Benjamin Jackson
bhjac****@gmail*****
Thu Jan 25 13:14:34 JST 2007
Trying to save an image using the latest stable build:
url = NSURL.fileURLWithPath(path)
image = CIImage.imageWithContentsOfURL(url)
bitmap = NSBitmapImageRep.alloc.initWithBitmapDataPlanes_pixelsWide_pixelsHigh_bitsPerSample_samplesPerPixel_hasAlpha_isPlanar_colorSpaceName_bytesPerRow_bitsPerPixel(
nil, image.extent.size.width, image.extent.size.height, 8, 4,
true, false, NSDeviceRGBColorSpace, 0, 0)
context = NSGraphicsContext.graphicsContextWithBitmapImageRep bitmap
NSGraphicsContext.saveGraphicsState
NSGraphicsContext.setCurrentContext context
context.CIContext.drawImage_atPoint_fromRect image,
CGPoint.new(0,0), image.extent
NSGraphicsContext.restoreGraphicsState
bitmap.writeToFile_atomically("/Users/bjackson/Desktop/test.bmp", true)
/Library/Frameworks/RubyCocoa.framework/Versions/A/Resources/ruby/osx/objc/oc_wrapper.rb:48:in
`NSApplicationMain': NSApplicationMain -
RBException_OSX::OCMessageSendException -
NSBitmapImageRep#writeToFile:atomically: - Can't get Objective-C
method signature for selector 'writeToFile:atomically:' of receiver
#<OSX::NSBitmapImageRep:0x154f7e class='NSBitmapImageRep'
id=0x1151420> (OSX::OCException)
Tried using the method with a "hello world" NSString and an empty
NSData object, and both compiled without error.