XmTextXYToPos - A Text function that accesses the character position nearest an x and y position
XmTextPosition XmTextXYToPos (widget, x, y)
XmTextXYToPos accesses the character position nearest to the specified x and y position, relative to the upper left corner of the Text widget. Specifies the Text widget ID Specifies the x position, relative to the upper left corner of the widget. Specifies the y position, relative to the upper left corner of the widget.
For a complete definition of Text and its associated resources, see
Returns the character position in the text nearest the x and y position specified. This is an
integer number of characters from the beginning of the buffer. The first
character position is 0.