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**PageUp, PROTECTED**

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The **PageUp **method scrolls the display up one "page." A page is the number of lines displayed in the ASCIIViewerClass object's LIST control.

**Example:**

**MyViewerClass.TakeEvent PROCEDURE(UNSIGNED EventNo)**

**  CODE**

**  IF FIELD()=SELF.ListBox**

**    CASE EventNo**

**    OF EVENT:Scrollup**

**      SELF.SetLineRelative(-1)**

**    OF EVENT:ScrollDown**

**      SELF.SetLineRelative(1)**

**    OF EVENT:PageUp**

**      SELF.PageUp**

**    OF EVENT:PageDown**

**      SELF.PageDown**

**    END**

**  END**