XmTextShowPosition forces text at the specified position to be displayed. If the
XmNautoShowCursorPosition resource is True, the application should also set the insert cursor to this
position.
widget Specifies the Text widget ID
position Specifies the character position to be displayed. This is an integer number of characters from
the beginning of the text buffer. The first character position is 0 (zero).
If a navigator exists, this function uses the XmQTnavigator trait to update the horizontal navigator's
value.
For a complete definition of Text and its associated resources, see XmText(3).