.tcl.tk/517 "Unicode file reader"

18.1) How to display file in all possible encodings?

   proc display-all-encodings {} {
        set file [tk_getOpenFile]
        text .t -bg white -font "Times"
        pack .t -fill both -expand t
        foreach encoding [lsort -ascii [encoding names]] {
           set str [open $file r]
            fconfigure $str -encoding $encoding
            .t insert end "\nEncoding: $encoding\n[read $str]"
            close $str
        }
   }

18.2) How check that an UTF-8 octet sequence is a complete character?

       Lars H: A more compact way of checking that an UTF-8 octet sequence is a complete character is to use a regexp. This procedure checks whether a char is UTF-8:

   proc utf8 {char} {
      regexp {(?x) # Expanded regexp syntax, so I can put in comments :-)
           [\x00-\x7F] | # Single-byte chars (ASCII range)
           [\xC0-\xDF] [\x80-\xBF] | # Two-byte chars (\u0080-\u07FF)
           [\xE0-\xEF] [\x80-\xBF]{2} | # Three-byte chars (\u0800-\uFFFF)
           [\xF0-\xF4] [\x80-\xBF]{3} # Four-byte chars (U+10000-U+10FFFF, not suppoted by Tcl 8.5)
   } $char
   }
       (This regexp can be tightened a bit if one wishes to exclude ill-formed UTF-8; see Section 3.9 ("Unicode Encoding Forms") of the Unicode standard.) See UTF-8 bit by bit for an                explanation of how UTF-8 is constructed.

19) Persistance

See: http://www1.clearlight.com/~oakley/tcl/ttd/index.html ""ttd"

20) autocomplete

    See: http://taipudex.com/code/readme.htm   dcp package
    See: http://wiki.tcl.tk/20491                       "autocomplete"
See: http://wiki.tcl.tk/20215                       "Pure-tcl readline2"

8.6

prefix match ?-exact? ?-message string? ?-error options? list string
prefix longest list string
prefix all list string

See: http://www.tcl.tk/cgi-bin/tct/tip/195.html "A Unique Prefix Handling Command"

21) balloon help

     See: tklib package balloon
   See: http://wiki.tcl.tk/10551        "tooltip"
   See: http://wiki.tcl.tk/1954          "tooltips"
   See: http://wiki.tcl.tk/3060          "balloon help"

22) brace checking

See: http://wiki.tcl.tk/20325 "Balancing Open and Close Quotes in a TK text widget."

23) text diff

    See: http://wiki.tcl.tk/3108   "diff in Tcl"
    See: http://wiki.tcl.tk/26364    "DiffUtilTcl"
    See: http://github.com/pspjuth/DiffUtilTcl

24) VFS

     See: http://wiki.tcl.tk/2138       "VFS"
   See: http://wiki.tcl.tk/2466       "tclvfs"
   See: http://wiki.tcl.tk/25769   "Vfs for Sqlite"
     See: http://wiki.tcl.tk/12838   "vfs::http"
   See: http://wiki.tcl.tk/12063   "mk4vfs"
   See: http://wiki.tcl.tk/11846   "vfs::zip"
     See: http://wiki.tcl.tk/12328   "tclvfs gotchas"
   See: http://wiki.tcl.tk/12840   "vfs::ns"
   See: http://wiki.tcl.tk/12837   "vfs::ftp"
   See: http://wiki.tcl.tk/12832   "tclVFS examples"
   See: http://wiki.tcl.tk/8412       "vfs filesystem configuration"
   See: http://wiki.tcl.tk/15635   "ramvfs"
   See: http://wiki.tcl.tk/14131   "vfs::inmem"
   See: http://wiki.tcl.tk/12836   "tclVFS Hints and Tricks"
   See: http://www.tcl.tk/about/tclvfs.html    "Tcl Virtual File System"

25) linenumbers

See: http://wiki.tcl.tk/20916 "line numbers in text widget"

26) Undo/Redo

Some of these articles predate the built-in support for undo/redo and show the old manual way of doing it.

    See: http://wiki.tcl.tk/23381    "Undo, a few pointers at how to code the Undo function for a text editor"
    See: http://wiki.tcl.tk/12362    "Text widget undo/redo limitations and enhancements"
    See:http://wiki.tcl.tk/16681   "Undo and Redo undoable widgets"
    See: http://wiki.tcl.tk/1333     "Text widget undo/redo"
    See: http://wiki.tcl.tk/23381    "Undo, a few pointers at how to code the Undo function for a text editor"

   text .t -undo 0
   for {set i 0} {$i < 20} {incr i} {
       .t insert end "hello there $i"
   }
   text .t -undo 1
   .t insert end "add one more line"
   # Only show the middle 10 lines
   .t configure -startline 5 -endline 15
   # This should undo the action that isn't visible?
   .t undo edit

   proc do.undo {} {
       if [$::current_ht edit modified ] {
           if [catch {$::current_ht edit undo}] {return}
           }
      }

