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authorMichael R Sweet <michael.r.sweet@gmail.com>1999-01-13 19:28:54 +0000
committerMichael R Sweet <michael.r.sweet@gmail.com>1999-01-13 19:28:54 +0000
commitd7b88a3bcc7e76f38ee5799be7722fd5a10781ef (patch)
treed8984d45424c9b2cdb199c1918f38bfea4a8211d /documentation/enumerations.html
parent30fa233681467b82b165e7d42cd0bea778b93768 (diff)
Updated all links so they work between files.
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-<HTML>
-<BODY>
-<H1 ALIGN=RIGHT><A NAME="enumerations">C - FLTK Enumerations.H</A></H1>
-
-This appendix lists the enumerations provided in the
-<tt>&lt;FL/Enumerations.H></tt> header file, organized by section.
-
+<HTML><BODY>
+<H1 ALIGN=RIGHT><A NAME=enumerations>C - FLTK Enumerations.H</A></H1>
+ This appendix lists the enumerations provided in the <TT>
+&lt;FL/Enumerations.H&gt;</TT> header file, organized by section.
<H2>Version Numbers</H2>
-
-The FLTK version number is stored in a number of compile-time constants:
-
-<ul>
-
- <li><tt>FL_MAJOR_VERSION</tt> - The major release number, currently
- 1.
-
- <li><tt>FL_MINOR_VERSION</tt> - The minor release number, currently
- 0.
-
- <li><tt>FL_PATCH_VERSION</tt> - The patch release number, currently
- 0.
-
- <li><tt>FL_VERSION</tt> - A combined floating-point version
- number for the major and minor release numbers, currently 1.0.
-
-</ul>
-
+ The FLTK version number is stored in a number of compile-time
+constants:
+<UL>
+<LI><TT>FL_MAJOR_VERSION</TT> - The major release number, currently 1. </LI>
+<LI><TT>FL_MINOR_VERSION</TT> - The minor release number, currently 0. </LI>
+<LI><TT>FL_PATCH_VERSION</TT> - The patch release number, currently 0. </LI>
+<LI><TT>FL_VERSION</TT> - A combined floating-point version number for
+the major and minor release numbers, currently 1.0. </LI>
+</UL>
<H2>Events</H2>
-
-Events are identified by an <tt>Fl_Event</tt> enumeration value. The
-following events are currently defined:
-
-<ul>
-
- <li><tt>FL_NO_EVENT</tt> - No event occurred.
-
- <li><tt>FL_PUSH</tt> - A mouse button was pushed.
-
- <li><tt>FL_RELEASE</tt> - A mouse button was released.
-
- <li><tt>FL_ENTER</tt> - The mouse pointer entered a widget.
-
- <li><tt>FL_LEAVE</tt> - The mouse pointer left a widget.
-
- <li><tt>FL_DRAG</tt> - The mouse pointer was moved with a button
- pressed.
-
- <li><tt>FL_FOCUS</tt> - A widget should receive keyboard focus.
-
- <li><tt>FL_UNFOCUS</tt> - A widget loses keyboard focus.
-
- <li><tt>FL_KEYBOARD</tt> - A key was pressed.
-
- <li><tt>FL_CLOSE</tt> - A window was closed.
-
- <li><tt>FL_MOVE</tt> - The mouse pointer was moved with no buttons
- pressed.
-
- <li><tt>FL_SHORTCUT</tt> - The user pressed a shortcut key.
-
- <li><tt>FL_DEACTIVATE</tt> - The widget has been deactivated.
-
- <li><tt>FL_ACTIVATE</tt> - The widget has been activated.
-
- <li><tt>FL_HIDE</tt> - The widget has been hidden.
-
- <li><tt>FL_SHOW</tt> - The widget has been shown.
-
- <li><tt>FL_PASTE</tt> - The widget should paste the contents of the
- clipboard.
-
- <li><tt>FL_SELECTIONCLEAR</tt> - The widget should clear any selections
- made for the clipboard.
