202 lines
8.6 KiB
Groff
202 lines
8.6 KiB
Groff
.\" $Xorg: xfd.man,v 1.4 2001/02/09 02:05:42 xorgcvs Exp $
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.\" Copyright 1989, 1994, 1998 The Open Group
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.\"
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.\" Permission to use, copy, modify, distribute, and sell this software and its
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.\" documentation for any purpose is hereby granted without fee, provided that
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.\" the above copyright notice appear in all copies and that both that
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.\" copyright notice and this permission notice appear in supporting
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.\" documentation.
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.\"
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.\" The above copyright notice and this permission notice shall be included
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.\" in all copies or substantial portions of the Software.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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.\" OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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.\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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.\" IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
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.\" OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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.\" ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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.\" OTHER DEALINGS IN THE SOFTWARE.
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.\"
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.\" Except as contained in this notice, the name of The Open Group shall
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.\" not be used in advertising or otherwise to promote the sale, use or
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.\" other dealings in this Software without prior written authorization
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.\" from The Open Group.
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.\"
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.\" $XFree86: xc/programs/xfd/xfd.man,v 1.9 2003/04/19 23:49:27 herrb Exp $
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.\"
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.TH XFD 1 __xorgversion__
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.SH NAME
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xfd \- display all the characters in an X font
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.SH SYNOPSIS
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.B xfd
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[\-options ...] \fB\-fn\fP \fIfontname\fP
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.PP
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.B xfd
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[\-options ...] \fB\-fa\fP \fIfontname\fP
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.SH DESCRIPTION
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The \fIxfd\fP utility creates a window containing the name of the font being
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displayed, a row of command buttons, several lines of text for displaying
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character metrics, and a grid containing one glyph per cell. The
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characters are shown in increasing order from left to right, top to
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bottom. The first character displayed at the top left will be character
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number 0 unless the \fB\-start\fP option has been supplied in which case the
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character with the number given in the \fB\-start\fP option will be used.
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.PP
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The characters are displayed in a grid of boxes, each large enough to hold
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any single character in the font. Each character glyph is drawn using
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the PolyText16 request (used by the \fIXlib\fP routine \fBXDrawString16\fP)
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or the XftDrawString32 routine, depending on whether the \fB\-fn\fP or
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\fB\-fa\fP option was given.
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If the \fB\-box\fP option is given, a rectangle will be drawn around each
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character, showing where an ImageText16 request (used by the \fIXlib\fP
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routine \fBXDrawImageString16\fP) would cause background color to be displayed.
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.PP
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The origin of each glyph is normally set so that the character is drawn in
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the upper left hand corner of the grid cell. However, if a glyph has a
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negative left bearing or an unusually large ascent, descent, or right bearing
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(as is the case with \fIcursor\fP font), some character may not appear in their
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own grid cells. The \fB\-center\fP option may be used to force all glyphs to
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be centered in their respective cells.
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.PP
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All the characters in the font may not fit in the window at once.
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To see the next page of glyphs, press the \fINext\fP button at the top
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of the window. To see the previous page, press \fIPrev\fP. To exit \fIxfd\fP,
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press \fIQuit\fP.
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.PP
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Individual character metrics (index, width, bearings, ascent and descent) can
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be displayed at the top of the window by clicking on the desired character.
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.PP
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The font name displayed at the top of the window is the full name of the
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font, as determined by the server. See \fIxlsfonts\fP and \fIfc-list\fP
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for ways to generate lists of fonts, as well as more detailed summaries of
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their metrics and properties.
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.SH "OPTIONS"
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.PP
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.I xfd
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accepts all of the standard toolkit command line options along with
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the additional options listed below:
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.TP 8
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.B \-fn \fIfont\fP
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This option specifies the core X server side font to be displayed.
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This can also be set with
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the FontGrid \fBfont\fP resource. A font must be specified.
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.TP 8
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.B \-fa \fIfont\fP
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This option specifies a Xft font to be displayed. This can also be set with
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the FontGrid \fBface\fP resource. A font pattern must be specified.
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.TP 8
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.B \-box
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This option indicates that a box should be displayed outlining the area
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that would be filled with background color by an ImageText request.
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This can also be set with
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the FontGrid \fBboxChars\fP resource. The default is False.
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.TP 8
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.B \-center
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This option indicates that each glyph should be centered in its grid.
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This can also be set with
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the FontGrid \fBcenterChars\fP resource. The default is False.
