SKaplanOfficial

export AEDebugSends=1 AEDebugReceives=1 AEDebugVerbose=1 AEDebugOSL=1 AEDebugFlattenedEvents=1 AEDebug=1; osascript ...

SKaplanOfficial

File Magic Numbers

Magic numbers are the first bits of a file which uniquely identify the type of file. This makes programming easier because complicated file structures need not be searched in order to identify the file type.

For example, a jpeg file starts with ffd8 ffe0 0010 4a46 4946 0001 0101 0047 ......JFIF.....G ffd8 shows that it's a JPEG file, and ffe0 identify a JFIF type structure. There is an ascii encoding of "JFIF" which comes after a length code, but that is not necessary in order to identify the file. The first 4 bytes do that uniquely.

This gives an ongoing list of file-type magic numbers.

Image Files

SKaplanOfficial

public extension NSImage {
    /// Resizes the image to the specified pixel dimensions.
    /// - Parameter newSize: The width and height (in pixels) to resize the image to.
    func resize(to newSize: NSSize) -> NSImage {
        guard let rep = NSBitmapImageRep(bitmapDataPlanes: nil, pixelsWide: Int(newSize.width), pixelsHigh: Int(newSize.height), bitsPerSample: 8, samplesPerPixel: 4, hasAlpha: true, isPlanar: false, colorSpaceName: .calibratedRGB, bytesPerRow: 0, bitsPerPixel: 0) else {
            assertionFailure("Could not create NSBitmapImageRep")
            return self
        }
        rep.size = newSize
        

SKaplanOfficial

public extension NSImage {
    /// The pixel width and height of the image.
    var dimensions: NSSize {
        let rep = self.representations.first
        return NSSize(width: rep?.pixelsWide ?? 0, height: rep?.pixelsHigh ?? 0)
    }
}

SKaplanOfficial

public extension NSImage {
    /// Gets the color at the specified coordinate.
    /// - Parameters:
    ///   - x: The horizontal coordinate.
    ///   - y: The vertical coordinate.
    func colorAt(x: Int, y: Int) -> NSColor? {
        if let tiffRep = self.tiffRepresentation {
            if let bitmapRep = NSBitmapImageRep(data: tiffRep) {
                let flippedY = Int(bitmapRep.size.height) - y
                let color = bitmapRep.colorAt(x: x, y: flippedY)

SKaplanOfficial

on resize(sourceImage, newSize)
	set rep to current application's NSBitmapImageRep's alloc()'s initWithBitmapDataPlanes:(missing value) pixelsWide:(newSize's width) pixelsHigh:(newSize's height) bitsPerSample:8 samplesPerPixel:4 hasAlpha:true isPlanar:no colorSpaceName:(current application's NSCalibratedRGBColorSpace) bytesPerRow:0 bitsPerPixel:0
	rep's setSize:newSize
	
	current application's NSGraphicsContext's saveGraphicsState()
	current application's NSGraphicsContext's setCurrentContext:(current application's NSGraphicsContext's graphicsContextWithBitmapImageRep:rep)
	sourceImage's drawInRect:(current application's NSMakeRect(0, 0, newSize's width, newSize's height)) fromRect:(current application's NSZeroRect) operation:(current application's NSCompositeCopy) fraction:1.0
	current application's NSGraphicsContext's restoreGraphicsState()
	
	set newImage to current application's NSImage's alloc()'s initWithSize:newSize

SKaplanOfficial

public extension NSImage {
    /// Initializes and returns a new color swatch image.
    /// - Parameters:
    ///   - color: The fill color of the image.
    ///   - size: The width and height of the image.
    convenience init(color: NSColor, size: NSSize) throws {
        self.init(size: size)
        
        guard let ciColor = CIColor(color: color) else {
            assertionFailure("Could not create CIColor from NSColor")

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defaults -currentHost write -globalDomain NSStatusItemSpacing -int 6
defaults -currentHost write -globalDomain NSStatusItemSelectionPadding -int 6
killall ControlCenter

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(() => {
	ObjC.import('objc');
	ObjC.import('AppKit')
	
	// Get methods of ObjC class, store # of methods and properties in reference objects
	const targetClass = $.NSImage;
	const num_methods = Ref();
	const num_properties = Ref();
	const methods = $.class_copyMethodList(targetClass, num_methods);
	const properties = $.class_copyPropertyList(targetClass, num_properties)

SKaplanOfficial

ObjC.import("AVFoundation");
ObjC.import('Speech');
ObjC.import("objc");
	
function recordForDuration(duration, destination) {
	const settings = $.NSMutableDictionary.alloc.init;
	settings.setValueForKey($.kAudioFormatAppleIMA4, $.AVFormatIDKey);
    
	// Some macOS versions fail to link $.AVAudioFormat, so we manually get the class
	const format = $.objc_getClass("AVAudioFormat").alloc.initWithSettings(settings);