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removed dead html anchors from, and improved layout of, fluid.dox 

added a lot of \par commands to get indented paragraphs for the
reference section, basically because the paragraph titles stand
out more than the \subsection titles. Do we need to rethink this?



git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@6750 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
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engelsman 2009-04-10 19:28:55 +00:00
parent 20775caf08
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documentation/src/fluid.dox
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@ -19,7 +19,6 @@ Subchapters:
\li \ref fluid_i18n
\li \ref fluid_limitations
<A NAME="what_is_fluid"> </A> <!-- For old HTML links only ! -->
\section fluid_what_is_fluid What is FLUID?
The Fast Light User Interface Designer, or FLUID, is a
@ -69,7 +68,6 @@ Widgets may either call a named callback function that you write in
another source file, or you can supply a small piece of C++ source and
FLUID will write a private callback function into the <tt>.cxx</tt> file.
<A NAME="fluid_under_linux"> </A> <!-- For old HTML links only ! -->
\section fluid_fluid_under_unix Running FLUID Under UNIX
To run FLUID under UNIX, type:
@ -109,14 +107,12 @@ background with <tt>'&'</tt> then you will be able to abort FLUID by
typing <tt>CTRL-C</tt> on the terminal. It will exit
immediately, losing any changes.
<A NAME="fluid_under_windows"> </A> <!-- For old HTML links only ! -->
\section fluid_fluid_under_windows Running FLUID Under Microsoft Windows
To run FLUID under WIN32, double-click on the \e FLUID.exe
file. You can also run FLUID from the Command Prompt window.
FLUID always runs in the background under WIN32.
<A NAME="compiling_fl_files"> </A> <!-- For old HTML links only ! -->
\section fluid_compiling_fl_files Compiling .fl files
FLUID can also be called as a command-line
@ -150,7 +146,6 @@ files to be compiled:
fluid -c $<
\endcode
<A NAME="tutorial"> </A> <!-- For old HTML links only ! -->
\section fluid_tutorial A Short Tutorial
FLUID is an amazingly powerful little program. However, this
@ -188,7 +183,6 @@ You can safely skip this section as long as you realize the CubeView
is a sublass of Fl_Gl_Window and will respond to calls from
CubeViewUI, generated by FLUID.
<a name="def"> </A> <!-- For old HTML links only ! -->
\par The CubeView Class Definition
Here is the CubeView class definition, as given by its header file
@ -251,7 +245,6 @@ class CubeView : public Fl_Gl_Window {
};
\endcode
<a name="imp"> </A> <!-- For old HTML links only ! -->
\par The CubeView Class Implementation
Here is the CubeView implementation. It is very similar to the
@ -381,7 +374,6 @@ void CubeView::draw() {
We will completely construct a window to display and control the
CubeView defined in the previous section using FLUID.
<a name="defui"> </A> <!-- For old HTML links only ! -->
\par Defining the CubeViewUI Class
Once you have started FLUID, the first step in defining a class is to
@ -394,7 +386,6 @@ browser window.
\image html fluid1.gif "Figure 9-3: FLUID file for CubeView"
\image latex fluid1.eps "FLUID file for CubeView" width=10cm
<a name="addcon"> </A> <!-- For old HTML links only ! -->
\par Adding the Class Constructor
Click on the CubeViewUI class in the FLUID window and add a new method
@ -426,7 +417,6 @@ When you are finished you should have something like this:
We will talk about the \p show() method that is highlighted
shortly.
<a name="addcube"> </A> <!-- For old HTML links only ! -->
\par Adding the CubeView Widget
What we have is nice, but does little to show our cube. We have already
@ -452,7 +442,6 @@ now available to CubeViewUI.
\image html fluid3-cxx.gif "Figure 9-5: CubeView methods"
\image latex fluid3-cxx.eps "CubeView methods" width=10cm
<a name="defcall"> </A> <!-- For old HTML links only ! -->
\par Defining the Callbacks
Each of the widgets we defined before adding CubeView can have
@ -475,7 +464,6 @@ There is no reason no wait until after you have added CubeView to
enter these callbacks. FLUID assumes you are smart enough not to refer
to members or functions that don't exist.
<a name="addmeth"> </A> <!-- For old HTML links only ! -->
\par Adding a Class Method
You can add class methods within FLUID that have nothing to do with the
@ -494,7 +482,6 @@ type of \p void.
Once the new method has been added, highlight its name and select
<b>New->Code->Code.</b> Enter the method's code in the code window.
