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 FT_DISPMSG()
 Display a message and optionally waits for a keypress
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 Syntax

      FT_DISPMSG( <aMessageArray>, [ <cKey2Check> ],
                  [ <nTopBoxRow> ], [ <nLeftBoxColumn> ],
                  [ <cBoxType> ], [ <lShadow> ] ) -> lKeyMatch

 Arguments

     <aMessageArray> is a multidimensional array of messages to be
     displayed and the color attributes for each message.

     The first dimension of the array contains one or more elements,
     each representing one line in the message box, up to the maximum
     number of rows on the screen.

     The second dimension of the array contains a color attribute for
     the corresponding element in dimension one, plus one additional
     element for the color of the box border.  Dimension two will
     always contain one more element than dimension one.  If an
     attribute is omitted, the last color selected will be used.

     <Key2Check> is a character string of one or more keys to check
     for.  If omitted, the message is displayed and control is returned
     to the calling procedure.  If one character is specified,
     FT_DISPMSG() waits for one keypress, restores the screen and
     returns.  If multiple characters are specified, FT_DISPMSG()
     remains in a loop until one of the specified keys has been
     pressed, then restores the screen and returns.

     <nTopBoxRow> is the upper row for the message box.  If omitted, the
     box is centered vertically.

     <nLeftBoxColumn> is the leftmost column for the box.  If omitted, the
     box is centered horizontally.

     <cBoxType> is a string of characters or a variable for the box
     border.  See the @...BOX command.  If omitted, a double box is
     drawn.

     <lShadow> is a logical variable.  If true (.T.) or omitted, it
     uses FT_SHADOW() to add a transparent shadow to the box.  If
     false (.F.), the box is drawn without the shadow.

 Returns

     If <Key2Check> is not specified, FT_DISPMSG() will return false
     (.F.).

     If <Key2Check> is a one-character string, FT_DISPMSG() will return
     true (.T.) if the user presses that key, or false (.F.) if any
     other key is pressed.

     If <Key2Check> consists of multiple characters, it will lock the
     user in a loop until one of those keys are pressed and return the
     INKEY() value of the keypress.

 Description

     FT_DISPMSG() is a multi-purpose pop-up for user messages.
     Multiple lines may be displayed, each with a different attribute.
     The box will be automatically centered on the screen, or the row
     and/or column can be specified by the programmer.  It also centers
     each line of the message within the box.

 Examples

     The following example displays a simple two-line message
     and returns immediately to the calling routine.

        FT_DISPMSG( { { "Printing Report"                    , ;
                        "Press [ESC] To Interrupt" }         , ;
                      { "W+/B*", "W/B", "GR+/B" } } )

     The next example displays a message and waits for a key press.

        FT_DISPMSG( { { "Press [D] To Confirm Deletion"      , ;
                        "Or Any Other Key To Abort" }        , ;
                      { "W+/B", "W+/B", "GR+/B" } }          , ;
                      "D" )

     The next example displays a one-line message centered on row 5
     and returns to the calling procedure.

        FT_DISPMSG( { { "Please Do Not Interrupt" }   , ;
                      { "W+/B", "GR+/B" } }          , ;
                      , 5, )

 Source: DISPMSG.PRG

 Author: Paul Ferrara