VESAMode()

         Makes active the VESA video mode

    Syntax:

         VESAMode( [nMode] ) -> nOldMode

         nMode : The VESA video mode to make active from the table:

                        640 x  400 x 256 colors Graph  ->  256
                        640 x  480 x 256 colors Graph  ->  257
                        800 x  600 x  16 colors Graph  ->  258
                        800 x  600 x 256 colors Graph  ->  259
                       1024 x  768 x  16 colors Graph  ->  260
                       1024 x  768 x 256 colors Graph  ->  261
                       1280 x 1024 x  16 colors Graph  ->  262
                       1280 x 1024 x 256 colors Graph  ->  263
                         80 x   60 x  16 colors Texto  ->  264
                        132 x   25 x  16 colors Texto  ->  265
                        132 x   43 x  16 colors Texto  ->  266
                        132 x   50 x  16 colors Texto  ->  267
                        132 x   60 x  16 colors Texto  ->  268

    Description:

         It makes active video mode via VESA driver. The advantage of using
         this driver is that you can forget about programming different SVGA
         cards as the VESA driver will make them all behave in the same way.

         It already exists in most BBS the driver < Universal VESA > that
         can be installed over a great number of chip sets. Nevertheless,
         It is recommended to use the specific VESA drivers for each card
         as these ones are more optimized.

    Return:

         The last video mode.

    Example:

         ? VESAMode( 257 )  // activo mi SVGA a 640x480x256 colores