-
-</ul>
-
-<H2>Callback "When" Conditions</H2>
-
-The following constants determine when a callback is performed:
-
-<ul>
-
- <li><tt>FL_WHEN_NEVER</tt> - Never call the callback.
-
- <li><tt>FL_WHEN_CHANGED</tt> - Do the callback only when the
- widget value changes.
-
- <li><tt>FL_WHEN_NOT_CHANGED</tt> - Do the callback whenever the
- user interacts with the widget.
-
- <li><tt>FL_WHEN_RELEASE</tt> - Do the callback when the button or
- key is released and the value changes.
-
- <li><tt>FL_WHEN_ENTER_KEY</tt> - Do the callback when the user presses
- the ENTER key and the value changes.
-
- <li><tt>FL_WHEN_RELEASE_ALWAYS</tt> - Do the callback when the button
- or key is released, even if the value doesn't change.
-
- <li><tt>FL_WHEN_ENTER_KEY_ALWAYS</tt> - Do the callback when the user
- presses the ENTER key, even if the value doesn't change.
-
-</ul>
-
+ Events are identified by an <TT>Fl_Event</TT> enumeration value. The
+following events are currently defined:
+<UL>
+<LI><TT>FL_NO_EVENT</TT> - No event occurred. </LI>
+<LI><TT>FL_PUSH</TT> - A mouse button was pushed. </LI>
+<LI><TT>FL_RELEASE</TT> - A mouse button was released. </LI>
+<LI><TT>FL_ENTER</TT> - The mouse pointer entered a widget. </LI>
+<LI><TT>FL_LEAVE</TT> - The mouse pointer left a widget. </LI>
+<LI><TT>FL_DRAG</TT> - The mouse pointer was moved with a button
+ pressed. </LI>
+<LI><TT>FL_FOCUS</TT> - A widget should receive keyboard focus. </LI>
+<LI><TT>FL_UNFOCUS</TT> - A widget loses keyboard focus. </LI>
+<LI><TT>FL_KEYBOARD</TT> - A key was pressed. </LI>
+<LI><TT>FL_CLOSE</TT> - A window was closed. </LI>
+<LI><TT>FL_MOVE</TT> - The mouse pointer was moved with no buttons
+ pressed. </LI>
+<LI><TT>FL_SHORTCUT</TT> - The user pressed a shortcut key. </LI>
+<LI><TT>FL_DEACTIVATE</TT> - The widget has been deactivated. </LI>
+<LI><TT>FL_ACTIVATE</TT> - The widget has been activated. </LI>
+<LI><TT>FL_HIDE</TT> - The widget has been hidden. </LI>
+<LI><TT>FL_SHOW</TT> - The widget has been shown. </LI>
+<LI><TT>FL_PASTE</TT> - The widget should paste the contents of the
+ clipboard. </LI>
+<LI><TT>FL_SELECTIONCLEAR</TT> - The widget should clear any selections
+ made for the clipboard. </LI>
+</UL>
+<H2>Callback &quot;When&quot; Conditions</H2>
+ The following constants determine when a callback is performed:
+<UL>
+<LI><TT>FL_WHEN_NEVER</TT> - Never call the callback. </LI>
+<LI><TT>FL_WHEN_CHANGED</TT> - Do the callback only when the widget
+value changes. </LI>
+<LI><TT>FL_WHEN_NOT_CHANGED</TT> - Do the callback whenever the user
+interacts with the widget. </LI>
+<LI><TT>FL_WHEN_RELEASE</TT> - Do the callback when the button or key
+is released and the value changes. </LI>
+<LI><TT>FL_WHEN_ENTER_KEY</TT> - Do the callback when the user presses
+ the ENTER key and the value changes. </LI>
+<LI><TT>FL_WHEN_RELEASE_ALWAYS</TT> - Do the callback when the button
+ or key is released, even if the value doesn't change. </LI>
+<LI><TT>FL_WHEN_ENTER_KEY_ALWAYS</TT> - Do the callback when the user
+ presses the ENTER key, even if the value doesn't change. </LI>
+</UL>
<H2>Fl::event_key() Values</H2>
-
-The following constants define the non-ASCII keys on the keyboard for
-<tt>FL_KEYBOARD</tt> and <tt>FL_SHORTCUT</tt> events:
-
-<ul>
-
- <li><tt>FL_Button</tt> - A mouse button; use <tt>Fl_Button +
- n</tt> for mouse button <tt>n</tt>.
