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Man Pages
XmTextFieldGetSubstringWcs(3) FreeBSD Library Functions Manual XmTextFieldGetSubstringWcs(3)

XmTextFieldGetSubstringWcs — A TextField function that retrieves a portion of a wide character internal text buffer

#include <Xm/TextF.h>
int XmTextFieldGetSubstringWcs(
Widget widget,
XmTextPosition start,
int num_chars,
int buffer_size,
wchar_t *buffer);

XmTextFieldGetSubstringWcs retrieves a copy of a portion of the internal text buffer of a TextField widget that is stored in a wide character format. The function copies a specified number of characters 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.
widget
Specifies the TextField 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 (zero).
num_chars
Specifies the number of wchar_t characters to be copied into the provided buffer.
buffer_size
Specifies the size of the supplied buffer as a number of wchar_t storage locations. The minimum size is num_chars + 1.
buffer
Specifies the wide character buffer into which the internal text buffer will be copied.
For a complete definition of TextField and its associated resources, see XmTextField(3).

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 provided. The buffer size may be insufficient. The contents of buffer are undefined.
XmCOPY_TRUNCATED
The requested number of characters extended beyond the internal buffer. The function copied characters to the end of the buffer and terminated the string with a NULL terminator; fewer than num_chars characters were copied.

XmTextField(3) and XmTextFieldGetSubstring(3).

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