27) Block selection

See: http://wiki.tcl.tk/15471 "Simple Block Selection for Text Widget"

28) Text sorting

See: http://wiki.tcl.tk/15410 "Simple Text Widget Sort"

29) tailing

See: http://wiki.tcl.tk/1154 "Tail"

30) binary text

31) Drag and Drop

See: https://sourceforge.net/projects/tkdnd/

See: http://wiki.tcl.tk/14883 "Text Drag -Drag and Drop for Text Widget Selections"

32) TextZoom

33) Printing

See: http://wiki.tcl.tk/2496 "printing"

33.1) Can you use OpenOffice to print?

See: http://wiki.tcl.tk/14843 "TclOO -Rendering text pages in OpenOffice Writer from a Tcl application."

33.2) Printing Windows

See: http://wiki.tcl.tk/9846 "Printing text files under Windows"
See: http://wiki.tcl.tk/11319 "Printing under Windows"

33.3) Printing Unix

33.4 Printing Mac

34) Message Cataglog

     See: http://wiki.tcl.tk/1488       "msgcat"
     See: http://wiki.tcl.tk/20290       "Tk and msgcat"
   See: http://wiki.tcl.tk/14377       "msgcat-Ready Script Utility"

35) Tile/Theme/Ttk

Title does not match the "only things to do with text widget" idea of this FAQ but somehow I thought it was important enough to add anyway.

See: http://www.tkdocs.com/tutorial/styles.html "TkDocs - Tk =Tutorial - Styles and Themes"
See: http://wiki.tcl.tk/23461 "Problems using Tile/Ttk"

See: http://www.tcl.tk/about/ttk.html "Themed, Native GUI"

See: http://wiki.tcl.tk/14796 "Ttk"

See: http://wiki.tcl.tk/20064 "ttk::style"

See: http://wiki.tcl.tk/13636 "Applications using Tile"

See: http://wiki.tcl.tk/11075 "Tile"

36) Folding text

See: http://wiki.tcl.tk/12091 "Text widget elision"

37) Help

37.1) HTML as help files.

See: FAQ section on "Invoking browsers"

38) Invoking Browsers

See: http://wiki.tcl.tk/557 "Invoking browsers"

39) What missing?

39.1) Typesetting

39.2) Asyncronous loading

40) Dealing with edit cursor

41) Dealing with mouse cursor

42) Defining and using tab stops

43) Only displaying part of a buffer

44) Indenting start of paragraph

45) Cut/Copy/Paste

See: http://wiki.tcl.tk/14035 "Tk's copy and paste support"

46) MRU

See: http://wiki.tcl.tk/14324 "Most Recently Used (MRU) Menus"

47) Configuration files

See: http://wiki.tcl.tk/23917 "Config file using slave interp"
See: http://wiki.tcl.tk/13565 "Where to store application configuration files"

48) Selection ?? Clipboard collision

48.1) How to clear the current selection (i.e unselect)

$w selection clear

48.2) How to get the text of the current selected item?

selection get

48.3) How to test that the selection is owned by your?

selection own

49) Insert point

See: http://wiki.tcl.tk/1634 "How do I insert text programmatically at the current insertion point"

50) Mouse

50.1) How to handle a virtual mouse?

See: http://wiki.tcl.tk/17999 "VirtualMouse Cross Platform Mouse Handling"

51) Read-only

See: http://wiki.tcl.tk/1152 "Read-only text widget"

52) Auto Indent

See: http://wiki.tcl.tk/15463 "auto-indent"
See: http://wiki.tcl.tk/15619 "Maintaining indentation in a text widget when go to a new line"

53) Horizontal scrollbar

54) Vertical scrollbar

pack [scrollbar .y -command ".t yview"] -side right -fill y
pack [text .t -wrap word -yscrollc ".y set"] -side right -fill both -expand 1

55) Auto disappearing scrollbar

    See: http://wiki.tcl.tk/950    "Scroll bars that appear only when needed"

    Or use the package autoscroll in the tklib.
   package require autoscroll
   text .t -yscrollcommand ".scrolly set"
   scrollbar .scrolly -orient v -command ".t yview"
   pack .scrolly -side right -fill y
   pack .t -side left -fill both -expand 1
   ::autoscroll::autoscroll .scrolly

56) Inputting International characters

See: http://wiki.tcl.tk/9026 "i18n - Tcl for the world"

56.1) How to do right-left languages?

See: http://wiki.tcl.tk/1126 "Right-to-left entry widget"

56.2) How to handle tcl files in different encodings?

8.5 has "source -encoding encodingName fileName"

56.3) How deal with different encodings?