-
- <li><tt>FL_BackSpace</tt> - The backspace key.
-
- <li><tt>FL_Tab</tt> - The tab key.
-
- <li><tt>FL_Enter</tt> - The enter key.
-
- <li><tt>FL_Pause</tt> - The pause key.
-
- <li><tt>FL_Scroll_Lock</tt> - The scroll lock key.
-
- <li><tt>FL_Escape</tt> - The escape key.
-
- <li><tt>FL_Home</tt> - The home key.
-
- <li><tt>FL_Left</tt> - The left arrow key.
-
- <li><tt>FL_Up</tt> - The up arrow key.
-
- <li><tt>FL_Right</tt> - The right arrow key.
-
- <li><tt>FL_Down</tt> - The down arrow key.
-
- <li><tt>FL_Page_Up</tt> - The page-up key.
-
- <li><tt>FL_Page_Down</tt> - The page-down key.
-
- <li><tt>FL_End</tt> - The end key.
-
- <li><tt>FL_Print</tt> - The print (or print-screen) key.
-
- <li><tt>FL_Insert</tt> - The insert key.
-
- <li><tt>FL_Menu</tt> - The menu key.
-
- <li><tt>FL_Num_Lock</tt> - The num lock key.
-
- <li><tt>FL_KP</tt> - One of the keypad numbers; use <tt>FL_KP +
- n</tt> for number <tt>n</tt>.
-
- <li><tt>FL_KP_Enter</tt> - The enter key on the keypad.
-
- <li><tt>FL_F</tt> - One of the function keys; use <tt>FL_F +
- n</tt> for function key <tt>n</tt>.
-
- <li><tt>FL_Shift_L</tt> - The lefthand shift key.
-
- <li><tt>FL_Shift_R</tt> - The righthand shift key.
-
- <li><tt>FL_Control_L</tt> - The lefthand control key.
-
- <li><tt>FL_Control_R</tt> - The righthand control key.
-
- <li><tt>FL_Caps_Lock</tt> - The caps lock key.
-
- <li><tt>FL_Meta_L</tt> - The left meta/Windows key.
-
- <li><tt>FL_Meta_R</tt> - The right meta/Windows key.
-
- <li><tt>FL_Alt_L</tt> - The left alt key.
-
- <li><tt>FL_Alt_R</tt> - The right alt key.
-
- <li><tt>FL_Delete</tt> - The delete key.
-
-</ul>
-
+ The following constants define the non-ASCII keys on the keyboard for <TT>
+FL_KEYBOARD</TT> and <TT>FL_SHORTCUT</TT> events:
+<UL>
+<LI><TT>FL_Button</TT> - A mouse button; use <TT>Fl_Button + n</TT>
+ for mouse button <TT>n</TT>. </LI>
+<LI><TT>FL_BackSpace</TT> - The backspace key. </LI>
+<LI><TT>FL_Tab</TT> - The tab key. </LI>
+<LI><TT>FL_Enter</TT> - The enter key. </LI>
+<LI><TT>FL_Pause</TT> - The pause key. </LI>
+<LI><TT>FL_Scroll_Lock</TT> - The scroll lock key. </LI>
+<LI><TT>FL_Escape</TT> - The escape key. </LI>
+<LI><TT>FL_Home</TT> - The home key. </LI>
+<LI><TT>FL_Left</TT> - The left arrow key. </LI>
+<LI><TT>FL_Up</TT> - The up arrow key. </LI>
+<LI><TT>FL_Right</TT> - The right arrow key. </LI>
+<LI><TT>FL_Down</TT> - The down arrow key. </LI>
+<LI><TT>FL_Page_Up</TT> - The page-up key. </LI>
+<LI><TT>FL_Page_Down</TT> - The page-down key. </LI>
+<LI><TT>FL_End</TT> - The end key. </LI>
+<LI><TT>FL_Print</TT> - The print (or print-screen) key. </LI>
