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NeXT Education Software Sampler 1992 Fall
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NeXT Education Software Sampler 1992 Fall.iso
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ComputerScience
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MethodsInAction
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MethodsInAction.app
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GrayScale.m
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1992-08-19
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/* GrayScale.m Jeff Froyd. */
#import "GrayScale.h"
#import <appkit/Slider.h>
#import <dpsclient/wraps.h>
@implementation GrayScale
double currentGray;
-setDoubleValue:(double)newGrayValue;
{
currentGray = newGrayValue;
[self display];
return self;
}
-drawSelf:(NXRect *)r:(int)c
{
PSsetgray(currentGray);
NXRectFill(r);
PSsetgray(NX_BLACK);
NXFrameRect(r);
return self;
}
@end