    Source: tcl man pages

   encoding convertfrom ?encoding? data Convert data to Unicode from the specified encoding. The characters in data are treated as binary data where the lower 8-bits of each            character is taken as a single byte. The resulting sequence of bytes is treated as a string in the specified encoding. If encoding is not specified, the current system encoding is used.

   encoding convertto ?encoding? string Convert string from Unicode to the specified encoding. The result is a sequence of bytes that represents the converted string. Each byte is           stored in the lower 8-bits of a Unicode character. If encoding is not specified, the current system encoding is used.

   encoding dirs ?directoryList? Tcl can load encoding data files from the file system that describe additional encodings for it to work with. This command sets the search path for *.enc    encoding data files to the list of directories directoryList. If directoryList is omitted then the command returns the current list of directories that make up the search path. It is an error    for directoryList to not be a valid list. If, when a search for an encoding data file is happening, an element in directoryList does not refer to a readable, searchable directory, that             element is ignored.

   encoding names Returns a list containing the names of all of the encodings that are currently available.

   encoding system ?encoding? Set the system encoding to encoding. If encoding is omitted then the command returns the current system encoding. The system encoding is used           whenever Tcl passes strings to system calls.

57) Several windows into same text (peering)

58) File type recognition

59) Capitalization

60) Spell checking

60.1) Using OpenOffice as a spell-checker.

    See: http://wiki.tcl.tk/14791    "tcluno"
    See: http://wiki.tcl.tk/15447    "Drive OpenOffice Calc with tcluno"
    See: http://wiki.tcl.tk/15681    "OpenOffice"

    60.2) Use GNU aspell

    See: Alphatk editor for example

61) Tablification/De-tablification

62) Encryption

See: http://wiki.tcl.tk/2198 "encryption"
See: http://wiki.tcl.tk/11888 "rc4"

63) Generate nroff/html/latex output

64) Highlight word under mouse

65) ctags

See: http://wiki.tcl.tk/6635 "Exuberant Ctags"
See: http://wiki.tcl.tk/2974 "Tags for Vi/ViM editing"

66) Keystroke macros

See: http://wiki.tcl.tk/15726 "Record and replay system for Tcl/Tk"
See: http://wiki.tcl.tk/209 "TKReplay"

67) Busy indication

See: http://www.tcl.tk/cgi-bin/tct/tip/321.html "Add a [tk busy] Command"

68) Bookmarks

69) Piping input in/out of external utils

See: http://wiki.tcl.tk/24735 "How can I run data through an external filter?"

    button .top.quit -text Quit -command exit ;
    set but [button .top.run -text "Run it" -command Run] ;
    pack .top.quit .top.run -side right ;

    label .top.l -text Command: -padx 0 ;
    entry .top.cmd -width 20 -relief sunken -textvariable command ;
    proc Run {} {
        global command input log but
        if [catch {open "|$command |& cat"} input] {
            $log insert end $input\n
        } else {
            fileevent $input readable Log
            $log insert end $command\n
            $but config -text Stop -command Stop
        }
    }

70) Change Tk definition of a word

71) Disabling auto-repeat on windows

72) Looping over text widget

See: http://wiki.tcl.tk/3246 "Looping over the contents of a text widget"

73) Keyboard

See: http://www.iit.demokritos.gr/~petasis "A virtual keyboard widget implementation"

74) Making it portable

75) Making it into a single file

76) Books

    "Effective Tcl/Tk Programming"    Mark Harrison, Michael McLennan
    See: http://wiki.tcl.tk/159        "BOOK Effective Tcl - Writing Better Programs in Tcl and Tk"

    Chapter 3 Handling Events
        3.1 The event loop
            3.1.1 Keyboard focus
            3.1.2 Forcing updates
            3.1.3 Handling long-running bindings
            3.1.4 Execution scope
        3.2 Simple examples using bind
            3.2.1 Selecting an item from a listbox
            3.2.2 Automatic button help
            3.2.3 Class bindings
        3.3 Syntax of the bind command                      << Usefull for text editing
            3.3.1 The event specification
            3.3.2 Percent subsitutions
        3.4 More complex events                               << Usefull for text editing
            3.4.1 Click, drag, drop
            3.4.2 Customizing the widget behavior
        3.5 Binding tags                                            << Usefull for text editing
            3.5.1 Default binding tags
            3.5.2 Using break to interrupt event processing
            3.5.3 Inverting bindings tags for groups of bindings
            3.5.4 Binding to a top-level window
        3.6 Debugging bindings
            3.6.1 Displaying bindings
            3.6.2 Monitoring events
        3.7 Animation
            3.7.1 Animation items on a canvas
            3.7.2 Debugging after events
            3.7.3 Library precedures for animation