+<LI><TT>FL_Insert</TT> - The insert key. </LI>
+<LI><TT>FL_Menu</TT> - The menu key. </LI>
+<LI><TT>FL_Num_Lock</TT> - The num lock key. </LI>
+<LI><TT>FL_KP</TT> - One of the keypad numbers; use <TT>FL_KP + n</TT>
+ for number <TT>n</TT>. </LI>
+<LI><TT>FL_KP_Enter</TT> - The enter key on the keypad. </LI>
+<LI><TT>FL_F</TT> - One of the function keys; use <TT>FL_F + n</TT>
+ for function key <TT>n</TT>. </LI>
+<LI><TT>FL_Shift_L</TT> - The lefthand shift key. </LI>
+<LI><TT>FL_Shift_R</TT> - The righthand shift key. </LI>
+<LI><TT>FL_Control_L</TT> - The lefthand control key. </LI>
+<LI><TT>FL_Control_R</TT> - The righthand control key. </LI>
+<LI><TT>FL_Caps_Lock</TT> - The caps lock key. </LI>
+<LI><TT>FL_Meta_L</TT> - The left meta/Windows key. </LI>
+<LI><TT>FL_Meta_R</TT> - The right meta/Windows key. </LI>
+<LI><TT>FL_Alt_L</TT> - The left alt key. </LI>
+<LI><TT>FL_Alt_R</TT> - The right alt key. </LI>
+<LI><TT>FL_Delete</TT> - The delete key. </LI>
+</UL>
<H2>Fl::event_state() Values</H2>
-
-The following constants define bits in the <tt>Fl::event_state()</tt>
-value:
-
-<ul>
-
- <li><tt>FL_SHIFT</tt> - One of the shift keys is down.
-
- <li><tt>FL_CAPS_LOCK</tt> - The caps lock is on.
-
- <li><tt>FL_CTRL</tt> - One of the ctrl keys is down.
-
- <li><tt>FL_ALT</tt> - One of the alt keys is down.
-
- <li><tt>FL_NUM_LOCK</tt> - The num lock is on.
-
- <li><tt>FL_META</tt> - One of the meta/Windows keys is down.
-
- <li><tt>FL_SCROLL_LOCK</tt> - The scroll lock is on.
-
- <li><tt>FL_BUTTON1</tt> - Mouse button 1 is pushed.
-
- <li><tt>FL_BUTTON2</tt> - Mouse button 2 is pushed.
-
- <li><tt>FL_BUTTON3</tt> - Mouse button 3 is pushed.
-
-</ul>
-
+ The following constants define bits in the <TT>Fl::event_state()</TT>
+ value:
+<UL>
+<LI><TT>FL_SHIFT</TT> - One of the shift keys is down. </LI>
+<LI><TT>FL_CAPS_LOCK</TT> - The caps lock is on. </LI>
+<LI><TT>FL_CTRL</TT> - One of the ctrl keys is down. </LI>
+<LI><TT>FL_ALT</TT> - One of the alt keys is down. </LI>
+<LI><TT>FL_NUM_LOCK</TT> - The num lock is on. </LI>
+<LI><TT>FL_META</TT> - One of the meta/Windows keys is down. </LI>
+<LI><TT>FL_SCROLL_LOCK</TT> - The scroll lock is on. </LI>
+<LI><TT>FL_BUTTON1</TT> - Mouse button 1 is pushed. </LI>
+<LI><TT>FL_BUTTON2</TT> - Mouse button 2 is pushed. </LI>
+<LI><TT>FL_BUTTON3</TT> - Mouse button 3 is pushed. </LI>
+</UL>
<H2>Alignment Values</H2>
-
-The following constants define bits that can be used with <a
-href="#Fl_Widget.align"><tt>Fl_Widget::align()</tt></a> to control the
-positioning of the label:
-
-<ul>
-
- <li><tt>FL_ALIGN_CENTER</tt> - The label is centered.
