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 _gtIsColor()
 Determine if the current computer has color capability
------------------------------------------------------------------------------
 C Prototype

     #include "gt.api"
     BOOL _gtIsColor(void)

 Returns

     _gtIsColor() returns TRUE (1) if a color screen is detected; otherwise,
     the function returns FALSE (0).

 Description

     _gtIsColor() lets you make decisions about the type of screen attributes
     to assign (color or monochrome) by giving you information about the type
     of screen display being used.  Note that some monochrome adapters with
     graphics capability return TRUE (1).

 Examples

     .  This example uses _gtIsColor() in an if decision block to
        display the statement "Color system" on color systems only:

        #include "gt.api"
        .
        .
        .
           if ( _gtIsColor() )
           {
              _gtWriteAt( 0, 0, "Color system",  12 );
           }
        .
        .
        .

 Files:  Library is CLIPPER.LIB, header file is Gt.api.