If the SCROLLABLE attribute is TRUE, the frame or dialog box can be bigger than the display space allotted to it (that is, it is scrollable). If SCROLLABLE is FALSE, the frame or dialog box must fit within the allotted display space; it cannot be made to scroll. The default value is TRUE. The VIRTUAL-HEIGHT-CHARS, VIRTUAL-HEIGHT-CHARS, VIRTUAL-HEIGHT-CHARS, and VIRTUAL-HEIGHT-CHARS attributes control the virtual or maximum size of a frame or dialog box.
