CSETSNOW()
 Helps prevent snow on the screen
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 Syntax

     CSETSNOW([<lNewSwitch>]) --> lOldSwitch

     *  This function is retained in CA-Clipper Tools for compatibility
        purposes.  Use the CA-Clipper NOSNOW() function to develop future
        applications.

 Argument

     <lNewSwitch>   Designates the new status for "Snow Prevent".  A .T.
     signifies on; .F. means off.  The default value for Snow Prevent is off
     (.F.).

 Returns

     CSETSNOW() returns the current setting, when no parameter is designated;
     otherwise, it returns the previous setting.

 Description

     Snow tends be is especially bad in CGA card screen output.  To prevent
     it, set the CSETSNOW switch.

     Use the CA-Clipper NOSNOW() function for new applications.

 Note

     .  CSETALL() does not acknowledge the CSETSNOW() setting.

 Examples

     .  Output with Snow Prevent on:

        CSETSNOW(.T.)                   // Returns old setting

     .  Acknowledge existing hardware:

        CSETSNOW(ISCGA())               //  Snow prevent if CGA card