AttrBox SUB

 Action
 Changes the color of the characters within a box.


 Syntax
 AttrBox row1%, col1%, row2%, col 2%, attr%

 Remarks
 The AttrBox procedure uses the following arguments.

 row1%, col1%
 ------------
 An integer pair that specifies absolute screen row and column coordinates.

 row2%, col2%
 ------------
 An integer pair that specifies the lower-right corner coordinates of an
 area.

 attr%
 -----
 An integer that defines the color and intensity attributes for your
 particular display adapter. The number is derived by adding the product of
 16 times the value of the background color (0 - 7) to the value of the
 foreground color (0 - 15). See the entries for the SCREEN and PALETTE
 statement for more information.

 AttrBox changes the color attribute of characters within a box, described by
 column and row coordinates, to the attribute contained in the argument
 attr%. The characters within the described area are unaffected, except for
 changes in color.
 AttrBox is used in MENU.BAS to provide shadows for the menus, and in
 WINDOW.BAS to draw the shadow on newly displayed windows.


 See Also.  MenuDo, WindowShadowSave