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.TP 8
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.B \-start \fInumber\fP
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This option specifies the glyph index of the upper left hand corner of the
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grid. This is used to view characters at arbitrary locations in the font.
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This can also be set with
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the FontGrid \fBstartChar\fP resource. The default is 0.
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.TP 8
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.B \-bc \fIcolor\fP
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This option specifies the color to be used if ImageText boxes are drawn.
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This can also be set with
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the FontGrid \fBboxColor\fP resource.
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.TP 8
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.B \-rows \fInumrows\fP
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This option specifies the number of rows in the grid.
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This can also be set with
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the FontGrid \fBcellRows\fP resource.
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.TP 8
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.B \-columns \fInumcols\fP
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This option specifies the number of columns in the grid.
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This can also be set with
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the FontGrid \fBcellColumns\fP resource.
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.SH WIDGETS
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In order to specify resources, it is useful to know the
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widgets which compose \fIxfd\fR. In the notation below, indentation
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indicates hierarchical structure. The widget class name is given first,
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followed by the widget instance name.
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The application class name is Xfd.
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.sp
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.nf
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.ta .5i 1.0i 1.5i 2.0i 2.5i 3.0i 3.5i 4.0i 4.5i 5.0i 5.5i 6.0i 6.5i 7.0i
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Xfd xfd
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Paned pane
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Label fontname
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Box box
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Command quit
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Command prev
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Command next
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Label select
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Label metrics
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Label range
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Label start
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Form form
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FontGrid grid
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.fi
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.SH FONTGRID RESOURCES
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The FontGrid widget is an application-specific widget, and a subclass
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of the Simple widget in the Athena widget set. The effects and
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instance names of this widget's resources are given in the
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\fBOPTIONS\fP section. Capitalize the first letter of the resource
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instance name to get the corresponding class name.
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.SH APPLICATION SPECIFIC RESOURCES
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The instance names of the application specific resources
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are given below. Capitalize the first letter of the resource
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instance name to get the corresponding class name.
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These resources are unlikely to be interesting unless you are localizing
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xfd for a different language.
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.TP 8
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.B selectFormat
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Specifies a printf-style format string used to display information
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about the selected character. The default is "character 0x%02x%02x
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(%u,%u) (%#o,%#o)". The arguments that will come after the format string are
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char.byte1, char.byte2, char.byte1, char.byte2, char.byte1, char.byte2.
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char.byte1 is byte 1 of the selected character.
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char.byte2 is byte 2 of the selected character.
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.TP 8
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.B metricsFormat
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Specifies a printf-style format string used to display character
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metrics. The default is "width %d; left %d, right %d; ascent %d,
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descent %d (font %d, %d)". The arguments that will come after the
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format string are the character metrics width, lbearing, rbearing,
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character ascent, character descent, font ascent, and font descent.
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.TP 8
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.B rangeFormat
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Specifies a printf-style format string used to display the range of
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characters currently being displayed. The default is "range:
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0x%02x%02x (%u,%u) thru 0x%02x%02x (%u,%u)". The arguments that will
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come after the format string are the following fields from the
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XFontStruct that is returned from opening the font:
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min_byte1, min_char_or_byte2, min_byte1, min_char_or_byte2,
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max_byte1, max_char_or_byte2, max_byte1, max_char_or_byte2.
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.TP 8
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.B startFormat
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Specifies a printf-style format string used to display information
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about the character at the upper left corner of the font grid. The
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default is "upper left: 0x%04x (%d,%d)". The arguments that will come
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after the format string are the new character, the high byte of the new
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character, and the low byte of the new character.
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.TP 8
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.B nocharFormat
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Specifies a printf-style format string to display when the selected
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character does not exist. The default is "no such character
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0x%02x%02x (%u,%u) (%#o,%#o)". The arguments that will come after the
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format string are the same as for the \fBselectFormat\fP resource.
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.SH "SEE ALSO"
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X(__miscmansuffix__), xlsfonts(__appmansuffix__), xrdb(__appmansuffix__), xfontsel(__appmansuffix__), fc-list(__appmansuffix__),
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fonts.conf(__filemansuffix__),
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.I "X Logical Font Description Conventions"
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.SH "BUGS"
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The program should skip over pages full of non-existent characters.
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.SH AUTHOR
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Jim Fulton, MIT X Consortium; previous program of the same name by
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Mark Lillibridge, MIT Project Athena.
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