Formats next page(s) of document
function FormatNextPage(AMaxHeight: Integer): Boolean;
Call this method after Init several times, while it returns True.
AMaxHeight – page height, pixels; page width is specified as a parameter of Init.
Sometimes, this method formats more than one page.
This method is fast. The most time consuming method is Init.
▪True if not all pages were formatted;
▪False, if formatting is complete.