<a name="addconst"> </A> <!-- For old HTML links only ! -->
\subsection fluid_addconst Adding Constructor Initialization Code
If you need to add code to initialize class, for example setting
@ -502,21 +489,20 @@ initial values of the horizontal and vertical angles in the
CubeView, you can simply highlight the Constructor and select
<b>New->Code->Code</b>. Add any required code.
<a name="gencode"> </A> <!-- For old HTML links only ! -->
\subsection fluid_gencode Generating the Code
Now that we have completely defined the CubeViewUI, we have to generate
the code. There is one last trick to ensure this all works. Open the
preferences dialog from <b>Edit->Preferences</b>.
At the bottom of the preferences dialog box is the key: "Include
Header from Code". Select that option and set your desired file
At the bottom of the preferences dialog box is the key:
<b>"Include Header from Code"</b>.
Select that option and set your desired file
extensions and you are in business. You can include the CubeViewUI.h
(or whatever extension you prefer) as you would any other C++ class.
<!-- NEW PAGE -->
<A NAME="references"> </A> <!-- For old HTML links only ! -->
\section fluid_references FLUID Reference
The following sections describe each of the windows in FLUID.
@ -569,10 +555,12 @@ window. The menu items are:
\par File/Open... (Ctrl+o)
\par
Discards the current editing session and reads in a different
<tt>.fl</tt> file. You are asked for confirmation if you have
changed the current file.
\par
FLUID can also read <tt>.fd</tt> files produced by the Forms
and XForms "fdesign" programs. It is best to
File/Merge them instead of opening them. FLUID does not
@ -586,6 +574,7 @@ read!
\par File/Insert... (Ctrl+i)
\par
Inserts the contents of another <tt>.fl</tt> file, without
changing the name of the current <tt>.fl</tt> file. All the
functions (even if they have the same names as the current ones)
@ -594,28 +583,34 @@ where you want.
\par File/Save (Ctrl+s)
\par
Writes the current data to the <tt>.fl</tt> file. If the
file is unnamed then FLUID will ask for a filename.
\par File/Save As... (Ctrl+Shift+S)
\par
Asks for a new filename and saves the file.
\par File/Write Code (Ctrl+Shift+C)
\par
"Compiles" the data into a <tt>.cxx</tt> and <tt>.h</tt>
file. These are exactly the same as the files you get when you run
FLUID with the \c -c switch.
\par
The output file names are the same as the <tt>.fl</tt> file, with
the leading directory and trailing ".fl" stripped, and
".h" or ".cxx" appended.
\par File/Write Strings (Ctrl+Shift+W)
\par
Writes a message file for all of the text labels defined in
the current file.
\par
The output file name is the same as the <tt>.fl</tt> file,
with the leading directory and trailing ".fl"
stripped, and ".txt", ".po", or ".msg" appended depending on the
@ -623,46 +618,57 @@ stripped, and ".txt", ".po", or ".msg" appended depending on the
\par File/Quit (Ctrl+q)
\par
Exits FLUID. You are asked for confirmation if you have
changed the current file.
\par Edit/Undo (Ctrl+z)
\par
This isn't implemented yet. You should do save often so you can
recover from any mistakes you make.
\par Edit/Cut (Ctrl+x)
\par
Deletes the selected widgets and all of their children.
These are saved to a "clipboard" file and can be
pasted back into any FLUID window.
\par Edit/Copy (Ctrl+c)
\par
Copies the selected widgets and all of their children to the
"clipboard" file.
\par Edit/Paste (Ctrl+c)
\par
Pastes the widgets from the clipboard file.
\par
If the widget is a window, it is added to whatever function
is selected, or contained in the current selection.
\par
If the widget is a normal widget, it is added to whatever
window or group is selected. If none is, it is added to the
window or group that is the parent of the current selection.
\par
To avoid confusion, it is best to select exactly one widget
before doing a paste.
\par
Cut/paste is the only way to change the parent of a
widget.
\par Edit/Select All (Ctrl+a)
\par
Selects all widgets in the same group as the current selection.
\par
If they are all selected already then this selects all
widgets in that group's parent. Repeatedly typing Ctrl+a will
select larger and larger groups of widgets until everything is
@ -670,12 +676,14 @@ selected.
\par Edit/Open... (F1 or double click)
\par
Displays the current widget in the attributes panel. If the
widget is a window and it is not visible then the window is
shown instead.
\par Edit/Sort
\par
Sorts the selected widgets into left to right, top to bottom
order. You need to do this to make navigation keys in FLTK work
correctly. You may then fine-tune the sorting with
@ -684,6 +692,7 @@ the positions of windows or functions.