-
- <li><tt>FL_ALIGN_TOP</tt> - The label is top-aligned.
-
- <li><tt>FL_ALIGN_BOTTOM</tt> - The label is bottom-aligned.
-
- <li><tt>FL_ALIGN_LEFT</tt> - The label is left-aligned.
-
- <li><tt>FL_ALIGN_RIGHT</tt> - The label is right-aligned.
-
- <li><tt>FL_ALIGN_INSIDE</tt> - The label is put inside the widget.
-
- <li><tt>FL_ALIGN_CLIP</tt> - The label is clipped to the widget.
-
- <li><tt>FL_ALIGN_WRAP</tt> - The label text is wrapped as needed.
-
-</ul>
-
+ The following constants define bits that can be used with <A href=Fl_Widget.html#Fl_Widget.align>
+<TT>Fl_Widget::align()</TT></A> to control the positioning of the
+label:
+<UL>
+<LI><TT>FL_ALIGN_CENTER</TT> - The label is centered. </LI>
+<LI><TT>FL_ALIGN_TOP</TT> - The label is top-aligned. </LI>
+<LI><TT>FL_ALIGN_BOTTOM</TT> - The label is bottom-aligned. </LI>
+<LI><TT>FL_ALIGN_LEFT</TT> - The label is left-aligned. </LI>
+<LI><TT>FL_ALIGN_RIGHT</TT> - The label is right-aligned. </LI>
+<LI><TT>FL_ALIGN_INSIDE</TT> - The label is put inside the widget. </LI>
+<LI><TT>FL_ALIGN_CLIP</TT> - The label is clipped to the widget. </LI>
+<LI><TT>FL_ALIGN_WRAP</TT> - The label text is wrapped as needed. </LI>
+</UL>
<H2>Fonts</H2>
-
-The following constants define the standard FLTK fonts:
-
-</ul>
-
- <li><tt>FL_HELVETICA</tt> - Helvetica (or Arial) normal.
-
- <li><tt>FL_HELVETICA_BOLD</tt> - Helvetica (or Arial) bold.
-
- <li><tt>FL_HELVETICA_ITALIC</tt> - Helvetica (or Arial) oblique.
-
- <li><tt>FL_HELVETICA_BOLD_ITALIC</tt> - Helvetica (or Arial) bold-oblique.
-
- <li><tt>FL_COURIER</tt> - Courier normal.
-
- <li><tt>FL_COURIER_BOLD</tt> - Courier bold.
-
- <li><tt>FL_COURIER_ITALIC</tt> - Courier italic.
-
- <li><tt>FL_COURIER_BOLD_ITALIC</tt> - Courier bold-italic.
-
- <li><tt>FL_TIMES</tt> - Times roman.
-
- <li><tt>FL_TIMES_BOLD</tt> - Times bold.
-
- <li><tt>FL_TIMES_ITALIC</tt> - Times italic.
-
- <li><tt>FL_TIMES_BOLD_ITALIC</tt> - Times bold-italic.
-
- <li><tt>FL_SYMBOL</tt> - Standard symbol font.
-
- <li><tt>FL_SCREEN</tt> - Default monospaced screen font.
-
- <li><tt>FL_SCREEN_BOLD</tt> - Default monospaced bold screen font.
-
- <li><tt>FL_ZAPF_DINGBATS</tt> - Zapf-dingbats font.
