Synopsis:

        term_scroll_area(row,column,width,height)

Arguments:

    row        -  The top left row of the scroll area

    column   -  The top left column of the scroll area

    width      -  The width of the scroll area

    height     -  The height of the scroll area

Description:   This function defines the scrolling area of the Application Terminal where strings are written from calls to term_write(), applog(), errlor() etc.    By default the entire Application Terminal window is the scrolling area until a call is made to this function to modify it.

Return Value:  

Returns 0 or -1 if an invalid scroll area is defined.