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CentOS 7.0 - man page for xmtextgettopcharacter (centos section 3)

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XmTextGetTopCharacter(library call)			      XmTextGetTopCharacter(library call)

NAME
       XmTextGetTopCharacter -- A Text function that accesses the position of the first character
       displayed

SYNOPSIS
       #include <Xm/Text.h>
       XmTextPosition XmTextGetTopCharacter(
       Widget widget);

DESCRIPTION
       XmTextGetTopCharacter accesses the position of the text at the top of the Text widget.  If
       there  is  no text in the Text widget (in other words, XmNvalue contains an empty string),
       then XmTextGetTopCharacter returns 0.

       Suppose that the XmNtopCharacter resource has been set to a value greater than the  number
       of characters in the text widget. In this case, XmTextGetTopCharacter returns an XmTextPo-
       sition value identifying the position of the first character in the last line of text in a
       multiline case; otherwise, it identifies the position of the last character in the line.

       widget	 Specifies the Text widget ID

       For a complete definition of Text and its associated resources, see XmText(3).

RETURN
       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 (zero).

RELATED
       XmText(3).

							      XmTextGetTopCharacter(library call)
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