2001-11-27 05:09:45 +03:00
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<HTML><BODY>
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<HR break>
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<H2><A name=Fl_Input>class Fl_Input</A></H2>
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<HR>
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<H3>Class Hierarchy</H3>
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<UL>
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<PRE>
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<A href=Fl_Input_.html#Fl_Input_>Fl_Input_</A>
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+----<B>Fl_Input</B>
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+----<A href=Fl_Float_Input.html#Fl_Float_Input>Fl_Float_Input</A>, <A href=Fl_Int_Input.html#Fl_Int_Input>Fl_Int_Input</A>,
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<A href=Fl_Multiline_Input.html#Fl_Multiline_Input>Fl_Multiline_Input</A>, <A href=Fl_Secret_Input.html#Fl_Secret_Input>Fl_Secret_Input</A>
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</PRE>
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</UL>
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<H3>Include Files</H3>
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<UL>
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<PRE>
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#include <FL/Fl_Input.H>
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</PRE>
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</UL>
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<H3>Description</H3>
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<P>This is the FLTK text input widget. It displays a single line of text
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and lets the user edit it. Normally it is drawn with an inset box and
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a white background. The text may contain any characters (even 0), and
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will correctly display anything, using ^X notation for unprintable
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control characters and \nnn notation for unprintable characters with
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the high bit set. It assumes the font can draw any characters in the
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ISO-8859-1 character set.
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2001-08-02 01:24:49 +04:00
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2001-11-27 05:09:45 +03:00
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<CENTER><TABLE border=1 WIDTH=90% summary="Fl_Input keyboard and mouse bindings.">
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2001-11-27 05:09:45 +03:00
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<TR><TD WIDTH=200><B>Mouse button 1</B></TD><TD>Moves the cursor to
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this point. Drag selects characters. Double click selects words.
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Triple click selects all text. Shift+click extends the selection.
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When you select text it is automatically copied to the clipboard.
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</TD></TR>
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2001-11-27 05:09:45 +03:00
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<TR><TD><B>Mouse button 2</B></TD><TD>Insert the clipboard at
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the point clicked. You can also select a region and replace it with the
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clipboard by selecting the region with mouse button 2.
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</TD></TR>
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<TR><TD><B>Mouse button 3</B></TD><TD>Currently acts like button 1.</TD></TR>
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<TR><TD><B>Backspace</B></TD><TD>Deletes one character to the left, or
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deletes the selected region.</TD></TR>
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<TR><TD><B>Enter</B></TD><TD>May cause the callback, see when().</TD></TR>
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<TR><TD><B>^A or Home</B></TD><TD>Go to start of line.</TD></TR>
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<TR><TD><B>^B or Left</B></TD><TD>Move left</TD></TR>
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<TR><TD><B>^C</B></TD><TD>Copy the selection to the clipboard</TD></TR>
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<TR><TD><B>^D or Delete</B></TD><TD>Deletes one character to the right
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or deletes the selected region.</TD></TR>
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<TR><TD><B>^E or End</B></TD><TD>Go to the end of line.</TD></TR>
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<TR><TD><B>^F or Right</B></TD><TD>Move right</TD></TR>
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<TR><TD><B>^K</B></TD><TD>Delete to the end of line (next \n character)
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or deletes a single \n character. These deletions are all concatenated
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into the clipboard.</TD></TR>
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<TR><TD><B>^N or Down</B></TD><TD>Move down (for Fl_Multiline_Input
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only, otherwise it moves to the next input field).</TD></TR>
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<TR><TD><B>^P or Up</B></TD><TD>Move up (for Fl_Multiline_Input only,
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otherwise it moves to the previous input field).</TD></TR>
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<TR><TD><B>^U</B></TD><TD>Delete everything.</TD></TR>
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<TR><TD><B>^V or ^Y</B></TD><TD>Paste the clipboard</TD></TR>
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<TR><TD><B>^X or ^W</B></TD><TD>Copy the region to the clipboard and
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delete it.</TD></TR>
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<TR><TD><B>^Z or ^_</B></TD><TD>Undo. This is a single-level undo
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mechanism, but all adjacent deletions and insertions are concatenated
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into a single "undo". Often this will undo a lot more than you
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expected.</TD></TR>
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<TR><TD><B>Shift+move</B></TD><TD>Move the cursor but also extend the
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selection.</TD></TR>
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2001-11-27 05:09:45 +03:00
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<TR><TD><B>RightCtrl or
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<BR>Compose</B></TD><TD><a name=compose>Start</A>
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a <A href="events.html#compose">compose-character</A>
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sequence. The next one or two keys typed define the character to
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insert (see table that follows.)
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<p>For instance, to type "<22>" type [compose][a]['] or [compose]['][a].
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<P>The character "nbsp" (non-breaking space) is typed by using
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[compose][space].
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2001-08-02 01:24:49 +04:00
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2001-11-27 05:09:45 +03:00
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<P>The single-character sequences may be followed by a space if
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necessary to remove ambiguity. For instance, if you really want to
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type "<22>~" rather than "<22>" you must type [compose][a][space][~].
