398 lines
9.3 KiB
Plaintext
398 lines
9.3 KiB
Plaintext
'\" t
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.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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'\" t
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.TH XmbTextListToTextProperty 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
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.SH NAME
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XmbTextListToTextProperty, XwcTextListToTextProperty, XmbTextPropertyToTextList, XwcTextPropertyToTextList, XwcFreeStringList, XDefaultString \- convert text lists and text property structures
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.SH SYNTAX
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int XmbTextListToTextProperty\^(\^\fIdisplay\fP\^, \fIlist\fP\^, \fIcount\fP\^, \fIstyle\fP\^, \fItext_prop_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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char **\fIlist\fP\^;
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.br
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int \fIcount\fP\^;
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.br
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XICCEncodingStyle \fIstyle\fP\^;
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.br
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XTextProperty *\fItext_prop_return\fP\^;
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.LP
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int XwcTextListToTextProperty\^(\^\fIdisplay\fP\^, \fIlist\fP\^, \fIcount\fP\^, \fIstyle\fP\^, \fItext_prop_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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wchar_t **\fIlist\fP\^;
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.br
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int \fIcount\fP\^;
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.br
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XICCEncodingStyle \fIstyle\fP\^;
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.br
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XTextProperty *\fItext_prop_return\fP\^;
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.LP
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int XmbTextPropertyToTextList\^(\^\fIdisplay\fP\^, \fItext_prop\fP\^, \fIlist_return\fP\^, \fIcount_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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XTextProperty *\fItext_prop\fP\^;
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.br
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char ***\fIlist_return\fP\^;
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.br
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int *\fIcount_return\fP\^;
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.LP
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int XwcTextPropertyToTextList\^(\^\fIdisplay\fP\^, \fItext_prop\fP\^, \fIlist_return\fP\^, \fIcount_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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XTextProperty *\fItext_prop\fP\^;
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.br
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wchar_t ***\fIlist_return\fP\^;
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.br
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int *\fIcount_return\fP\^;
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.LP
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void XwcFreeStringList\^(\^\fIlist\fP\^)
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.br
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wchar_t **\fIlist\fP\^;
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.LP
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char *XDefaultString\^(\|)
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.SH ARGUMENTS
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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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.IP \fIlist\fP 1i
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Specifies a list of null-terminated character strings.
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.IP \fIcount\fP 1i
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Specifies the number of strings specified.
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.IP \fIstyle\fP 1i
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Specifies the manner in which the property is encoded.
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.IP \fItext_prop_return\fP 1i
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Returns the
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.ZN XTextProperty
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structure.
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.IP \fItext_prop\fP 1i
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Specifies the
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.ZN XTextProperty
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structure to be used.
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.IP \fIlist_return\fP 1i
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Returns a list of null-terminated character strings.
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.ds Cn strings
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.IP \fIcount_return\fP 1i
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Returns the number of \*(Cn.
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.IP \fIlist\fP 1i
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Specifies the list of strings to be freed.
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.SH DESCRIPTION
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The
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.ZN XmbTextListToTextProperty
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and
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.ZN XwcTextListToTextProperty
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functions set the specified
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.ZN XTextProperty
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value to a set of null-separated elements representing the concatenation
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of the specified list of null-terminated text strings.
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A final terminating null is stored at the end of the value field
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of text_prop_return but is not included in the nitems member.
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.LP
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The functions set the encoding field of text_prop_return to an Atom
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for the specified display
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naming the encoding determined by the specified style,
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and convert the specified text list to this encoding for storage in
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the text_prop_return value field.
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If the style
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.ZN XStringStyle
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or
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.ZN XCompoundTextStyle
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is specified,
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this encoding is ``STRING'' or ``COMPOUND_TEXT'', respectively.
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If the style
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.ZN XTextStyle
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is specified,
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this encoding is the encoding of the current locale.
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If the style
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.ZN XStdICCTextStyle
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is specified,
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this encoding is ``STRING'' if the text is fully convertible to STRING,
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else ``COMPOUND_TEXT''.
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.LP
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If insufficient memory is available for the new value string,
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the functions return
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.ZN XNoMemory .
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If the current locale is not supported,
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the functions return
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.ZN XLocaleNotSupported .
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In both of these error cases,
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the functions do not set text_prop_return.
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.LP
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To determine if the functions are guaranteed not to return
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.ZN XLocaleNotSupported ,
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use
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.ZN XSupportsLocale .
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.LP
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If the supplied text is not fully convertible to the specified encoding,
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the functions return the number of unconvertible characters.
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Each unconvertible character is converted to an implementation-defined and
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encoding-specific default string.
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Otherwise, the functions return
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.ZN Success .
