WINBIG L T W H Title

  Defines a window at Left(L), Top(T), Width(W), Height(H)
  Title is a string that will be shown in the TitleBar.

  ex:  WinBig 10 10 200 100 "My first window!"

  - If Left = -1  the window is centered on the width of the screen

  - If Top  = -1  the window is centered on the height of the screen.
  - If Top  = -10 the window top will be just under the screen
                  title bar.

  If Width is negative, then the width of the window will be the size
  of the screen it opens on, minus this negative number. Same for the
  Height.

  Example : WinBig -1 -1 -1 -10 "My Window"
  This is a window centered horizontally and vertically on the screen, 
  of a size -> Width = ScreenWidth-1, and Height = ScreenHeight-10.

  If Width or Height are more than the screen size, they are reduced
  so that the window fits in the screen.

  Windows always have the following 4 gadgets, unless told otherwise
  (by the WinType command) :

  - The close button - Closes the window
  - The Drag Bar     - This consists of all parts of the window's Title 
                       bar not taken up by other gadgets.
  - The zoom button  - Zips the window to the size defined by
                       the WinSmall command, or, if this command
                       is not defined to size 100, 11 at 0, 11.
  - The Depth arrangement gadget

  Window Types can be changed with the  WinType  command, with which
  you can define which of the above gadgets you want and make the 
  window borderless and/or backdrop and/or resizable.

  All windows have a number of  Default Shortcuts