Editing Release Notes for FM Lite 0.4.7

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1. New Features
---------------
1.1 The following user control classes are now implemented:

STANDARD    This is the default ("standard") scroll bar style that we all know
                and love from previous versions of FM.

SCROLLBAR   A bare Windows scroll bar, without the two automatic buddy controls
                associated with the STANDARD control class.

TRACKBAR    A standard Windows95 track bar control -- a welcome alternative
                to the time-worn scroll bar control.

PUSHBUTTON  A standard Windows push button control.

CHECKBOX    A standard Windows check box control.

RADIOBUTTON A standard Windows radio button control.

GROUPBOX    A standard Windows group box control.  Together with a set of
                RADIOBUTTON controls, this control can be used to construct
                a grouping of mutually-exclusive radio buttons.

OWNERDRAW   A standard Windows owner-drawn control, in which the FD is
                responsible for drawing the appearance.  Can be used as a
                simple push button.

STATICTEXT  A static (read-only) text control.  Usually used for displaying
                fixed text strings, but can also be used as a simple push
                button.

FRAME       A standard Windows frame control, consisting of a styled
                rectangular frame.  Can be used as a simple push button.

RECT        A standard Windows rectangle control, consisting of a filled
                black, gray, or white rectangle.  Can be used as a simple push
                button.

To specify the class of a user control, specify one of the above keywords
    as the *first* subkey for the Ctl key.  For example, to create a check box
    control:

Ctl(3):CHECKBOX,"&Demo",size=(34,14),pos=(214,126)

1.2 A new built-in function createCtl() has been added to allow the dynamic
    creation of controls within the filter code:

createCtl(n, c, t, x, y, w, h, s, sx, p, e)

Dynamically creates a control with index n, class c, text t,
        coordinates (x,y), width w, height h, style s, extended style sx,
        properties p, and enable level e. All measurements are in DBUs.
        For x, y, w, and h, a value of -1 means use the default value.
        The class c should be one of the following predefined values:
        CC_STANDARD, CC_SCROLLBAR, CC_TRACKBAR, CC_PUSHBUTTON, CC_CHECKBOX,
        CC_RADIOBUTTON, CC_GROUPBOX, CC_OWNERDRAW, CC_STATICTEXT, CC_FRAME,
        or CC_RECT,

1.3 Tool tips are now provided for the OK, Cancel, Edit, Zoom-in, and Zoom-out
    buttons, as well as the progress bar, the host application static text field,
    and the preview window.  Automatic tracking tool tips are also available for
    the TRACKBAR control class when the 'TopTip' attribute is specified.  A full
    implementation of FD-specifiable tool tips for user controls will be available
    in a later release.

1.4 Most of the standard C run-time i/o library routines (stdio) are now exposed
    in FM.  The following functions are now built-ins in FM:

clearerr            fscanf
        fclose              fseek
        fcloseall           ftell
        feof                fwrite
        ferror              getc
        fflush              putc
        fgetc               remove
        fgets               rename
        flushall            rewind
        fopen               sprintf
        fprintf             sscanf
        fputc               tmpfile
        fputs               tmpnam
        fread               ungetc
        freopen

The following stdio functions are not yet implemented.  Use ftell() and
    fseek() instead:

fgetpos
        fsetpos

The following stdio functions are not implemented because they implicitly
    reference one of the standard i/o units (stdin, stdout, or stderr), which
    are not implemented in FM.  Use the corresponding file-oriented function
    instead.

getchar
        gets
        perror
        printf
        putchar
        puts
        scanf

For documentation of these functions, see any standard C run-time library
    reference.

1.5 Two new built-in functions have been added: RGB(r,g,b) and RGBA(r,g,b,a).
    RGB() packs three 8-bit RGB color values (r, g, b) into a single 32-bit
    integer.  RGBA() packs three 8-bit RGB color values and an 8-bit alpha channel
    value into a 32-bit integer.  RGB() is useful for creating RGB color values
    for the 2nd argument of the setCtlColor() and setCtlFontColor() built-ins.
    For example, setCtlFontColor(12, RGB(255,255,0)) will set the text color
    for control 12 to yellow.

1.6 A new built-in intrinsic function COLOR(<color>) has been added.  COLOR()
    takes as an argument the same syntax that the Color=<color> subkey takes.
    For example, <color> can be a simple color name (yellow, red, salmon), a
    qualified X11, HTML, JAVA, or Netscape color name (X11.AliceBlue,
    HTML.Aquamarine, JAVA.darkGray, NS.NetscapeGray), a Windows95 UI color name
    (COLOR_BTNFACE, COLOR_DESKTOP), an RGB triple (RGB(55,255,70)), an HTML-style
    hexadecimal color specifier in RGB order (#cc00ff), or a 24-bit hexadecimal
    constant in BGR order (0xff00cc).
    
