XmTextFieldXYToPos - A TextField function that accesses the character position nearest an x and y position
XmTextPosition XmTextFieldXYToPos (widget, x, y)
XmTextFieldXYToPos accesses the character position nearest to the specified x and y position, relative to the upper left corner of the TextField widget. Specifies the TextField 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 TextField and its associated resources,
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.