xwctextpropertytotextlist(3) [hpux man page]
XwcTextPropertyToTextList() XwcTextPropertyToTextList()
Name
XwcTextPropertyToTextList - convert an internationalized text property to a list of wide-
character strings.
Synopsis
int XwcTextPropertyToTextList(display, text_prop, list_return, count_return)
Display *display;
XTextProperty *text_prop;
wchar_t ***list_return;
int *count_return;
Arguments
display Specifies the connection to the X server.
text_prop Specifies the XTextProperty structure to be used.
list_return
Returns a list of NULL-terminated character strings.
count_return
Returns the number of strings.
Returns
Success on success. XNoMemory, XLocaleNotSupported, or XConverterNotFound on failure. The number of unconvertible characters on partial
success.
Availability
Release 5 and later.
Description
XwcTextPropertyToTextList() return a list of wide-character text strings encoded in the current locale representing the null-separated ele-
ments of the specified XTextProperty structure. The data in text_prop must be format 8.
Multiple elements of the property (for example, the strings in a disjoint text selection) are separated by a null byte. The contents of
the property are not required to be NULL-terminated; any terminating null should not be included in text_prop.nitems.
If insufficient memory is available for the list and its elements, XwcTextPropertyToTextList() returns XNoMemory. If the current locale is
not supported, it returns XLocaleNotSupported. If the encoding field of text_prop is not convertible to the encoding of the current
locale, it returns XConverterNotFound. For supported locales, existence of a converter from COMPOUND_TEXT, STRING, or the encoding of the
current locale is guaranteed although the actual text may contain unconvertible characters. Conversion of other encodings is implementa-
tion-dependent. In all of these error cases, the function does not set any return values.
Otherwise, XwcTextPropertyToTextList() returns the list of NULL-terminated text strings to list_return, and the number of text strings to
count_return.
If the value field of text_prop is not fully convertible to the encoding of the current locale, the functions return the number of uncon-
vertible characters. Each unconvertible character is converted to a string in the current locale that is specific to the current locale.
To obtain the value of this string, use XDefaultString(). If all characters are convertible, XwcTextPropertyToTextList() returns Success.
If the text property contains "invalid codepoints" or bytes that are not valid characters in the encoding of the property, the result is
undefined.
Structures
The XTextProperty structure contains:
typedef struct {
unsigned char *value; /* property data */
Atom encoding; /* type of property */
int format; /* 8, 16, or 32 */
unsigned long nitems; /* number of items in value */
} XTextProperty;
The possible return values of this function are as follows:
#define XNoMemory - 1
#define XLocaleNotSupported - 2
#define XConverterNotFound - 3
See Also
XSetTextProperty(), XStringListToTextProperty(), XDefaultString(), XmbTextListToTextProperty(), XmbTextPropertyToTextList(),
XwcFreeStringList(), XwcTextListToTextProperty().
Xlib - Text Encoding Conversions XwcTextPropertyToTextList()
Check Out this Related Man Page
XmbTextListToTextProperty(3X11) XmbTextListToTextProperty(3X11)
NAME
XmbTextListToTextProperty, XwcTextListToTextProperty, XmbTextPropertyToTextList, XwcTextPropertyToTextList, XwcFreeStringList, XDefault-
String - convert text lists and text property structures
SYNOPSIS
int XmbTextListToTextProperty(display, list, count, style, text_prop_return)
Display *display;
char **list;
int count;
XICCEncodingStyle style;
XTextProperty *text_prop_return;
int XwcTextListToTextProperty(display, list, count, style, text_prop_return)
Display *display;
wchar_t **list;
int count;
XICCEncodingStyle style;
XTextProperty *text_prop_return;
int XmbTextPropertyToTextList(display, text_prop, list_return, count_return)
Display *display;
XTextProperty *text_prop;
char ***list_return;
int *count_return;
int XwcTextPropertyToTextList(display, text_prop, list_return, count_return)
Display *display;
XTextProperty *text_prop;
wchar_t ***list_return;
int *count_return;
void XwcFreeStringList(list)
wchar_t **list;
char *XDefaultString()
ARGUMENTS
Specifies the connection to the X server. Specifies a list of null-terminated character strings. Specifies the number of strings speci-
fied. Specifies the manner in which the property is encoded. Returns the XTextProperty structure. Specifies the XTextProperty structure
to be used. Returns a list of null-terminated character strings. Returns the number of strings. Specifies the list of strings to be
freed.
DESCRIPTION
The XmbTextListToTextProperty and XwcTextListToTextProperty functions set the specified XTextProperty value to a set of null-separated ele-
ments representing the concatenation of the specified list of null-terminated text strings. A final terminating null is stored at the end
of the value field of text_prop_return but is not included in the nitems member.
