1XmbDrawText(3) XLIB FUNCTIONS XmbDrawText(3)
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6 XmbDrawText, XwcDrawText, Xutf8DrawText - draw text using multiple font
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10 void XmbDrawText(Display *display, Drawable d, GC gc, int x, int y,
11 XmbTextItem *items, int nitems);
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13 void XwcDrawText(Display *display, Drawable d, GC gc, int x, int y,
14 XwcTextItem *items, int nitems);
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16 void Xutf8DrawText(Display *display, Drawable d, GC gc, int x, int y,
17 XmbTextItem *items, int nitems);
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20 d Specifies the drawable.
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22 display Specifies the connection to the X server.
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24 gc Specifies the GC.
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26 items Specifies an array of text items.
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28 nitems Specifies the number of text items in the array.
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30 x
31 y Specify the x and y coordinates.
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34 The XmbDrawText, XwcDrawText and Xutf8DrawText functions allow complex
35 spacing and font set shifts between text strings. Each text item is
36 processed in turn, with the origin of a text element advanced in the
37 primary draw direction by the escapement of the previous text item. A
38 text item delta specifies an additional escapement of the text item
39 drawing origin in the primary draw direction. A font_set member other
40 than None in an item causes the font set to be used for this and subse‐
41 quent text items in the text_items list. Leading text items with a
42 font_set member set to None will not be drawn.
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44 XmbDrawText, XwcDrawText and Xutf8DrawText do not perform any context-
45 dependent rendering between text segments. Clients may compute the
46 drawing metrics by passing each text segment to XmbTextExtents, XwcTex‐
47 tExtents, Xutf8TextExtents or XmbTextPerCharExtents, XwcTextPerCharEx‐
48 tents. Xutf8TextPerCharExtents. When the XFontSet has missing
49 charsets, each unavailable character is drawn with the default string
50 returned by XCreateFontSet. The behavior for an invalid codepoint is
51 undefined.
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53 The function Xutf8DrawText is an extension introduced by The XFree86
54 Project, Inc., in their 4.0.2 release. Its presence is indicated by
55 the macro X_HAVE_UTF8_STRING.
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58 The XmbTextItem structure contains:
59 typedef struct {
60 char *chars; /* pointer to string */
61 int nchars; /* number of bytes */
62 int delta; /* pixel delta between strings */
63 XFontSet font_set; /* fonts, None means don't change */
64 } XmbTextItem;
65 The XwcTextItem structure contains:
66 typedef struct {
67 wchar_t *chars; /* pointer to wide char string */
68 int nchars; /* number of wide characters */
69 int delta; /* pixel delta between strings */
70 XFontSet font_set; /* fonts, None means don't change */
71 } XwcTextItem;
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74 XDrawImageString(3), XDrawString(3), XDrawText(3), XmbDrawIm‐
75 ageString(3), XmbDrawString(3)
76 Xlib - C Language X Interface
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80X Version 11 libX11 1.7.0 XmbDrawText(3)