XmTextGetSubstring(3X)
XmTextGetSubstring --A Text function that retrieves a copy of a portion of the internal text buffer
As shipped in IRIX 6.5.15. Unchanged since IRIX 6.5.
NAME XmTextGetSubstring --A Text function that retrieves a copy of a portion of the internal text buffer SYNOPSIS #include <Xm/Text.h> int XmTextGetSubstring (widget, start, num_chars, buffer_size, buffer) Widget widget; XmTextPositionstart; int num_chars; int buffer_size; char *buffer; VERSION This page documents version 1.2 of the Motif library. DESCRIPTION XmTextGetSubstring retrieves a copy of a portion of the internal text buffer of a Text widget. The function copies a specified number of charac- ters from a given start position in the internal text buffer into a buffer provided by the application. A NULL terminator is placed at the end of the copied data. The size of the required buffer depends on the maximum number of bytes per character (MB_CUR_MAX) for the current locale. MB_CUR_MAX is a macro de- fined in stdlib.h. The buffer should be large enough to contain the sub- string to be copied and a NULL terminator. Use the following equation to calculate the size of buffer the application should provide: buffer_size = (num_chars * MB_CUR_MAX) + 1 widget Specifies the Text widget ID. start Specifies the beginning character position from which the data will be retrieved. This is an integer number of characters from the beginning of the text buffer. The first character position is 0. num_chars Specifies the number of characters to be copied into the provided buffer. buffer_size Specifies the size of the supplied buffer in bytes. This size should account for a NULL terminator. buffer Specifies the character buffer into which the internal text buffer will be copied. For a complete definition of Text and its associated resources, see Xm- Text(3X). RETURN VALUE XmCOPY_SUCCEEDED The function was successful. XmCOPY_FAILED The function failed because it was unable to copy the specified number of characters into the buffer pro- vided. The buffer size may be insufficient. The con- tents of buffer are undefined. XmCOPY_TRUNCATED The requested number of characters extended beyond the internal buffer. The function copied characters be- tween start and the end of the widget's buffer and ter- minated the string with a NULL terminator; fewer than num_chars characters were copied. RELATED INFORMATION XmText(3X) and XmTextGetSubstringWcs(3X). XmTextGetSubstring(3X)