    Chapter 5 "Using the Text Widget"                   << Usefull for text editing
        5.1 Understanding the text widget
           5.1.1 Indexing model
            5.1.2 Scrolling
            5.1.3 Using tags
           5.1.4 Text bindings
            5.1.5 Using marks
            5.1.6 Wrap modes
           5.1.7 Tab stops
        5.2 Simple text editor
        5.3 Read-only text display
        5.4 Appointment editor
            5.4.1 Using tags to apply styles
            5.4.2 Embedded windows
            5.4.3 Changing text bindings
            5.4.4 Retrieving appointments
        5.5 Hierarchical browser
            5.5.1 Hierarchical data
            5.5.2 Creating the heiarchical browser
            5.5.3 Using tags and marks


    "Practical Programming in Tcl and Tk", Fourth Edition      Brent Welch, Jeff Hobbs, Ken Jones
    See: http://wiki.tcl.tk/8449        "Book Practical Programming in Tcl and Tk, Fourth Edition"

"Graphical Applications with Tcl & Tk" Eric Foster-Johnson

Chapter 3 Interacting with the User

...

Fonts

Calling Code From Widets

Text Options

...
Chapter 5 Text Editing with Tcl and Tk

Entering Text

Creating Entry Widgets

Multiline text Widgets

When to Use a text Widet

Controlling the Text Widget Display

Deleting Text

Defining Positions in the Text

Inserting Text

Retrieving TExt

Connecting the text Widget to a Scrollbar

Setting the Keyboard Focus

Marks, Tags, and Embedded Windows

Marks

Using Tags to Control Fonts

Embeding Windows

Making Hypertext Links in the Text

Cut, Copy, and Paste with the text Widget

The Clipboard

The Clipboard and the Selection

Getting the Selection Text

Putting Text in the Clipboard

Clearing Text in the Clipboard

Retrieving Data from the Clipboard

Copy

Cut

Paste

Binding Events for Cut, Copy, and Paste

text Widget Efficiencey

Dumping the Contents of a text Widget

Searching Within the text Widget

Tcl String-Handling Commands

A Tcl-Based Text Editor

77) Web sites

    See: http://www.bacomatic.org/~dw/comp/tclurl/index.htm   "TCL-URL archive"
    See: http://wiki.tcl.tk                            "Tcl Wiki"
    See: http://www.tkdocs.com/tutorial        "Tk tutorial"
    See: http://code.activestate.com/recipes/langs/tcl/   "ActiveState Tcl Recipes"
    See: http://www.tkdocs.com/tutorial/text.html        "TkDocs - Tk =Tutorial - Text"

78) Are there any Tcl Editors I can look at?

    See: http://wiki.tcl.tk/9602        "A minimal editor"

    See: http://wiki.tcl.tk/1184        "Tcl Editors"
    See: http://wiki.tcl.tk/9623        "A minimal editor explained"
    See: http://wiki.tcl.tk/20542      "A small editor in 8.5.0"
    See: http://wiki.tcl.tk/24507      "Editing with different fonts"
    See: http://wiki.tcl.tk/21292      "HexEdit - an hexadecimal editor"
    See: http://code.activestate.com/recipes/68395-vwtcl-tk-text-file-viewer/?in=lang-tcl    "TK Text File Viewer"

    e:
    See: http://wiki.tcl.tk/15280        "e: a tiny editor plugin for eTcl"
    License: Open

With the eTcl distribution for PocketPC

a really compact editor that can be called from the eTcl console with a file or proc name,
called without argument, e just brings up the edit window, so one can switch
displays the content in a window that leaves room for the virtual keyboard
can save the content to file again, or evaluate it (e.g. for modified procs)
Most of edit functionality is from text anyway, just need menu items to invoke them

    ficedit
    See: http://newmagicprogs.x10hosting.com/?id=ficedit
    License: ??

    Alpha
    See: http://wiki.tcl.tk/6339        "Alpha"
    License: ???

Key Features

Cross-platform - use the same editor on Windows, Unix and MacOS X.
Very extensible and configurable - has a real (open source) language as a macro language
Multi-modal
Mode-specific syntax colouring, configurable with built in support for C/C++, HTML, Java, Tcl, Perl and 40 other modes.
Exceptionally powerful modes for HTML/CSS, LaTeX/BibTeX, Perl, Matlab, C++, Java, Tcl and Metafont
Some 40 others modes for TIP, Python, S+, R, Scheme, Igor, Postscript, Fortran, Gnuplot, Javascript, Ada, Caml, ChangeLog, Clan, Lisp, Modula2, email, make, Maple, Metafont, ObjectiveC, C#, Pascal, SAS, Scilab, Applescript, Setext, SPSS, Stata, SQL, Verilog, VB, XML... with syntax colouring for all of these modes.
File sets - organise your files and deal with sets independently, including operations like printing, ftp-mirroring, version control, archiving, etc.
Active user community writing additional modes, menus and other plugins, (e.g. here)
Largely open source, and easily customizable.
Configurable keyboard mapping
Contains helpers so you can easily add yet more modes!
Completely scriptable
Templates
Available either as a set of scripts or as a single standalone executable (or 'starkit')
Support for unlimited variety of plugins
Tearoff menus for easy access.
Automatic backup of files
Multi-byte (IME) Support