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2001-11-27 05:09:45 +03:00
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<p>The same key may be used to "quote" control characters into the
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text. If you need a <tt>^Q</tt> character you can get one by typing
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[compose][Control+Q].
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2001-11-27 05:09:45 +03:00
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<p>X may have a key on the keyboard
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defined as <tt>XK_Multi_key</tt>. If so this key may be used as well
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as the right-hand control key. You can set this up with the program
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<tt>xmodmap</tt>.
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2001-08-02 01:24:49 +04:00
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2001-11-27 05:09:45 +03:00
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<p>If your keyboard is set to support a foreign language you should
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also be able to type "dead key" prefix characters. On X you will
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actually be able to see what dead key you typed, and if you then move
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the cursor without completing the sequence the accent will remain
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inserted.
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</TABLE></CENTER>
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2001-08-02 01:24:49 +04:00
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2001-11-27 05:09:45 +03:00
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<!-- NEW PAGE -->
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<center><table border=1 summary="Character Composition Table">
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<caption align="top">Character Composition Table</caption>
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<tr>
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<th>Keys</th><th>Char</th>
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<th>Keys</th><th>Char</th>
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<th>Keys</th><th>Char</th>
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<th>Keys</th><th>Char</th>
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<th>Keys</th><th>Char</th>
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<th>Keys</th><th>Char</th>
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</tr><tr>
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<td align=center><TT>sp</TT></td><td align=center><small>nbsp</small></td>
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<td align=center><TT>*</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>` A</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>D -</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>` a</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>d -</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>!</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>+ -</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' A</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>~ N</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' a</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>~ n</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>%</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>2</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>A ^</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>` O</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>^ a</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>` o</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>#</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>3</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>~ A</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' O</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>~ a</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' o</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>$</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>'</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>: A</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>^ O</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>: a</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>^ o</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>y =</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>u</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>* A</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>~ O</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>* a</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>~ o</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>|</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>p</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>A E</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>: O</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>a e</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>: o</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>&</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>.</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>, C</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>x</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>, c</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>- :</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>:</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>,</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>E `</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>O /</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>` e</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>o /</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>c</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>1</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' E</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>` U</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' e</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>` u</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>a</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>o</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>^ E</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' U</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>^ e</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' u</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>< <</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>> ></tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>: E</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>^ U</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>: e</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>^ u</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>~</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>1 4</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>` I</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>: U</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>` i</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>: u</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>-</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>1 2</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' I</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' Y</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' i</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>' y</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>r</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>3 4</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>^ I</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>T H</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>^ i</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>t h</tt></td><td align=center><EFBFBD>
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</tr><tr>
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<td align=center><TT>_</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>?</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>: I</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>s s</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>: i</tt></td><td align=center><EFBFBD></td>
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<td align=center><TT>: y</tt></td><td align=center><EFBFBD>
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</table></center>
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2001-08-02 01:24:49 +04:00
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2001-11-27 05:09:45 +03:00
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<H3>Methods</H3>
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<CENTER>
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<TABLE width=90% summary="Fl_Input methods.">
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<TR><TD align=left valign=top>
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<UL>
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2001-11-27 05:09:45 +03:00
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<LI><A href=#Fl_Input.Fl_Input>Fl_Input</A></LI>
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<LI><A href=#Fl_Input.~Fl_Input>~Fl_Input</A></LI>
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<LI><A href=#Fl_Input.cursor_color>cursor_color</A></LI>
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</UL>
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</TD><TD align=left valign=top>
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<UL>
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2001-11-27 05:09:45 +03:00
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<LI><A href=#Fl_Input.index>index</A></LI>
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<LI><A href=#Fl_Input.size>size</A></LI>
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</UL>
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</TD><TD align=left valign=top>
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<UL>
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<LI><A href=#Fl_Input.static_value>static_value</A></LI>
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<LI><A href=#Fl_Input.textcolor>textcolor</A></LI>
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</UL>
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</TD><TD align=left valign=top>
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<UL>
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<LI><A href=#Fl_Input.textfont>textfont</A></LI>
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<LI><A href=#Fl_Input.textsize>textsize</A></LI>
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</UL>
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</TD><TD align=left valign=top>
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<UL>
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<LI><A href=#Fl_Input.value>value</A></LI>
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<LI><A href=#Fl_Input.when>when</A></LI>
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</UL>
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</TD></TR>
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</TABLE>
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</CENTER>
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<H4><A name=Fl_Input.Fl_Input>Fl_Input::Fl_Input(int x, int y, int w,
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int h, const char *label = 0)</A></H4>
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Creates a new <TT>Fl_Input</TT> widget using the given position, size,
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and label string. The default boxtype is <TT>FL_DOWN_BOX</TT>.
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<H4><A name=Fl_Input.~Fl_Input>virtual Fl_Input::~Fl_Input()</A></H4>
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Destroys the widget and any value associated with it.