-
-</ul>
-
+ The following constants define the standard FLTK fonts:
+<LI><TT>FL_HELVETICA</TT> - Helvetica (or Arial) normal. </LI>
+<LI><TT>FL_HELVETICA_BOLD</TT> - Helvetica (or Arial) bold. </LI>
+<LI><TT>FL_HELVETICA_ITALIC</TT> - Helvetica (or Arial) oblique. </LI>
+<LI><TT>FL_HELVETICA_BOLD_ITALIC</TT> - Helvetica (or Arial)
+bold-oblique. </LI>
+<LI><TT>FL_COURIER</TT> - Courier normal. </LI>
+<LI><TT>FL_COURIER_BOLD</TT> - Courier bold. </LI>
+<LI><TT>FL_COURIER_ITALIC</TT> - Courier italic. </LI>
+<LI><TT>FL_COURIER_BOLD_ITALIC</TT> - Courier bold-italic. </LI>
+<LI><TT>FL_TIMES</TT> - Times roman. </LI>
+<LI><TT>FL_TIMES_BOLD</TT> - Times bold. </LI>
+<LI><TT>FL_TIMES_ITALIC</TT> - Times italic. </LI>
+<LI><TT>FL_TIMES_BOLD_ITALIC</TT> - Times bold-italic. </LI>
+<LI><TT>FL_SYMBOL</TT> - Standard symbol font. </LI>
+<LI><TT>FL_SCREEN</TT> - Default monospaced screen font. </LI>
+<LI><TT>FL_SCREEN_BOLD</TT> - Default monospaced bold screen font. </LI>
+<LI><TT>FL_ZAPF_DINGBATS</TT> - Zapf-dingbats font.
<H2>Colors</H2>
-
-The following color constants can be used to access the colors in the FLTK
-standard color palette:
-
-<ul>
-
- <li><tt>FL_BLACK</tt>
-
- <li><tt>FL_RED</tt>
-
- <li><tt>FL_GREEN</tt>
-
- <li><tt>FL_YELLOW</tt>
-
- <li><tt>FL_BLUE</tt>
-
- <li><tt>FL_MAGENTA</tt>
-
- <li><tt>FL_CYAN</tt>
-
- <li><tt>FL_WHITE</tt>
-
- <li><tt>FL_GRAY0</tt>
-
- <li><tt>FL_DARK3</tt>
-
- <li><tt>FL_DARK2</tt>
-
- <li><tt>FL_DARK1</tt>
-
- <li><tt>FL_GRAY</tt>
-
- <li><tt>FL_LIGHT1</tt>
-
- <li><tt>FL_LIGHT2</tt>
-
- <li><tt>FL_LIGHT3</tt>
-
-</ul>
-
+ The following color constants can be used to access the colors in the
+FLTK standard color palette:
+<UL>
+<LI><TT>FL_BLACK</TT></LI>
+<LI><TT>FL_RED</TT></LI>
+<LI><TT>FL_GREEN</TT></LI>
+<LI><TT>FL_YELLOW</TT></LI>
+<LI><TT>FL_BLUE</TT></LI>
+<LI><TT>FL_MAGENTA</TT></LI>
+<LI><TT>FL_CYAN</TT></LI>
+<LI><TT>FL_WHITE</TT></LI>
+<LI><TT>FL_GRAY0</TT></LI>
+<LI><TT>FL_DARK3</TT></LI>
+<LI><TT>FL_DARK2</TT></LI>
+<LI><TT>FL_DARK1</TT></LI>
+<LI><TT>FL_GRAY</TT></LI>
+<LI><TT>FL_LIGHT1</TT></LI>
+<LI><TT>FL_LIGHT2</TT></LI>
+<LI><TT>FL_LIGHT3</TT></LI>
+</UL>
<H2>Cursors</H2>
-
-The following constants define the mouse cursors that are available in
-FLTK:
-
-<ul>
- <li><tt>FL_CURSOR_DEFAULT</tt> - the default cursor, usually an arrow
- <li><tt>FL_CURSOR_ARROW</tt> - an arrow pointer
- <li><tt>FL_CURSOR_CROSS</tt> - crosshair
- <li><tt>FL_CURSOR_WAIT</tt> - watch or hourglass
- <li><tt>FL_CURSOR_INSERT</tt> - I-beam
- <li><tt>FL_CURSOR_HAND</tt> - hand (uparrow on MSWindows)
- <li><tt>FL_CURSOR_HELP</tt> - question mark
- <li><tt>FL_CURSOR_MOVE</tt> - 4-pointed arrow
- <li><tt>FL_CURSOR_NS</tt> - up/down arrow
- <li><tt>FL_CURSOR_WE</tt> - left/right arrow
- <li><tt>FL_CURSOR_NWSE</tt> - diagonal arrow
- <li><tt>FL_CURSOR_NESW</tt> - diagonal arrow
- <li><tt>FL_CURSOR_NONE</tt> - invisible
-</ul>
-
-<H2>FD "When" Conditions</H2>
-
-<ul>
-
- <li><tt>FL_READ</tt> - Call the callback when there is data to be
- read.