Programmer's Features

Support for more than 40 common programming languages
Automatic identification of mode according to file type, extension or first few lines
Sophisticated editing functions
Auto-indentation of individual lines or blocks of text (even as you cut and paste), and ability to shift-indent left or right.
Allows code 'folding'
Code competion
Code templates
Configurable colour schemes (e.g. green on black if you desire!)
Support to highlight words beginning with a specified sub-string
Automatic re-wrapping of text in comments
Spell-checking just inside comments
CTags support
Project specific Ctag file with option to create automatically when opened
User-definable code completion and new keywords
Built in FTP and HTTP clients to browse any number of remote servers
Sophisticated advanced regular expression search and replace (in single or multiple files or entire disk hierarchies)
Intelligent bracket/brace-matching (skips quoted literals, strings, etc) as you type
Project file-set support for grouping of different projects
File-set specific preferences (tabsize, indentation, column wrap, etc)
Quick insertion of strange ascii characters
Comment/Uncomment lines, paragraph or large blocks
Complete macro support, including saving, loading, editing and running of macros controlling all editing functions.
Configurable support for external tools (compilers, code checkers, etc)
Automatic lists of functions and marks in active file
On the fly or manual reformatting of code sections
Show line numbers for easier debugging

Documentation/Help Features

Extensive documentation
Online manuals and help
Very helpful mailing lists for users and developers
Large number of examples for many modes, menus, features.
Code template/Completions tutorials

Search functionality

Marking of function/section names in a file for quick navigation
Sophisticated search/replace (full grep/regexp or plain text, word-match, multi-file, ignore capital letters, preserve case, etc)
Full advanced regexp support for search and replace to match complex patterns, repetitions, etc
Regexp searching includes greedy and non-greedy quantifiers.
Search in entire document or selection only
Option to ignore matches in comments
Constrain matches to single or multiple lines
Incremental searches (forwards/backwards plain/regexp)
Find, find next, find previous, replace, replace all, etc.
Remembers recent search/replace strings for re-use
Can replace all in a hierarchy of files or any general file-set.
Search for numbers in any base or format.
Goto line
Bookmarks can be placed and returned to

Editing

Unlimited undo/redo
Cut, copy, paste including 'append' actions and re-indentation
Automatic re-wrapping of text (including text in comments)
Splitting of editing windows
Completely configurable key assignments
Large number of built in text transformations
'Electric' code completion/templating features
Multiple clipboards
Can show line numbers in windows
Select by character, word, line, paragraph, and delete similarly
Insert other files, names, date, time, etc.
Auto-update 'last modified' date in file
Drag and Drop editing (Windows, Unix only)
Word wrap at specified column with hard return
True soft-wrap by word or character for long lines (usually disabled for programming modes, but valuable for text modes)
Line length up to 30k allowed
Many convenient key-bindings for quick editing, can also be totally configured.

Fileset/Project features

Open multiple files in a single fileset
Access all filesets from a menu
Hide filesets temporarily
Fileset-specific tools
Configurable tabsize, indentation, encoding etc for each fileset
Define filesets by file-list, directory, hierarchy, or multi-part LaTeX document
Configurable version control for each fileset
Automatic update of fileset according to last edited file
Define user identity based on fileset

Unicode features

Supports editing of multi-byte and Unicode text
Sophisticaed regexp searching of Unicode.
Directly handles any of 82 different text encodings.
Open and save Unicode files

Operates with other applications and systems

Can edit the contents of .zip, .tar and other supported 'virtual file systems' directly (also remote ftp sites, for example).
Seamless interaction with almost every TeX installation in existence (including related dvi, ps, pdf, bib tools).
Integrates with spellcheckers (aspell, ispell, Excalibur)
Integrates with common version control systems (e.g. cvs)
Built in 'diff' file/directory visual comparison, and ability to patch differences back and forth between files.
Built in FTP support (you can even edit remote files)
Disk browsers
Built in text-only web-browsing (like Lynx), including support for frames -- see here.
Spawn off tex, compile, tcl, javac, etc. processes and capture their output (both stdout and stderr), even interact with them
On MacOS can send/receive apple-events.

    See: http://wiki.tcl.tk/9623        "A minimal editor explained"
    License: Open

    See: http://wiki.tcl.tk/10674      "A minimally extended minimal editor"
    License: Open

    See: http://wiki.tcl.tk/9602        "A minimal editor"
    License: Open

    See: http://wiki.tcl.tk/15240   "August html editor"
    License: Open

**Main features:

* Edit multiple files.
* Search and replace.
* Support for many of the standard HTML tags.
* Create and use templates.
* Dialog boxes for setting font size & color, inserting tables & images.