\par Edit/Earlier (F2)
\par
Moves all of the selected widgets one earlier in order among
the children of their parent (if possible). This will affect
navigation order, and if the widgets overlap it will affect how
@ -693,21 +702,25 @@ windows within functions.
\par Edit/Later (F3)
\par
Moves all of the selected widgets one later in order among
the children of their parent (if possible).
\par Edit/Group (F7)
\par
Creates a new Fl_Group and make all the currently
selected widgets children of it.
\par Edit/Ungroup (F8)
\par
Deletes the parent group if all the children of a group are
selected.
\par Edit/Overlays on/off (Ctrl+Shift+O)
\par
Toggles the display of the red overlays off, without changing
the selection. This makes it easier to see box borders and how
the layout looks. The overlays will be forced back on if you
@ -715,12 +728,14 @@ change the selection.
\par Edit/Project Settings... (Ctrl+p)
\par
Displays the project settings panel.
The output filenames control the extensions or names of the
files the are generated by FLUID. If you check the "Include .h
from .cxx" button the code file will include the header file
automatically.
\par
The \ref fluid_i18n "internationalization" options are described
later in this chapter.
@ -729,22 +744,26 @@ later in this chapter.
\par Edit/GUI Settings... (Shift+Ctrl+p)
\par
Displays the GUI settings panel. This panel is used
to control the user interface settings.
\par New/Code/Function
\par
Creates a new C function. You will be asked for a name for
the function. This name should be a legal C++ function
template, without the return type. You can pass arguments which
can be referred to by code you type into the individual widgets.
\par
If the function contains any unnamed windows, it will be
declared as returning a Fl_Window pointer. The unnamed window
will be returned from it (more than one unnamed window is
useless). If the function contains only named windows, it will
be declared as returning nothing (\c void ).
\par
It is possible to make the <tt>.cxx</tt> output be a
self-contained program that can be compiled and executed. This
is done by deleting the function name so
@ -753,22 +772,26 @@ is done by deleting the function name so
\p Fl::run(). This can also be used to test resize
behavior or other parts of the user interface.
\par
You can change the function name by double-clicking on the
function.
\par New/Window
\par
Creates a new Fl_Window widget. The window is added
to the currently selected function, or to the function
containing the currently selected item. The window will appear,
sized to 100x100. You can resize it to whatever size you
require.
\par
The widget panel will also appear and is described later in
this chapter.
\par New/...
\par
All other items on the New menu are subclasses of
Fl_Widget. Creating them will add them to the
currently selected group or window, or the group or window
@ -776,28 +799,34 @@ containing the currently selected widget. The initial
dimensions and position are chosen by copying the current
widget, if possible.
\par
When you create the widget you will get the widget's control
panel, which is described later in this chapter.
\par Layout/Align/...
\par
Align all selected widgets to the first widget in the selection.
\par Layout/Space Evenly/...
\par
Space all selected widgets evenly inside the selected space.
Widgets will be sorted from first to last.
\par Layout/Make Same Size/...
\par
Make all slected widgets the same size as the first selected widget.
\par Layout/Center in Group/...
\par
Center all selected widgets relative to their parent widget
\par Layout/Grid... (Ctrl+g)
\par
Displays the grid settings panel.
This panel
controls the grid that all widgets snap to when you move and
@ -806,23 +835,28 @@ be dragged from its original position to actually change.
\par Shell/Execute Command... (Alt+x)
\par
Displays the shell command panel. The shell command
is commonly used to run a 'make' script to compile the FLTK output.
\par Shell/Execute Again (Alt+g)
\par
Run the shell command again.
\par Help/About FLUID
\par
Pops up a panel showing the version of FLUID.
\par Help/On FLUID
\par
Shows this chapter of the manual.
\par Help/Manual
\par
Shows the contents page of the manual
\subsection fluid_widget_panel The Widget Panel
@ -862,37 +896,44 @@ undone, however.
\par Label (text field)
\par
String to print next to or inside the button. You can put
newlines into the string to make multiple lines. The easiest way
is by typing Ctrl+j.
<A href="common.html#symbols">Symbols</A>
\par
\ref common_labels "Symbols"
can be added to the label using the at sign ("@").
\par Label (pull down menu)
\par
How to draw the label. Normal, shadowed, engraved, and
embossed change the appearance of the text.
\par Image
\par
The active image for the widget. Click on the
\b Browse... button to pick an image file using the file
chooser.
