219 lines
4.5 KiB
Plaintext
219 lines
4.5 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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.ft 1
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.ny0
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.TH XmbDrawText 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
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.SH NAME
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XmbDrawText, XwcDrawText \- draw text using multiple font sets
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.SH SYNTAX
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void XmbDrawText\^(\^\fIdisplay\fP\^, \fId\fP\^, \fIgc\fP\^, \fIx\fP\^, \fIy\fP\^, \fIitems\fP\^, \fInitems\fP\^)
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.br
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Display *\fIdisplay\fP\;
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.br
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Drawable \fId\fP\^;
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.br
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GC \fIgc\fP\^;
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.br
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int \fIx\fP\^, \fIy\fP\^;
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.br
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XmbTextItem *\fIitems\fP\^;
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.br
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int \fInitems\fP\^;
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.LP
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void XwcDrawText\^(\^\fIdisplay\fP\^, \fId\fP\^, \fIgc\fP\^, \fIx\fP\^, \fIy\fP\^, \fIitems\fP\^, \fInitems\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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Drawable \fId\fP\^;
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.br
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GC \fIgc\fP\^;
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.br
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int \fIx\fP\^, \fIy\fP\^;
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.br
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XwcTextItem *\fIitems\fP\^;
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.br
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int \fInitems\fP\^;
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.SH ARGUMENTS
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.\" $Header: d.a,v 1.1 88/02/26 10:04:25 mento Exp $
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.IP \fId\fP 1i
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Specifies the drawable.
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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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.\" $Header: gc.a,v 1.2 88/05/09 11:20:34 mento Exp $
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.IP \fIgc\fP 1i
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Specifies the GC.
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.\" $Header: items.a,v 1.1 88/02/26 10:28:21 mento Exp $
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.IP \fIitems\fP 1i
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Specifies an array of text items.
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.\" $Header: nitems.a,v 1.1 88/02/26 10:29:33 mento Exp $
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.IP \fInitems\fP 1i
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Specifies the number of text items in the array.
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.ds Xy
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.\" $Header: xy_gen.a,v 1.2 88/08/04 11:22:37 mento Exp $
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.IP \fIx\fP 1i
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.br
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.ns
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.IP \fIy\fP 1i
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Specify the x and y coordinates\*(Xy.
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.SH DESCRIPTION
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.ZN XmbDrawText
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and
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.ZN XwcDrawText
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allow complex spacing and font set shifts between text strings.
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Each text item is processed in turn, with the origin of a text
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element advanced in the primary draw direction by the escapement of the
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previous text item.
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A text item delta specifies an additional escapement of the text item
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drawing origin in the primary draw direction.
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A font_set member other than
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.ZN None
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in an item causes the font set to be used for this and subsequent text items
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in the text_items list.
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Leading text items with font_set member set to
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.ZN None
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will not be drawn.
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.LP
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.ZN XmbDrawText
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and
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.ZN XwcDrawText
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do not perform any context-dependent rendering between text segments.
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Clients may compute the drawing metrics by passing each text segment to
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.ZN XmbTextExtents
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and XwcTextExtents
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or
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.ZN XmbTextPerCharExtents
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and
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.ZN XwcTextPerCharExtents .
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When the
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.ZN XFontSet
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has missing charsets, each unavailable character is drawn
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with the default string returned by
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.ZN XCreateFontSet .
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The behavior for an invalid codepoint is undefined.
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.SH STRUCTURES
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The
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.ZN XmbTextItem
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structure contains:
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.Ds 0
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.TA .5i 2.5i
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.ta .5i 2.5i
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typedef struct {
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char *chars; /* pointer to string */
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int nchars; /* number of characters */
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int delta; /* pixel delta between strings */
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XFontSet font_set; /* fonts, None means don't change */
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} XmbTextItem;
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.De
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The
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.ZN XwcTextItem
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structure contains:
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.Ds 0
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.TA .5i 2.5i
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.ta .5i 2.5i
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typedef struct {
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wchar_t *chars; /* pointer to wide char string */
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int nchars; /* number of wide characters */
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int delta; /* pixel delta between strings */
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XFontSet font_set; /* fonts, None means don't change */
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} XwcTextItem;
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.De
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.SH "SEE ALSO"
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XDrawImageString(3X11),
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XDrawString(3X11),
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XDrawText(3X11),
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XmbDrawImageString(3X11),
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XmbDrawString(3X11)
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.br
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\fI\*(xL\fP
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