XmbDrawText


HOME

XmbDrawText

NAME
SYNTAX
ARGUMENTS
DESCRIPTION
STRUCTURES
SEE ALSO

NAME

XmbDrawText, XwcDrawText, Xutf8DrawText − draw text using multiple font sets

SYNTAX

void XmbDrawText(Display *display, Drawable d, GC gc, int x, int y, XmbTextItem *items, int nitems);

void XwcDrawText(Display *display, Drawable d, GC gc, int x, int y, XwcTextItem *items, int nitems);

void Xutf8DrawText(Display *display, Drawable d, GC gc, int x, int y, XmbTextItem *items, int nitems);

ARGUMENTS

d

Specifies the drawable.

display

Specifies the connection to the X server.

gc

Specifies the GC.

items

Specifies an array of text items.

nitems

Specifies the number of text items in the array.

x

y

Specify the x and y coordinates.

DESCRIPTION

The XmbDrawText, XwcDrawText and Xutf8DrawText functions allow complex spacing and font set shifts between text strings. Each text item is processed in turn, with the origin of a text element advanced in the primary draw direction by the escapement of the previous text item. A text item delta specifies an additional escapement of the text item drawing origin in the primary draw direction. A font_set member other than None in an item causes the font set to be used for this and subsequent text items in the text_items list. Leading text items with a font_set member set to None will not be drawn.

XmbDrawText, XwcDrawText and Xutf8DrawText do not perform any context-dependent rendering between text segments. Clients may compute the drawing metrics by passing each text segment to XmbTextExtents, XwcTextExtents, Xutf8TextExtents or XmbTextPerCharExtents, XwcTextPerCharExtents. Xutf8TextPerCharExtents. When the XFontSet has missing charsets, each unavailable character is drawn with the default string returned by XCreateFontSet. The behavior for an invalid codepoint is undefined.

The function Xutf8DrawText is an extension introduced by The XFree86 Project, Inc. in their 4.0.2 release. Its presence is indicated by the macro X_HAVE_UTF8_STRING.

STRUCTURES

The XmbTextItem structure contains:
typedef struct {

char *chars;

/* pointer to string */

int nchars;

/* number of bytes */

int delta;

/* pixel delta between strings */

XFontSet font_set;

/* fonts, None means don’t change */

} XmbTextItem;

The XwcTextItem structure contains:
typedef struct {

wchar_t *chars;

/* pointer to wide char string */

int nchars;

/* number of wide characters */

int delta;

/* pixel delta between strings */

XFontSet font_set;

/* fonts, None means don’t change */

} XwcTextItem;

SEE ALSO

XDrawImageString(3), XDrawString(3), XDrawText(3), XmbDrawImageString(3), XmbDrawString(3)
Xlib − C Language X Interface






Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.





Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.


Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.





Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.


Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.





Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.


Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.