    See: http://wiki.tcl.tk/9600       "A basic editor"
    License: Open

    See: http://wiki.tcl.tk/907        "A little Unicode editor"
    License: Open

    See: http://wiki.tcl.tk/8898       "Simple text editor"
    License: Open

    See: http://wiki.tcl.tk/21292   "HexEdit - an hexadecimal editor"
    License: Open

    See: http://wiki.tcl.tk/13593    "ML tk Text Editor"
    License: Open

Some features

Basic tcl syntax highlighting
Procedure window, select a procedure to go directly to it
Right click on a word to have the word "copied" to the "find" window
Multiple windows open simultaneously
The editor can be invoked with file names on the command line, including wildcards (don't do too many)
The replace function
Undo/redo (RA2 but strangely "no select all"
Brace matching - highlight matching braces when cursor is on a brace (also quotes & square brackets)
Goto line number (control-g or "view" menu)
Added "font larger/smaller" to the view menu; 20th June 02 (v1.09)
Changed window system so only opens 1 toplevel window, uses frames & packing for window/file selection
Added a splash screen on startup to show "loading file ..." (v1.10)
Added a "search - grep" function
Don't syntax highlight files at startup, do when they are first viewed
The most recent find/replace strings weren't being stored at the start of the find/replace history

See: http://eddi.sourceforge.net/ "Eddi editor"
License: Open

See: http://code.google.com/p/ezdit/ "ezdit"

See: http://wiki.tcl.tk/22431 "eZdit"

License: GNU General Public License v3

ezdit is a cross-platform editor written in Tcl/Tk. Currently ezdit runs on Mac 、Linux and Microsoft Windows.

Features include syntax highlighting, auto-completion, code browsing, auto-indentation, etc.

It also support plugins which extend the editor's functionality.

    See: http://www.ne.jp/asahi/kazuo/sasagawa/ "FVE editor"
    License: Open

    See: http://glimmer.sourceforge.net/   "Glimmer editor"
    License: Open

    See: http://fastbase.co.nz/edit/index.html    "ML Text Editor"
    License: Open

Features:

Syntax Highlighting (tcl/tk).
Text Undo
Multiple Windows.
Procedure list with click to goto proc.
Right click on word for quick find.
Editor loads all files open since last exit & remembers "find" history.
Standard search and replace features.
Goto Line number feature.

See: http://sites.google.com/site/msedit/home "MSEdit"
License: Open

Syntax Highlighting, User Highlighting
Proc listing with positional feedback
Reindenting of TCL Code
Full TCL help (8.4.12)
Windows and Linux versions
Bookmarking
Proc relative line numbering (For TCL error messages)
Quick searching in all open files and directories
PDF printing
Project files with full context save
Block commenting
Interactive TCL console
File Difference mechanism
Portable
Freeware

    See: http://aune.lpl.univ-aix.fr/projects/multext/MtScript/ "MtScript"
    License: Open

MtScript is a multi-lingual text editor that enables using several different writing systems (Latin, Arabic, Cyrillic, Greek, Hebrew, Chinese, Japanese, Korean, etc.) in the same document. MtScript provides typical editing functions such as insertion and deletion, even for text containing portions of writing in opposite directions. In addition, MtScript allows the user to explicitly associate portions of the text with a particular language, and to associate keyboarding rules with any language. Different types of character sets (single byte, multiple-byte) can also be handled.

    See: http://www.pspad.com/        "PSPad"
    License: Open

    See: http://sourcenav.sourceforge.net/    "Source-Navigator"
    License: ???

    See: http://imagic.weizmann.ac.il/~dov/dov-pd.html "taved"
    License: ???

   A Hebrew editor in Tcl/Tk for Unix.

    See: http://wiki.tcl.tk/3773    "tkdiff"
    License: ???

    See: http://yapakit.fortran.pagesperso-orange.fr/ "YapKit"
    License: ???

    See: http://home.earthlink.net/~joseph-ja/programs.html "TkNotepad"
    License: ???