\par Inactive
\par
The inactive image for the widget. Click on the
\b Browse... button to pick an image file using the file
chooser.
\par Alignment (buttons)
\par
Where to draw the label. The arrows put it on that side of
the widget, you can combine the to put it in the corner. The
"box" button puts the label inside the widget, rather
than outside.
\par
The \b clip button clips the label to the widget box, the
\b wrap button wraps any text in the label, and the
<b>text image</b> button puts the text over the image instead of under
@ -900,29 +941,35 @@ the image.
\par Position (text fields)
\par
The position fields show the current position and size of the
widget box. Enter new values to move and/or resize a widget.
\par Values (text fields)
\par
The values and limits of the current widget. Depending on the
type of widget, some or all of these fields may be inactive.
\par Shortcut
\par
The shortcut key to activate the widget. Click on the
shortcut button and press any key sequence to set the shortcut.
\par Attributes (buttons)
\par
The \b Visible button controls whether the widget is
visible (on) or hidden (off) initially. Don't change this for
windows or for the immediate children of a Tabs group.
\par
The \b Active button controls whether the widget is
activated (on) or deactivated (off) initially. Most widgets
appear greyed out when deactivated.
\par
The \b Resizable button controls whether the window is
resizeable. In addition all the size changes of a window or
group will go "into" the resizable child. If you have
@ -933,6 +980,7 @@ using hierarchies of groups. Unfortunately the only way to test
it is to compile the program. Resizing the FLUID window is
\e not the same as what will happen in the user program.
\par
The \b Hotspot button causes the parent window to be
positioned with that widget centered on the mouse. This
position is determined <i>when the FLUID function is called</i>,
@ -941,12 +989,14 @@ you want the window to hide and then reappear at a new position,
you should have your program set the hotspot itself just before
\p show().
\par
The \b Border button turns the window manager border on
or off. On most window managers you will have to close the
window and reopen it to see the effect.
\par X Class (text field)
\par
The string typed into here is passed to the X window manager
as the class. This can change the icon or window decorations.
On most (all?) window managers you will have to close the window
@ -959,6 +1009,7 @@ and reopen it to see the effect.
\par Label Font (pulldown menu)
\par
Font to draw the label in. Ignored by symbols, bitmaps, and
pixmaps. Your program can change the actual font used by these
"slots" in case you want some font other than the 16
@ -966,25 +1017,30 @@ provided.
\par Label Size (pulldown menu)
\par
Pixel size (height) for the font to draw the label in.
Ignored by symbols, bitmaps, and pixmaps. To see the result
without dismissing the panel, type the new number and then Tab.
\par Label Color (button)
\par
Color to draw the label. Ignored by pixmaps (bitmaps,
however, do use this color as the foreground color).
\par Box (pulldown menu)
\par
The boxtype to draw as a background for the widget.
\par
Many widgets will work, and draw faster, with a
"frame" instead of a "box". A frame does
not draw the colored interior, leaving whatever was already
there visible. Be careful, as FLUID may draw this ok but the
real program may leave unwanted stuff inside the widget.
\par
If a window is filled with child widgets, you can speed up
redrawing by changing the window's box type to
"NO_BOX". FLUID will display a checkerboard for any
@ -994,15 +1050,18 @@ random garbage will be displayed.
\par Down Box (pulldown menu)
\par
The boxtype to draw when a button is pressed or for some
parts of other widgets like scrollbars and valuators.
\par Color (button)
\par
The color to draw the box with.
\par Select Color (button)
\par
Some widgets will use this color for certain parts. FLUID
does not always show the result of this: this is the color
buttons draw in when pushed down, and the color of input fields
@ -1010,6 +1069,7 @@ when they have the focus.
\par Text Font, Size, and Color
\par
Some widgets display text, such as input fields, pull-down
menus, and browsers.
@ -1020,34 +1080,40 @@ menus, and browsers.
\par Class
\par
This is how you use your own subclasses of
Fl_Widget. Whatever identifier you type in here will
be the class that is instantiated.
\par
In addition, no \p \#include header file is put in the
<tt>.h</tt> file. You must provide a \p \#include line as
the first line of the "Extra Code" which declares your
subclass.
\par
The class must be similar to the class you are spoofing. It
does not have to be a subclass. It is sometimes useful to
change this to another FLTK class. Currently the only way to get
a double-buffered window is to change this field for the window
to "Fl_Double_Window" and to add
\code \#include <FL/Fl_Double_Window.h> \endcode
\code #include <FL/Fl_Double_Window.h> \endcode
to the extra code.
