XmTextGetSelectionPosition accesses the left and right position of
the primary selection in the text buffer of the Text widget.
widget
Specifies the Text widget ID
left
Specifies the pointer in which the position of the left boundary of the
primary selection is returned. This is an integer number of characters
from the beginning of the buffer. The first character position is 0 (zero).
right
Specifies the pointer in which the position of the right boundary of the
primary selection is returned. This is an integer number of characters
from the beginning of the buffer. The first character position is 0 (zero).
For a complete definition of Text and its associated resources, see
XmText(3).
RETURN
This function returns True if the widget owns the primary selection;
otherwise, it returns False.