NAME XmbTextListToTextProperty, XwcTextListToTextProperty, Xutf8TextListTo‐ TextProperty, XmbTextPropertyToTextList, XwcTextPropertyToTextList,
Xutf8TextPropertyToTextList, XwcFreeStringList, XDefaultString - con‐ vert text lists and text property structures SYNTAX int XmbTextListToTextProperty(Display *display, char **list, int count, XICCEncodingStyle style, XTextProperty *textpropreturn); int XwcTextListToTextProperty(Display *display, wchart **list, int count, XICCEncodingStyle style, XTextProperty *textpropreturn); int Xutf8TextListToTextProperty(Display *display, char **list, int count, XICCEncodingStyle style, XTextProperty *textpropreturn); int XmbTextPropertyToTextList(Display *display, XTextProperty *textprop, char ***listreturn, int *countreturn); int XwcTextPropertyToTextList(Display *display, XTextProperty *textprop, wchart ***listreturn, int *countreturn); int Xutf8TextPropertyToTextList(Display *display, XTextProperty *textprop, char ***listreturn, int *countreturn); void XwcFreeStringList(wchart **list); char *XDefaultString(void) ARGUMENTS display Specifies the connection to the X server.
list Specifies a list of null-terminated character strings. count Specifies the number of strings specified. style Specifies the manner in which the property is encoded. textpropreturn Returns the XTextProperty structure. textprop Specifies the XTextProperty structure to be used. listreturn
Returns a list of null-terminated character strings. countreturn Returns the number of strings. list Specifies the list of strings to be freed. DESCRIPTION The XmbTextListToTextProperty, XwcTextListToTextProperty and Xutf8TextListToTextProperty functions set the specified XTextProperty
value to a set of null-separated elements representing the concatena‐
tion of the specified list of null-terminated text strings. The input text strings must be given in the current locale encoding (for Xmb‐
TextListToTextProperty and XwcTextListToTextProperty), or in UTF-8 encoding (for Xutf8TextListToTextProperty). The functions set the encoding field of textpropreturn to an Atom for the specified display naming the encoding determined by the specified style and convert the specified text list to this encoding for storage in the textpropreturn value field. If the style XStringStyle or XCompoundTextStyle is specified, this encoding is ``STRING'' or ``COM‐ POUNDTEXT'', respectively. If the style XUTF8StringStyle is speci‐ fied, this encoding is ``UTF8STRING''. (This is an extension intro‐ duced by The XFree86 Project, Inc. in their 4.0.2 release. Its presence is indicated by the macro XHAVEUTF8STRING.) 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 ``COMPOUNDTEXT''. A final terminating null byte is stored at the end of the value field of textpropreturn but is not included in the nitems member. If insufficient memory is available for the new value string, the func‐ tions return XNoMemory. If the current locale is not supported, the functions return XLocaleNotSupported. In both of these error cases, the functions do not set textpropreturn. To determine if the functions are guaranteed not to return XLocaleNot‐ Supported, use XSupportsLocale. If the supplied text is not fully convertible to the specified encod‐ ing, 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 Suc‐ cess. Note that full convertibility to all styles except XStringStyle is guaranteed. To free the storage for the value field, use XFree. The XmbTextPropertyToTextList, XwcTextPropertyToTextList and Xutf8TextPropertyToTextList functions return a list of text strings
representing the null-separated elements of the specified XTextProperty structure. The returned strings are encoded using the current locale encoding (for XmbTextPropertyToTextList and XwcTextPropertyToTextList)
or in UTF-8 (for Xutf8TextPropertyToTextList). The data in textprop must be format 8. Multiple elements of the property (for example, the strings in a dis‐ joint 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 textprop.nitems. If insufficient memory is available for the list and its elements, Xmb‐ TextPropertyToTextList, XwcTextPropertyToTextList and Xutf8TextProper‐ tyToTextList return XNoMemory. If the current locale is not supported, the functions return XLocaleNotSupported. Otherwise, if the encoding field of textprop is not convertible to the encoding of the current locale, the functions return XConverterNotFound. For supported locales, existence of a converter from COMPOUNDTEXT, STRING, UTF8STRING 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 encod‐
ings is implementation-dependent. In all of these error cases, the functions do not set any return values. Otherwise, XmbTextPropertyToTextList, XwcTextPropertyToTextList and
Xutf8TextPropertyToTextList return the list of null-terminated text strings to listreturn and the number of text strings to countreturn. If the value field of textprop is not fully convertible to the encod‐ ing 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, XwcTextPropertyToTextList and Xutf8TextProp‐ ertyToTextList return Success. To free the storage for the list and its contents returned by Xmb‐ TextPropertyToTextList or Xutf8TextPropertyToTextList, use XFreeStringList. To free the storage for the list and its contents returned by XwcTextPropertyToTextList, use XwcFreeStringList. The XwcFreeStringList function frees memory allocated by XwcTextProper‐ tyToTextList. 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 charac‐ ter 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 cur‐ rent locale is changed. Until freed, it will not be modified by Xlib. The functions Xutf8TextListToTextProperty and Xutf8TextPropertyTo‐ TextList are extensions introduced by The XFree86 Project, Inc. in their 4.0.2 release. Their presence is indicated by the macro XHAVEUTF8STRING. 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, /* COMPOUNDTEXT */ XTextStyle, /* text in owner's encoding (current locale) */ XStdICCTextStyle, /* STRING, else COMPOUNDTEXT */ XUTF8StringStyle /* UTF8STRING */ } XICCEncodingStyle; SEE ALSO XSetTextProperty(3), XStringListToTextProperty(3)
Xlib - C Language X Interface X Version 11 libX11 1.6.5 XmbTextListToTextProperty(3)