\par Type (upper-right pulldown menu)
\par
Some classes have subtypes that modify their appearance or behavior.
You pick the subtype off of this menu.
\par Name (text field)
\par
Name of a variable to declare, and to store a pointer to this
widget into. This variable will be of type "<class>*". If the name is
blank then no variable is created.
\par
You can name several widgets with "name[0]", "name[1]", "name[2]",
etc. This will cause FLUID to declare an array of pointers. The array
is big enough that the highest number found can be stored. All widgets
@ -1055,6 +1121,7 @@ that in the array must be the same type.
\par Public (button)
\par
Controls whether the widget is publicly accessible. When
embedding widgets in a C++ class, this controls whether the
widget is \p public or \p private in the class.
@ -1063,15 +1130,18 @@ Otherwise is controls whether the widget is declared
\par Extra Code (text fields)
\par
These four fields let you type in literal lines of code to
dump into the <tt>.h</tt> or <tt>.cxx</tt> files.
\par
If the text starts with a <tt>\#</tt> or the word
\p extern then FLUID thinks this is an "include"
line, and it is written to the <tt>.h</tt> file. If the same
include line occurs several times then only one copy is
written.
\par
All other lines are "code" lines. The current
widget is pointed to by the local variable \p o. The
window being constructed is pointed to by the local variable
@ -1079,6 +1149,7 @@ window being constructed is pointed to by the local variable
function here, and any named widgets that are before this
one.
\par
FLUID will check for matching parenthesis, braces, and
quotes, but does not do much other error checking. Be careful
here, as it may be hard to figure out what widget is producing
@ -1088,13 +1159,16 @@ code.
\par Callback (text field)
\par
This can either be the name of a function, or a small snippet
of code. If you enter anything but letters, numbers, and the
of code. If you enter anything other than letters, numbers, and the
underscore then FLUID treats it as code.
A name names a function in your own code. It must be
\par
A name refers to a function in your own code. It must be
declared as <tt>void name(<class>*,void*)</tt>.
\par
A code snippet is inserted into a static function in the
<tt>.cxx</tt> output file. The function prototype is
<tt>void name(class *o, void *v)</tt>
@ -1104,16 +1178,19 @@ and quotes, but does not do much other error checking. Be
careful here, as it may be hard to figure out what widget is
producing an error in the compiler.
\par
If the callback is blank then no callback is set.
\par User Data (text field)
\par
This is a value for the \p user_data() of the widget.
If blank the default value of zero is used. This can be any
piece of C code that can be cast to a \p void pointer.
\par Type (text field)
\par
The \p void* in the callback function prototypes is
replaced with this. You may want to use \p long for old
XForms code. Be warned that anything other than \p void*
@ -1122,16 +1199,19 @@ pointer types are ok, and \p long is usually ok, too.
\par When (pulldown menu)
\par
When to do the callback. This can be \b Never,
\b Changed, \b Release, or \b Enter Key. The value of
<b>Enter Key</b> is only useful for text input fields.
\par
There are other rare but useful values for the
\p when() field that are not in the menu. You should use
the extra code fields to put these values in.
\par No Change (button)
\par
The <b>No Change</b> button means the callback is done on the
matching event even if the data is not changed.
@ -1208,56 +1288,67 @@ recommend you either put the images in the same directory as the
\par Notes for All Image Types
\par
FLUID runs using the default visual of your X server. This
may be 8 bits, which will give you dithered images. You may get
better results in your actual program by adding the code
"Fl::visual(FL_RGB)" to your code right before the
first window is displayed.
\par
All widgets with the same image on them share the same code
and source X pixmap. Thus once you have put an image on a
widget, it is nearly free to put the same image on many other
widgets.
\par
If you edit an image at the same time you are using it in FLUID,
the only way to convince FLUID to read the image file again is to
remove the image from all widgets that are using it or re-load the
<tt>.fl</tt> file.
\par
Don't rely on how FLTK crops images that are outside the
widget, as this may change in future versions! The cropping of
inside labels will probably be unchanged.
\par
To more accurately place images, make a new "box"
widget and put the image in that as the label.
\par XBM (X Bitmap) Files
\par
FLUID reads X bitmap files which use C source code to define
a bitmap. Sometimes they are stored with the ".h" or
".bm" extension rather than the standard
".xbm" extension.
\par
FLUID writes code to construct an Fl_Bitmap image and use it
to label the widget. The '1' bits in the bitmap are drawn using
the label color of the widget. You can change this color in the
FLUID widget attributes panel. The '0' bits are transparent.
