XmTextInsertWcs inserts a wide character string into
the Text widget at a specified location. The character
positions begin at 0 (zero) and are numbered sequentially from
the beginning of the text. For example, to insert a string
after the fourth character, the position parameter
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.
If the XmNcursorPosition resource is greater than or is the same value as
position, the XmNmotionVerifyCallback is called.
Note that, if value is a null string, no callbacks will be
generated, since no modifications will have been made.
For a complete definition of Text and its associated resources, see
Specifies the Text widget ID
Specifies the position in the text string where the new character string is
to be inserted
Specifies the wide character string value to be added to the Text widget