    As an example, setCtlFontColor(12, COLOR(yellow)) will set the text color
    for control 12 to yellow.

1.7 Two new built-in functions have been added: setCtlTextv() and setDialogTextv().
    These are similar to setCtlText() and setDialogText() but take a C-style i/o
    format string and a variable list of arguments to perform more sophisticated
    formatting of output strings.  The calling sequences are:

setCtlTextv(n, fmt, arg1, ...)

and

setDialogTextv(fmt, arg1, ...)

where

n         is the index of a control,
        fmt       is a C-style format specifier string,
        arg1, ... are optional arguments to be interpolated into the format string.

2. Changes
----------
2.1 FM now asks the FD whether he/she wants to recompile the filter source
    code whenever the FD tries to run the filter and the compiled code is
    out-of-date (because either the source has changed or compilation options
    have changed).

2.2 User-defined dialog attributes (such as the background image and color, the
    title bar style, etc.) are now reset to their default values after a
    compilation.  This fixes a problem in which some of these attributes were
    inadvertently "sticky" across compilations.

2.3 Dialog attributes such as the background image and color, the title bar
    style, the drag mode, etc., are now saved and restored across invocations
    of FM.

2.4 Coordinates for the Region= subkey of the Dialog key are now specified in
    Dialog Box Units (DBUs) instead of pixels.  This means that the dialog
    region will now scale automatically across changes to the Windows System
    Font size.  This change also applies to the relevant arguments of the
    built-in functions createRectRgn(), createRoundRectRgn(), createCircularRgn(),
    createEllipticRgn(), and createPolyRgn().

2.5 The Color= and FontColor= subkeys of the Ctl key are now functional.
    Color=<color> sets the background or body color of the control to the
    specified color (or causes the body/background of the control to be transparent
    if Color=Transparent is specified).  FontColor=<color> sets the color of text
    for the control.  Note that the interpretation and validity of these
    subkeys varies among control classes.  For some classes, the background color
    is meaningless or unmodifiable.  For other classes (such as the PUSHBUTTON
    class), the FontColor subkey has no effect.  The corresponding built-in
    functions setCtlColor(n, color) and setCtlFontColor(n, color) are now also
    functional.

2.6 The text buddy control for the default (STANDARD) scroll bar control has been
    changed from a read-only text field to an editable text field.  This means
    that the user can now enter a numeric value directly in the text field to
    set the value of the control.

2.7 The built-in function chk(n) is now just a synonym for ctl(n), and the use
    of chk(n) is deprecated.

2.8 You can use an asterisk (*) instead of the special value -1 in a Size= or
    Pos= subkey to specify a component which is not to be changed.  For example,
    Size=(40,*) can be used to change the width of a control to 40 DBUs without
    changing its height.

2.9 Tab stops have been removed from all controls in the expanded Edit and Advanced
    Edit areas of the FM dialog.  These controls can still be accessed from the
    keyboard in most cases by using their shortcut keys.

3. Bug Fixes
------------
3.1 FM now forces the dialog background to be redrawn whenever the dialog size
    is changed.  This fixes a problem in which the background could be left
    in a stale state when, for example, the user entered or exited Edit Mode.

3.2 Occasionally FM could cause a GP if the user pressed a button or initiated
    a zoom-in or zoom-out while simultaneously trying to drag the preview image
    with the zero-drag option in effect.  This bug has been fixed.

3.3 A problem in which the filter algorithm code could sometimes be recursively
    reentered has been fixed.

3.4 Some ambiguities in parsing FFW-style vs. FFP-style keys (such as the common
    Ctl key) have been resolved.

4. Known Problems
-----------------
4.1 For TRACKBAR controls, the Color= subkey has problems setting the background
    color of the control.  The color will not be updated until the first time a
    user clicks on the track bar control.

4.2 The new dialog size is not always computed correctly when switching between
    edit modes or when changing title bar attributes.

4.3 Vertically-oriented scroll bars and track bars don't work yet.

4.4 For the STATICTEXT control class, the attributes 'EndEllipsis', 'PathEllipsis',
    and 'WordEllipsis' do not work.

4.5 Some features of Win95 controls require comctl32.dll version 4.71 or later.
    (E.g., setting colors for a progress bar requires 4.71 or later).  Comctl32.dll
    is not a redistributable DLL, but can be obtained by installing Microsoft
    Internet Explorer 4.0 on your system.  Earlier versions of comctl32.dll, such
    as version 4.70, will also work, but you may lose some functionality.

4.6 When the user presses ENTER in the text edit buddy of a STANDARD control,
    the control will "ding" even if the value entered is perfectly valid.

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