\par
The program "bitmap" on the X distribution does an
adequate job of editing bitmaps.
\par XPM (X Pixmap) Files
\par
FLUID reads X pixmap files as used by the \p libxpm
library. These files use C source code to define a pixmap. The
filenames usually have the ".xpm" extension.
\par
FLUID writes code to construct an Fl_Pixmap image and use it
to label the widget. The label color of the widget is ignored,
even for 2-color images that could be a bitmap. XPM files can
mark a single color as being transparent, and FLTK uses this
information to generate a transparency mask for the image.
\par
We have not found any good editors for small iconic pictures.
For pixmaps we have used
<A href="http://home.worldonline.dk/~torsten/xpaint/index.html">XPaint</A>
@ -1265,6 +1356,7 @@ and the KDE icon editor.
\par BMP Files
\par
FLUID reads Windows BMP image files which are often used in
WIN32 applications for icons. FLUID converts BMP files into
(modified) XPM format and uses a Fl_BMP_Image image to label the
@ -1274,6 +1366,7 @@ the code may be much bigger than the <tt>.bmp</tt> file.
\par GIF Files
\par
FLUID reads GIF image files which are often used in HTML
documents to make icons. FLUID converts GIF files into
(modified) XPM format and uses a Fl_GIF_Image image to label the
@ -1284,6 +1377,7 @@ the first image of an animated GIF file is used.
\par JPEG Files
\par
If FLTK is compiled with JPEG support, FLUID can read JPEG
image files which are often used for digital photos. FLUID uses
a Fl_JPEG_Image image to label the widget, and writes
@ -1291,6 +1385,7 @@ uncompressed RGB or grayscale data to the source file.
\par PNG (Portable Network Graphics) Files
\par
If FLTK is compiled with PNG support, FLUID can read PNG
image files which are often used in HTML documents. FLUID uses a
Fl_PNG_Image image to label the widget, and writes uncompressed
@ -1298,7 +1393,6 @@ RGB or grayscale data to the source file. PNG images can provide
a full alpha channel for partial transparency, and FLTK supports
this as best as possible on each platform.
<A NAME="I18N"> </A> <!-- For old HTML links only ! -->
\section fluid_i18n Internationalization with FLUID
FLUID supports internationalization (I18N for short) of label
@ -1329,7 +1423,7 @@ need to call \p setlocale() and \p textdomain() or
message file.
To use GNU gettext for I18N, open the preferences window and
choose "GNU gettext" from the "Use" chooser. Two new input
choose "GNU gettext" from the \b Use: chooser. Two new input
fields will then appear to control the include file and
function/macro name to use when retrieving the localized label
strings.
@ -1337,12 +1431,12 @@ strings.
\image html fluid-gettext.gif "Figure 9-11: Internationalization using GNU gettext"
\image latex fluid-gettext.eps "Internationalization using GNU gettext" width=10cm
The \p \#include
The \b \#include
field controls the header file to include for
I18N; by default this is \b <libintl.h>, the
standard I18N file for GNU gettext.
The "Function" field controls the function (or macro) that
The \b Function: field controls the function (or macro) that
will retrieve the localized message; by default the
\p gettext function will be called.
@ -1354,7 +1448,7 @@ each <tt>.fl</tt> file; you still need to call
\p setlocale() to select the appropriate language.
To use POSIX catgets for I18N, open the preferences window
and choose "POSIX catgets" from the "Use" chooser. Three new
and choose "POSIX catgets" from the \b Use: chooser. Three new
input fields will then appear to control the include file,
catalog file, and set number for retrieving the localized label
strings.
@ -1362,18 +1456,18 @@ strings.
\image html fluid-catgets.gif "Figure 9-12: Internationalization using POSIX catgets"
\image latex fluid-catgets.eps "Internationalization using POSIX catgets" width=10cm
The \p \#include
The \b \#include
field controls the header file to include for
I18N; by default this is \b <nl_types.h>, the
standard I18N file for POSIX catgets.
The "File" field controls the name of the catalog file
The \b File: field controls the name of the catalog file
variable to use when retrieving localized messages; by default
the file field is empty which forces a local (static) catalog
file to be used for all of the windows defined in your
<tt>.fl</tt> file.
The "Set" field controls the set number in the catalog file.
The \b Set: field controls the set number in the catalog file.
The default set is 1 and rarely needs to be changed.
<A NAME="limitations"> </A> <!-- For old HTML links only ! -->