    See: http://developer.berlios.de/projects/countessmod/ "ML"
    License: GNU

    See: http://www.iki.fi/petterik/             "ue - Unicode Editor 0.1"

See: http://wiki.tcl.tk/13591 "ML - Heavily Modified & Improved"

Uses a Panned window for the Procs which is resizeable so you can maximize the horizontal area of the file being editted
You can Run the file (after saving)
You can Run the file ../../main.tcl above it,which is useful for testing unwrapped starkits)
Can have different splits for each file being editted
Made the Popup window on right click Tearoff
Added "Save" choice to the popup
Added "Save & Run" choice to the popup
Added "Save & Run main.tcl" choice to the popup
Modified logic so popup is placed correctly when not maximized
Does not Maximize the Window on start
Increased the size of the font for procs
Colors are now variables and are loaded/saved in ml_cfg/ml
ml_cfg.ml is now written in the folder from which ml was run, NOT in the edited file's folder.
Modified the Procedure Navigator text and the About window text to reflect that this is v1.20 (ZipGuy) version

79) Error management

See: http://www.cs.man.ac.uk/~fellowsd/tcl/mwidx.html#error for advance error reporting dialog.

80) Handling application exit

See: http://wiki.tcl.tk/20639 "AtExit for tcl 8.5"
See: http://wiki.tcl.tk/3958 "AtExit handlers"

81) Usefull Libraries

Tklib - normally part of any distro See: http://tcllib.sourceforge.net
Tcllib - normally part of any distro See: http://tcllib.sourceforge.net

82) Key bindings

See: http://wiki.tcl.tk/534 "Bag of Tk algorithms"

82.1) How change key u to U and back?

   bind $w <u> {event generate . U; break}
        # To regain the original behavior:
   bind $w X {}

82.2) How report keybindings for each keystroke?

bind $w <KeyPress> {puts {%%K=%K %%A=%A}}

83) Icons

83.1) Where can I find some icons to use?

http://www.satisoft.com/tcltk/icons/

See: http://wiki.tcl.tk/5185 "ICONS"

84) Highlighting

    84.1) How to hightlight all the way across a widget not just the text?
    Include the newline

   $text tag add highlight $line.0 $line.0+1l

85) Generate PDF files

    See: http://wiki.tcl.tk/13449        "pdf4tcl"
    See: http://wiki.tcl.tk/24593        "High-level wrapper for pdf4tcl"
    See: http://wiki.tcl.tk/2375       "PDF"

86) How can I atomatic translation of files via Bablefish?

   package require http

   proc translate {text from to} {
        # ::http::config -proxyhost proxy -proxyport 80
        set url "http://babelfish.altavista.com/tr"
        set query [::http::formatQuery doit done intl 1 tt urltext trtext $text lp ${from}_${to}]
        set token [::http::geturl $url -query $query]
        regexp {<td bgcolor=white class=s><div style=padding:10px;>([^<]*)</div></td>} \
           [::http::data $token] dummy translation

        if {1} {
        set name out.html
        set fp [open $name w]
        puts $fp [::http::data $token]
        close $fp
        global tcl_platform
        if {$tcl_platform(platform) == "windows"} {
            exec cmd /c start $name &
        } else {
            exec mozilla file://[pwd]/$name &
        }
   }
   return $translation
}

puts [translate "foot" en zh]
exit

86) Is character x in font y?

Sure, call font actual with the character and compare the results to font actual without the character. If they are different, the font doesn't contain that character.

87) Multi File searching

See: http://wiki.tcl.tk/8405 "A grep-like utility"
See: http://wiki.tcl.tk/3751 "A little file searcher"

88) Adding text tags via regular expressions.

See section on syntax highlighting. (Since this is one technique for doing that.)

89) Auto-Replace

See: http://wiki.tcl.tk/20636 "autoreplace"

90) Hidden text

See: http://wiki.tcl.tk/12091 "Text widget elision"

91) Standard dialogs

91.1) choose directories

See: tk command tk_chooseDirectory

92.2) choose files

        See: tk command tk_getOpenFile
        See: tk command tk_getSaveFile
        See: tk command tk_get

92.3) choose colors

See: tk command tk_chooseColor
See: http://wiki.tcl.tk/1056 "tk_chooseColor"

92.4) choose fonts

See: tk command "tk chooseFont"

92.5) Find

There is no standard find dialog in Tk.

92.6) Find and Replace

There is no standard find and replace dialog in Tk.

92.7) Print

There is no standard print dialog in Tk.

92.8) Print Preview

There is no stadndard print preview dalog in Tk.

92.9) Page setup

There is no standard page setup dialog in Tk.

