XmTextGetTopCharacter - A Text function that accesses the position of the first character displayed
XmTextPosition XmTextGetTopCharacter (widget)
XmTextGetTopCharacter accesses the position of the text at the top of the Text widget. Specifies the Text widget ID
For a complete definition of Text and its associated resources, see
Returns an XmTextPosition value that indicates the state of the XmNtopCharacter resource. This is an integer
number of characters from the beginning of the text buffer. The first character
position is 0.