#import "Controller.h" 

@implementation  Controller

- ( IBAction )pushButton:( id )sender
{

NSGraphicsContext *gCon = [NSGraphicsContext graphicsContextWithWindow:[sender window]];

switch  ([gCon imageInterpolation]){

case  NSImageInterpolationDefault:
NSLog( @"NSImageInterpolationDefault" );
break ;
case  NSImageInterpolationNone:
NSLog( @"NSImageInterpolationNone" );
break ;
case  NSImageInterpolationLow:
NSLog( @"NSImageInterpolationLow" );
break ;
case  NSImageInterpolationHigh:
NSLog( @"NSImageInterpolationHigh" );
break ;
}

}


@end