problem in editor

i m using editor in which the problem is, the last line of the text is half displayed(partly visible).
i used the following code to construct my editor.
iEditor->ConstructL(this, KNumberOfLines, KTextLimit,
CEikEdwin::EInclusiveSizeFixed,
EGulFontControlAll, EGulNoSymbolFonts );
i think there will be CEikEdwin 's enum flag will be used bt cant make it possible.
how can i make my editor in such a way that my last line will be shown completely.