ref: d09cf07a82cf4ffb846a31d0384e774b4c4661e1
dir: /man/9/types/
.TH TYPES 9
.SH NAME
types \- Standard types required by widget options.
.SH DESCRIPTION
This manual entry describes the the standard types
that can be given as arguments to Inferno Tk widget
options. When an option is documented, the type
of argument that it accepts is either documented
there, or the name of the argument refers to one of the
names documented below.
.TP
.I anchorPos
One of the values \f5n\fR, \f5ne\fR, \f5e\fR, \f5se\fR,
\f5s\fR, \f5sw\fR, \f5w\fR, \f5nw\fR, or \f5center\fR.
See
.B -anchor
in
.IR options (9).
.TP
.I boolean
A true or false value, one of the following:
\f50\fP, \f5no\fP, \f5off\fP,
\f5false\fP (false),
\f51\fP, \f5yes\fP, \f5on\fP,
\f5true\fP (true).
.TP
.I bitmap
Identifies an image which can be drawn, or used as a mask
through which something else is drawn. If
.I bitmap
begins with a
.RB ` @ ',
the remaining characters must be the path name of
an Inferno image file. If
.I bitmap
begins with the character
.RB ` < ',
the remaining characters must be a decimal integer
giving the file descriptor number of an open file (see
.IR sys-open (2))
from which the bitmap can be loaded. Otherwise,
.I bitmap
should be the name of a bitmap file in the directory
.BR /icons/tk .
.TP
.I color
A
.I color
parameter can be a colour name or an RGB (red, green and blue
luminance) value. The colour names recognized are:
.EX
aqua yellow red teal white
fuchsia black blue darkblue transparent
maroon gray green lime
purple navy olive orange
.EE
For RGB values, either
.BI # rgb
or
.BI # rrggbb
can be used, where
.IR r ,
.IR rr ,
etc. are hexadecimal values for the corresponding colour
components.
The notation
.BI #rrggbbaa
can be used to describe a colour with alpha (transparency) component
.IR aa ;
the
.IR rr ,
.IR gg ,
and
.IR bb
values should be pre-multiplied appropriately. This is the
canonical form for colour values. Alternatively, transparency
can be applied to any other colour using a suffix
.BI * alpha
where
.I alpha
is either
.BI #aa
(two hex digits representing an alpha value between 0 and 255)
or
.I f
(a decimal fixed point number between 0 and 1).
For example,
.B red*0.5
gives half transparent red;
.B #007f007f*#7f
gives 0.75 transparent green (canonically
.B #003f003f).
.TP
.I dist
.I Dist
specifies a distance on the screen, in the following form:
an optional minus sign
.RB ( - ),
then one or more decimal digits (with possible
embedded decimal point), then an optional units
specifier. The unit specifiers are the following:
.RS
.TP
.B c
centimetres
.TP
.B m
millimetres
.TP
.B i
inches
.TP
.B p
points (1/72th inch)
.TP
.B h
height of widget's font (only applicable if the widget
has an associated font, and if the font has previously been set).
.TP
.B w
width of the zero
.RB ( 0 )
character in widget's font. (see above).
.TP
Measurements are converted into pixels assuming 100 dots
per inch on an average CRT display.
.RE
.TP
.I font
A
.I font
parameter gives the full path name of an Inferno font file;
for example,
.BR /fonts/pelm/unicode.9.font .
.TP
.I frac
A numeric, possibly fractional, value.
.TP
.I relief
One of \f5raised\fR, \f5sunken\fR, \f5flat\fR, \f5ridge\fR,
or \f5groove\fR. See
.B -relief
in
.IR options (9).
.SH SEE ALSO
.IR intro (9),
.IR options (9)