XmTextReplaceWcs replaces part of the wide character
string in the Text widget. The character positions begin at
zero and are numbered sequentially from the beginning of the text.
An example text replacement would be to replace
the second and third characters in the text string. To accomplish this,
the from_pos parameter must be 1 and the to_pos
parameter must be 3. To
insert a string after the fourth character, both the
from_pos and to_pos parameters must be 4.
This routine calls the widgets XmNvalueChangedCallback and
verification callbacks, either XmNmodifyVerifyCallback or
XmNmodifyVerifyCallbackWcs, or both. If both verification
callback lists are registered, the procedures of the
XmNmodifyVerifyCallback list are executed first and the resulting
data is passed to the XmNmodifyVerifyCallbackWcs callbacks.
This routine calls the widgets XmNmotionVerifyCallback callback
when from_pos is less than or equal to the cursor position.
For a complete definition of Text and its associated resources, see
Specifies the Text widget ID
Specifies the start position of the text to be replaced
Specifies the end position of the text to be replaced
Specifies the wide character string value to be added to the Text widget