92.10) Any simple modal dialog

        See: tk command tk_dialog
        See: tk command tk_messageBox
        See: http://wiki.tcl.tk/9183            "An option dialog"
        See: tklib package http://wiki.tcl.tk/13932    "swaplist"

92) Generic articles on tk text widget

    See: http://www.tkdocs.com/tutorial/text.html        "TkDocs - Tk =Tutorial - Text"
    See: "Effective Tcl/Tk Programming" Chapter 5 "Using the Text Widget"
    See: "Practical Programming in Tcl and Tk" 4th Edition Chapter 36 "The Text Widget"

93) Clipboard

    See: http://wiki.tcl.tk/1423            "clipboard"
    See: http://wiki.tcl.tk/15647          "Copy image to and from the Windows clipboard"
    See: http://wiki.tcl.tk/24548          "ClipboardMonitor"
    See: http://wiki.tcl.tk/1023            "Text Clipboard"
    See: http://wiki.tcl.tk/14035          "Tk's copy and paste support"
    See: http://wiki.tcl.tk/3769            "tk_textCopy"
    See: http://wiki.tcl.tk/3770            "tk_textCut"
    See: http://wiki.tcl.tk/3771            "tk_textPaste"

93.1) Putting text onto clipboard?

clipboard append $text

93.2) Clearing the cliipboard?

clipboard clear

94) Internationalization

    See: http://www.tcl.tk/doc/howto/i18n.html        "How to Use Tcl 8.1 Internationalization Features"
    See: http://wiki.tcl.tk/1816            "An i15d date chooser"
    See: http://wiki.tcl.tk/1614            "i18n - Writing for the world"

95) How generate tables?

???

96) Scrolling multiple widgets at same time.

See: http://wiki.tcl.tk/9254 "multi scrolling"

97) Scrolling

98) Spacing out lines

98.1) How to change spacing above each line?

$w configure -spacing1 $newValue

98.2) How to change spacing below each line?

$w configure -spacing3 $newValue

98.3) How to change space between all logical lines? (not wrapped lines)

$w configure -spacing2 $newValue

99) Frame widgets

99.1) How to embedded a entry widget into a text widget?

frame $w.frame1

# add what ever widgets you want to $w.frame1

$w window create {2.0 linestart} -window $w.frame1

# Don't pack embedded widgets

Left overs

These articles I ran across while producing this FAQ.

1) How to source a file and pass arguments to the script. See: http://wiki.tcl.tk/10025 source with args
2) How to embedded non-Tk windows in a Tk app or visa-versa?

   See: http://wiki.tcl.tk/2870 "Combining GUI applications developed with Tk and 'native' Windows toolkits"
    See: http://wiki.tcl.tk/13059 "How to embed a non-Tk GUI into a Tk frame"
3) How to call a lot of native windows functions?
    See: http://twapi.magicsplat.com Tcl Windows API (TWAPI)
4) IPC?
    See: http://wiki.tcl.tk/1228    "Inventory of IPC methods"
5) Coding
    See: http://wiki.tcl.tk/11290 "Tk coding styles and philosophies"
6) Command splitting
    See: http://wiki.tcl.tk/21701    "cmdSplit"
7) Generate PS output
    See: http://wiki.tcl.tk/25703    "pentcl"
8) Command Line processing
    See: tcllib package cmdline
9) MAC computer issues
    See: http://www.codebykevin.com/opensource/tutorial.html        "How to Build Tcl/Tk Application Bundles: the Mac Way"
    See: http://www.codebykevin.com/opensource/xplat_oss.html     "Cross-platform Tcl/Tk Widgets"
    See: http://www.codebykevin.com/opensource/oss.html           "Open-Source Packages"
10) auto-repeat
    See: http://wiki.tcl.tk/23677    "disable autorepeat under Windows"
11) Increase the height of a text widget to get a full view of its word wrapped contents
    See: http://wiki.tcl.tk/20245    "full view wrapped text"
    See: http://wiki.tcl.tk/10031    "Show me all!"
12)
    See: http://wiki.tcl.tk/17166    "Revert -Providing 'Revert' and Save Prompt Functionality to Text Editors"
13) Text zooming
    See: http://wiki.tcl.tk/15868    "TextZoom -Using mousewheel scrolling events to interactively re-size text widget content"
14) Windows
    See: http://www.tkdocs.com/tutorial/windows.html    "TkDocs - Tk =Tutorial - Windows and Dialogs"
    See: http://wiki.tcl.tk/1074        "Register file types under Windows"
    See: http://wiki.tcl.tk/3285        "Playing with Windows file associations"
    See: http://wiki.tcl.tk/1264        "registry"
    See: http://wiki.tcl.tk/13565      "Where to store application configuration files"
    See: http://wiki.tcl.tk/1795        "Tcl as an NT Service"
    See: http://wiki.tcl.tk/1797        "tclsvc - Tcl as an NT Service"
    See: http://wiki.tcl.tk/9886        "TWAPI"
    See: http://wiki.tcl.tk/1008        "Microsoft Windows and Tk"
    See: http://wiki.tcl.tk/3731        "Using Windows Controls in Tk Windows"
15)
    See: http://wiki.tcl.tk/1917        "Text variable for text widget"
16)
    See: http://wiki.tcl.tk/8674        "custom cursors"
    See: http://wiki.tcl.tk/1425        "cursors"
    See: http://wiki.tcl.tk/3051        "cursor"

Out of scope

1) How do I package an application?

Saturday, October 2, 2010