The functions set the encoding field of text_prop_return to an Atom for the specified display naming the encoding determined by the speci-
fied style and convert the specified text list to this encoding for storage in the text_prop_return value field. If the style XStringStyle
or XCompoundTextStyle is specified, this encoding is "STRING" or "COMPOUND_TEXT", respectively. If the style XTextStyle is specified, this
encoding is the encoding of the current locale. If the style XStdICCTextStyle is specified, this encoding is "STRING" if the text is fully
convertible to STRING, else "COMPOUND_TEXT".
If insufficient memory is available for the new value string, the functions return XNoMemory. If the current locale is not supported, the
functions return XLocaleNotSupported. In both of these error cases, the functions do not set text_prop_return.
To determine if the functions are guaranteed not to return XLocaleNotSupported, use XSupportsLocale.
If the supplied text is not fully convertible to the specified encoding, the functions return the number of unconvertible characters. Each
unconvertible character is converted to an implementation-defined and encoding-specific default string. Otherwise, the functions return
Success. Note that full convertibility to all styles except XStringStyle is guaranteed.
To free the storage for the value field, use XFree.
The XmbTextPropertyToTextList and XwcTextPropertyToTextList functions return a list of text strings in the current locale representing the
null-separated elements of the specified XTextProperty structure. The data in text_prop must be format 8.
Multiple elements of the property (for example, the strings in a disjoint text selection) are separated by a null byte. The contents of the
property are not required to be null-terminated; any terminating null should not be included in text_prop.nitems.
If insufficient memory is available for the list and its elements, XmbTextPropertyToTextList and XwcTextPropertyToTextList return XNoMem-
ory. If the current locale is not supported, the functions return XLocaleNotSupported. Otherwise, if the encoding field of text_prop is not
convertible to the encoding of the current locale, the functions return XConverterNotFound. For supported locales, existence of a con-
verter from COMPOUND_TEXT, STRING or the encoding of the current locale is guaranteed if XSupportsLocale returns True for the current
locale (but the actual text may contain unconvertible characters). Conversion of other encodings is implementation dependent. In all of
these error cases, the functions do not set any return values.
Otherwise, XmbTextPropertyToTextList and XwcTextPropertyToTextList return the list of null-terminated text strings to list_return and the
number of text strings to count_return.
If the value field of text_prop is not fully convertible to the encoding of the current locale, the functions return the number of uncon-
vertible characters. Each unconvertible character is converted to a string in the current locale that is specific to the current locale.
To obtain the value of this string, use XDefaultString. Otherwise, XmbTextPropertyToTextList and XwcTextPropertyToTextList return Success.
To free the storage for the list and its contents returned by XmbTextPropertyToTextList, use XFreeStringList. To free the storage for the
list and its contents returned by XwcTextPropertyToTextList, use XwcFreeStringList.
The XwcFreeStringList function frees memory allocated by XwcTextPropertyToTextList.
The XDefaultString function returns the default string used by Xlib for text conversion (for example, in XmbTextPropertyToTextList). The
default string is the string in the current locale that is output when an unconvertible character is found during text conversion. If the
string returned by XDefaultString is the empty string (""), no character is output in the converted text. XDefaultString does not return
NULL.
The string returned by XDefaultString is independent of the default string for text drawing; see XCreateFontSet to obtain the default
string for an XFontSet.
The behavior when an invalid codepoint is supplied to any Xlib function is undefined.
The returned string is null-terminated. It is owned by Xlib and should not be modified or freed by the client. It may be freed after the
current locale is changed. Until freed, it will not be modified by Xlib.
STRUCTURES
The XTextProperty structure contains:
typedef struct {
unsigned char *value; /* property data */
Atom encoding; /* type of property */
int format; /* 8, 16, or 32 */
unsigned long nitems; /* number of items in value */ } XTextProperty;
The XICCEncodingStyle structure contains:
#define XNoMemory -1
#define XLocaleNotSupported -2
#define XConverterNotFound -3
typedef enum {
XStringStyle, /* STRING */
XCompoundTextStyle, /* COMPOUND_TEXT */
XTextStyle, /* text in owner's encoding
(current locale) */
XStdICCTextStyle /* STRING, else COMPOUND_TEXT */ } XICCEncodingStyle;
RESTRICTIONS
STRING conversion (XStringStyle) is not supported for interclient communication under the ja_JP.SJIS locale. This is because the X Library
assumes 7-bit STRING data to be in ISO8859-1:GL format whereas the ja_JP.SJIS locale assumes the data to be in JISX0201.1976-0:GL format.
SEE ALSO
XSetTextProperty(3X11), XStringListToTextProperty(3X11)
Xlib -- C Language X Interface
XmbTextListToTextProperty(3X11)