241 lines
6.1 KiB
Plaintext
241 lines
6.1 KiB
Plaintext
.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.na
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.de Ds
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.nf
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.\\$1D \\$2 \\$1
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.ft 1
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.ny0
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.TH XListFonts 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
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.SH NAME
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XListFonts, XFreeFontNames, XListFontsWithInfo, XFreeFontInfo \- obtain or free font names and information
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.SH SYNTAX
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.\" $Header: XFontNames.f,v 1.1 88/02/26 10:00:12 mento Exp $
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char **XListFonts\^(\^\fIdisplay\fP, \fIpattern\fP\^, \fImaxnames\fP, \fIactual_count_return\fP\^)
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.br
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Display *\^\fIdisplay\fP\^;
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.br
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char *\^\fIpattern\fP\^;
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.br
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int \fImaxnames\fP\^;
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.br
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int *\^\fIactual_count_return\fP\^;
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.LP
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.\" $Header: XFrFntNames.f,v 1.1 88/02/26 10:00:15 mento Exp $
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XFreeFontNames\^(\^\fIlist\fP\^)
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.br
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char *\fIlist\fP\^[\^]\^;
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.LP
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char **XListFontsWithInfo\^(\^\fIdisplay\fP, \fIpattern\fP, \fImaxnames\fP, \fIcount_return\fP, \fIinfo_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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char *\fIpattern\fP\^;
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.br
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int \fImaxnames\fP\^;
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.br
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int *\fIcount_return\fP\^;
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.br
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XFontStruct **\fIinfo_return\fP\^;
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.LP
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XFreeFontInfo(\^\fInames\fP, \fIfree_info\fP, \fIactual_count\fP\^)
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.br
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char **\fInames\fP\^;
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.br
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XFontStruct *\fIfree_info\fP;
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.br
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int \fIactual_count\fP\^;
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.SH ARGUMENTS
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.IP \fIactual_count\fP 1i
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Specifies the actual number of matched font names returned by
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.ZN XListFontsWithInfo .
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.IP \fIactual_count_return\fP 1i
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Returns the actual number of font names.
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.IP \fIcount_return\fP 1i
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Returns the actual number of matched font names.
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.\" $Header: display.a,v 1.1 88/02/26 10:26:29 mento Exp $
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.IP \fIinfo_return\fP 1i
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Returns the font information.
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.IP \fIfree_info\fP 1i
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Specifies the font information returned by
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.ZN XListFontsWithInfo .
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.\" $Header: list.a,v 1.1 88/02/26 10:28:40 mento Exp $
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.IP \fIlist\fP 1i
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Specifies the array of strings you want to free.
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.IP \fImaxnames\fP 1i
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Specifies the maximum number of names to be returned.
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.IP \fInames\fP 1i
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Specifies the list of font names returned by
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.ZN XListFontsWithInfo .
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.\" $Header: pattern.a,v 1.4 88/05/13 11:08:04 mento Exp $
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.IP \fIpattern\fP 1i
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Specifies the null-terminated pattern string that can contain wildcard
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characters.
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.SH DESCRIPTION
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.\" $Header: XFontNames.d,v 1.2 88/06/11 07:50:36 mento Exp $
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The
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.ZN XListFonts
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function returns an array of available font names
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(as controlled by the font search path; see
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.ZN XSetFontPath )
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that match the string you passed to the pattern argument.
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The pattern string can contain any characters,
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but each asterisk (*) is a wildcard for any number of characters,
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and each question mark (?) is a wildcard for a single character.
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If the pattern string is not in the Host Portable Character Encoding
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the result is implementation dependent.
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Use of uppercase or lowercase does not matter.
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Each returned string is null-terminated.
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If the data returned by the server is in the Latin Portable Character Encoding,
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then the returned strings are in the Host Portable Character Encoding.
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Otherwise, the result is implementation dependent.
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If there are no matching font names,
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.ZN XListFonts
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returns NULL.
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The client should call
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.ZN XFreeFontNames
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when finished with the result to free the memory.
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.LP
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.\" $Header: XFrFntNames.d,v 1.2 88/04/23 09:33:05 mento Exp $
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The
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.ZN XFreeFontNames
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function frees the array and strings returned by
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.ZN XListFonts
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or
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.ZN XListFontsWithInfo .
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.LP
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.\" $Header: XFNameInfo.d,v 1.3 88/06/11 07:50:14 mento Exp $
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The
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.ZN XListFontsWithInfo
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function returns a list of font names that match the specified pattern and their
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associated font information.
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The list of names is limited to size specified by maxnames.
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The information returned for each font is identical to what
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.ZN XLoadQueryFont
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would return except that the per-character metrics are not returned.
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The pattern string can contain any characters,
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but each asterisk (*) is a wildcard for any number of characters,
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and each question mark (?) is a wildcard for a single character.
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If the pattern string is not in the Host Portable Character Encoding
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the result is implementation dependent.
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Use of uppercase or lowercase does not matter.
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Each returned string is null-terminated.
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If the data returned by the server is in the Latin Portable Character Encoding,
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then the returned strings are in the Host Portable Character Encoding.
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Otherwise, the result is implementation dependent.
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If there are no matching font names,
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.ZN XListFontsWithInfo
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returns NULL.
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.LP
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To free only the allocated name array,
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the client should call
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.ZN XFreeFontNames .
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To free both the name array and the font information array,
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or to free just the font information array,
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the client should call
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.ZN XFreeFontInfo .
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.LP
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.\" $Header: XFFontInfo.d,v 1.1 88/02/26 10:41:55 mento Exp $
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The
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.ZN XFreeFontInfo
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function frees the the font information array.
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To free an
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.ZN XFontStruct
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structure without closing the font,
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call
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.ZN XFreeFontInfo
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with the names argument specified as NULL.
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.SH "SEE ALSO"
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XLoadFont(3X11),
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XSetFontPath(3X11)
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.br
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\fI\*(xL\fP
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