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<H4><A name=Fl_Input.value>const char *Fl_Input::value() const
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<BR> int Fl_Input::value(const char*)
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<BR> int Fl_Input::value(const char*, int)</A></H4>
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The first form returns the current value, which is a pointer to the
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internal buffer and is valid only until the next event is handled.
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<P>The second two forms change the text and set the mark and the point
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to the end of it. The string is copied to the internal buffer. Passing <TT>
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NULL</TT> is the same as "". This returns non-zero if the new value is
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different than the current one. You can use the second version to
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directly set the length if you know it already or want to put nul's in
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the text. </P>
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<H4><A name=Fl_Input.static_value>int Fl_Input::static_value(const
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char*)
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<BR> int Fl_Input::static_value(const char*, int)</A></H4>
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Change the text and set the mark and the point to the end of it. The
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string is <I>not</I> copied. If the user edits the string it is copied
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to the internal buffer then. This can save a great deal of time and
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memory if your program is rapidly changing the values of text fields,
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but this will only work if the passed string remains unchanged until
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either the <TT>Fl_Input</TT> is destroyed or <TT>value()</TT> is called
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again.
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<H4><A name=Fl_Input.size>int Fl_Input::size() const</A></H4>
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Returns the number of characters in <TT>value()</TT>. This may be
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greater than <TT>strlen(value())</TT> if there are nul characters in
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it.
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<H4><A name=Fl_Input.index>char Fl_Input::index(int) const</A></H4>
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Same as <TT>value()[n]</TT>, but may be faster in plausible
|
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|
implementations. No bounds checking is done.
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<H4><A name=Fl_Input.when>Fl_When Fl_Widget::when() const
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<BR> void Fl_Widget::when(Fl_When)</A></H4>
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|
|
Controls when callbacks are done. The following values are useful,
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|
|
the default value is <TT>FL_WHEN_RELEASE</TT>:
|
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|
|
|
<UL>
|
|
|
|
|
|
<LI><TT>0</TT>: The callback is not done, but <TT>changed()</TT> is
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|
|
turned on. </LI>
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|
|
<LI><TT>FL_WHEN_CHANGED</TT>: The callback is done each time the text
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|
|
is changed by the user. </LI>
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|
|
<LI><TT>FL_WHEN_RELEASE</TT>: The callback will be done when this
|
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|
|
widget loses the focus, including when the window is unmapped. This
|
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|
|
is a useful value for text fields in a panel where doing the callback
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|
on every change is wasteful. However the callback will also happen if
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the mouse is moved out of the window, which means it should not do
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anything visible (like pop up an error message). You might do better
|
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|
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setting this to zero, and scanning all the items for <TT>changed()</TT>
|
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|
when the OK button on a panel is pressed. </LI>
|
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|
<LI><TT>FL_WHEN_ENTER_KEY</TT>: If the user types the Enter key, the
|
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|
|
entire text is selected, and the callback is done if the text has
|
|
|
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|
|
changed. Normally the Enter key will navigate to the next field (or
|
|
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|
|
|
insert a newline for a <TT>Fl_Mulitline_Input</TT>), this changes the
|
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|
|
behavior. </LI>
|
|
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|
|
<LI><TT>FL_WHEN_ENTER_KEY|FL_WHEN_NOT_CHANGED</TT>: The Enter key will
|
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|
|
do the callback even if the text has not changed. Useful for command
|
|
|
|
|
|
fields. </LI>
|
2001-08-02 01:24:49 +04:00
|
|
|
|
</UL>
|
2001-11-27 05:09:45 +03:00
|
|
|
|
<H4><A name=Fl_Input.textcolor>Fl_Color Fl_Input::textcolor() const
|
|
|
|
|
|
<BR> void Fl_Input::textcolor(Fl_Color)</A></H4>
|
|
|
|
|
|
Gets or sets the color of the text in the input field.
|
|
|
|
|
|
<H4><A name=Fl_Input.textfont>Fl_Font Fl_Input::textfont() const
|
|
|
|
|
|
<BR> void Fl_Input::textfont(Fl_Font)</A></H4>
|
|
|
|
|
|
Gets or sets the font of the text in the input field.
|
|
|
|
|
|
<H4><A name=Fl_Input.textsize>uchar Fl_Input::textsize() const
|
|
|
|
|
|
<BR> void Fl_Input::textsize(uchar)</A></H4>
|
|
|
|
|
|
Gets or sets the size of the text in the input field.
|
|
|
|
|
|
<H4><A name=Fl_Input.cursor_color>Fl_Color Fl_Input::cursor_color()
|
|
|
|
|
|
const
|
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|
|
|
<BR> void Fl_Input::cursor_color(Fl_Color)</A></H4>
|
|
|
|
|
|
Get or set the color of the cursor. This is black by default.
|
2001-08-02 01:24:49 +04:00
|
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|
2001-11-27 05:09:45 +03:00
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</BODY></HTML>
|