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Note that full convertibility to all styles except
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.ZN XStringStyle
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is guaranteed.
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.LP
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To free the storage for the value field, use
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.ZN XFree .
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.LP
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The
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.ZN XmbTextPropertyToTextList
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and
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.ZN XwcTextPropertyToTextList
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functions return a list of text strings in the current locale representing the
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null-separated elements of the specified
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.ZN XTextProperty
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structure.
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The data in text_prop must be format 8.
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.LP
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Multiple elements of the property (for example, the strings in a disjoint
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text selection) are separated by a null byte.
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The contents of the property are not required to be null-terminated;
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any terminating null should not be included in text_prop.nitems.
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.LP
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If insufficient memory is available for the list and its elements,
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.ZN XmbTextPropertyToTextList
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and
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.ZN XwcTextPropertyToTextList
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return
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.ZN XNoMemory .
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If the current locale is not supported,
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the functions return
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.ZN XLocaleNotSupported .
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Otherwise, if the encoding field of text_prop is not convertible
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to the encoding of the current locale,
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the functions return
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.ZN XConverterNotFound .
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For supported locales,
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existence of a converter from COMPOUND_TEXT, STRING,
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or the encoding of the current locale is guaranteed if
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.ZN XSupportsLocale
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returns
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.ZN True
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for the current locale (but the actual text may contain unconvertible characters.)
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Conversion of other encodings is implementation-dependent.
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In all of these error cases,
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the functions do not set any return values.
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.LP
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Otherwise,
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.ZN XmbTextPropertyToTextList
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and
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.ZN XwcTextPropertyToTextList
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return the list of null-terminated text strings to list_return,
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and the number of text strings to count_return.
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.LP
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If the value field of text_prop is not fully convertible to the encoding of
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the current locale,
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the functions return the number of unconvertible characters.
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Each unconvertible character is converted to a string in the
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current locale that is specific to the current locale.
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To obtain the value of this string,
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use
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.ZN XDefaultString .
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Otherwise,
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.ZN XmbTextPropertyToTextList
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and
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.ZN XwcTextPropertyToTextList
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return
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.ZN Success .
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.LP
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To free the storage for the list and its contents returned by
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.ZN XmbTextPropertyToTextList ,
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use
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.ZN XFreeStringList .
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To free the storage for the list and its contents returned by
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.ZN XwcTextPropertyToTextList ,
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use
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.ZN XwcFreeStringList .
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.LP
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The
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.ZN XwcFreeStringList
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function frees memory allocated by
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.ZN XwcTextPropertyToTextList .
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.LP
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The
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.ZN XDefaultString
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function returns the default string used by Xlib for text conversion
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(for example, in
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.ZN XmbTextListToTextProperty ).
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The default string is the string in the current locale which is output
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when an unconvertible character is found during text conversion.
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If the string returned by
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.ZN XDefaultString
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is the empty string (""),
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no character is output in the converted text.
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.ZN XDefaultString
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does not return NULL.
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.LP
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The string returned by
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.ZN XDefaultString
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is independent of the default string for text drawing;
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see
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.ZN XCreateFontSet
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to obtain the default string for an
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.ZN XFontSet .
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.LP
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The behavior when an invalid codepoint is supplied to any Xlib function is
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undefined.
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.LP
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The returned string is null-terminated.
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It is owned by Xlib and should not be modified or freed by the client.
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It may be freed after the current locale is changed.
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Until freed, it will not be modified by Xlib.
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.SH STRUCTURES
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The
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.ZN XTextProperty
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structure contains:
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.LP
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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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unsigned char *value; /* property data */
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Atom encoding; /* type of property */
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int format; /* 8, 16, or 32 */
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unsigned long nitems; /* number of items in value */
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} XTextProperty;
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.De
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.LP
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The
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.ZN XICCEncodingStyle
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structure contains:
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.LP
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.TS
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lw(.5i) lw(2i) lw(2.5i).
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T{
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#define
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T} T{
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.ZN XNoMemory
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T} T{
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\-1
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T}
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T{
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#define
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T} T{
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.ZN XLocaleNotSupported
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T} T{
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\-2
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T}
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T{
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#define
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T} T{
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.ZN XConverterNotFound
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T} T{
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\-3
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T}
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.TE
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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 enum {
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XStringStyle, /* STRING */
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XCompoundTextStyle, /* COMPOUND_TEXT */
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XTextStyle, /* text in owner's encoding (current locale) */
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XStdICCTextStyle /* STRING, else COMPOUND_TEXT */
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} XICCEncodingStyle;
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.De
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.SH "SEE ALSO"
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XSetTextProperty(3X11),
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XStringListToTextProperty(3X11)
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.br
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\fI\*(xL\fP
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