[Cocoa]_[初级]_[用NSImage把大图制作成小图]

概述- (NSImage*) resizeImage:(NSImage*)sourceImage size:(NSSize)size{ NSAutoreleasePool *pool = [NSAutoreleasePool new]; NSRect targetFrame = NSMakeRect(0, 0, size.width, size.height); NSImag

- (NSImage*) resizeImage:(NSImage*)sourceImage size:(NSSize)size{    NSautoreleasePool *pool = [NSautoreleasePool new];    NSRect targetFrame = NSMakeRect(0,size.wIDth,size.height);    NSImage* targetimage = nil;    NSImageRep *sourceImageRep =    [sourceImage bestRepresentationForRect:targetFrame                                   context:nil                                     hints:nil];        targetimage = [[NSImage alloc] initWithSize:size];        [targetimage lockFocus];    [sourceImageRep drawInRect: targetFrame];    [targetimage unlockFocus];    [pool drain];    return targetimage;}

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