-
- <li><tt>FL_WRITE</tt> - Call the callback when data can be written
- without blocking.
-
- <li><tt>FL_EXCEPT</tt> - Call the callback if an exception occurs on
- the file.
-
-</ul>
-
+ The following constants define the mouse cursors that are available in
+FLTK:
+<UL>
+<LI><TT>FL_CURSOR_DEFAULT</TT> - the default cursor, usually an arrow </LI>
+<LI><TT>FL_CURSOR_ARROW</TT> - an arrow pointer </LI>
+<LI><TT>FL_CURSOR_CROSS</TT> - crosshair </LI>
+<LI><TT>FL_CURSOR_WAIT</TT> - watch or hourglass </LI>
+<LI><TT>FL_CURSOR_INSERT</TT> - I-beam </LI>
+<LI><TT>FL_CURSOR_HAND</TT> - hand (uparrow on MSWindows) </LI>
+<LI><TT>FL_CURSOR_HELP</TT> - question mark </LI>
+<LI><TT>FL_CURSOR_MOVE</TT> - 4-pointed arrow </LI>
+<LI><TT>FL_CURSOR_NS</TT> - up/down arrow </LI>
+<LI><TT>FL_CURSOR_WE</TT> - left/right arrow </LI>
+<LI><TT>FL_CURSOR_NWSE</TT> - diagonal arrow </LI>
+<LI><TT>FL_CURSOR_NESW</TT> - diagonal arrow </LI>
+<LI><TT>FL_CURSOR_NONE</TT> - invisible </LI>
+</UL>
+<H2>FD &quot;When&quot; Conditions</H2>
+<UL>
+<LI><TT>FL_READ</TT> - Call the callback when there is data to be
+ read. </LI>
+<LI><TT>FL_WRITE</TT> - Call the callback when data can be written
+ without blocking. </LI>
+<LI><TT>FL_EXCEPT</TT> - Call the callback if an exception occurs on
+ the file. </LI>
+</UL>
<H2>Damage Masks</H2>
-
-The following damage mask bits are used by the standard FLTK widgets:
-
-<ul>
-
- <li><tt>FL_DAMAGE_CHILD</tt> - A child needs to be redrawn.
-
- <li><tt>FL_DAMAGE_EXPOSE</tt> - The window was exposed.
-
- <li><tt>FL_DAMAGE_SCROLL</tt> - The <tt>Fl_Scroll</tt> widget was
- scrolled.
-
- <li><tt>FL_DAMAGE_OVERLAY</tt> - The overlay planes need to be redrawn.
-
- <li><tt>FL_DAMAGE_ALL</tt> - Everything needs to be redrawn.
-
-</ul>
-
-</BODY>
-</HTML>
+ The following damage mask bits are used by the standard FLTK widgets:
+<UL>
+<LI><TT>FL_DAMAGE_CHILD</TT> - A child needs to be redrawn. </LI>
+<LI><TT>FL_DAMAGE_EXPOSE</TT> - The window was exposed. </LI>
+<LI><TT>FL_DAMAGE_SCROLL</TT> - The <TT>Fl_Scroll</TT> widget was
+ scrolled. </LI>
+<LI><TT>FL_DAMAGE_OVERLAY</TT> - The overlay planes need to be redrawn. </LI>
+<LI><TT>FL_DAMAGE_ALL</TT> - Everything needs to be redrawn. </LI>
+</UL>
+</LI>
+</BODY></HTML> \ No newline at end of file