Forked from @vigorouscoding 's original and modernized. NSImageView subclass to get the filename of the dropped image and to disable deleting and cutting the image. The class sends a "KSImageDroppedNotification" with the image filename in the userinfo dictionary. vigorouscoding got the idea from: http://www.cocoabuilder.com/archive/cocoa/121824-…

KSImageView.h

#import <Cocoa/Cocoa.h>

@interface KSImageView : NSImageView

@end

KSImageView.m

#import "KSImageView.h"

@implementation KSImageView

- (void)concludeDragOperation:(id <NSDraggingInfo>)sender {
    NSPasteboard *pboard = sender.draggingPasteboard;
    NSString *plist = [pboard stringForType:NSFilenamesPboardType];
    
    if (!plist) return;
    
    NSArray<NSString*> *files =
        [NSPropertyListSerialization propertyListWithData:[plist dataUsingEncoding:NSUTF8StringEncoding]
                                                      options:NSPropertyListImmutable
                                                       format:NULL
                                                        error:NULL];
    if (files.count == 0) return;
    
    NSDictionary *userInfo = @{@"imagePath": files[0]};
    
    [[NSNotificationCenter defaultCenter] postNotificationName:@"KSImageDroppedNotification"
                                                        object:self
                                                      userInfo:userInfo];
}

- (void)delete:(id)sender {
}

- (void)cut:(id)sender {
}

@end