ShowStr ( nRow, nColumn, cText, nColor ) -> .t.

   Writes cText in nColor at position nRow, nColumn into VideoMemory
   If nColor is not passed, the string will be written without attributes
   ShowStr() can be used with the mouse turned on.


   PARAMETERS:

   nRow      sure, the row again
   nColumn   right, the Column !
   cText     again the TextString
   nColor    and the Clipper ColorCode 0 to 255 (optional)

   EXAMPLE:

            ShowStr ( 11, 27, 'This is your price: ')