# Core Graphics Functions ## Topics ### Functions [`func CGAcquireDisplayFadeReservation(CGDisplayReservationInterval, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGAcquireDisplayFadeReservation(_:_:)) Reserves the fade hardware for a specified time interval. [`func CGAssociateMouseAndMouseCursorPosition(boolean_t) -> CGError`](/documentation/CoreGraphics/CGAssociateMouseAndMouseCursorPosition(_:)) Connects or disconnects the mouse and cursor while an application is in the foreground. [`func CGBeginDisplayConfiguration(UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGBeginDisplayConfiguration(_:)) Begins a new set of display configuration changes. [`func CGCancelDisplayConfiguration(CGDisplayConfigRef?) -> CGError`](/documentation/CoreGraphics/CGCancelDisplayConfiguration(_:)) Cancels a set of display configuration changes. [`func CGCaptureAllDisplays() -> CGError`](/documentation/CoreGraphics/CGCaptureAllDisplays()) Obtains exclusive use of all active displays, preventing other applications and system services from using the display or changing its configuration. [`func CGCaptureAllDisplaysWithOptions(CGCaptureOptions) -> CGError`](/documentation/CoreGraphics/CGCaptureAllDisplaysWithOptions(_:)) Captures all attached displays, using the specified options. [`extern CGColorConversionInfoRefCGColorConversionInfoCreateFromList(CFDictionaryRef options, CGColorSpaceRef , CGColorConversionInfoTransformType , CGColorRenderingIntent , ...);`](/documentation/CoreGraphics/CGColorConversionInfoCreateFromList) Creates a conversion between an arbitrary number of specified color spaces. [`func CGCompleteDisplayConfiguration(CGDisplayConfigRef?, CGConfigureOption) -> CGError`](/documentation/CoreGraphics/CGCompleteDisplayConfiguration(_:_:)) Completes a set of display configuration changes. [`func CGConfigureDisplayFadeEffect(CGDisplayConfigRef?, CGDisplayFadeInterval, CGDisplayFadeInterval, Float, Float, Float) -> CGError`](/documentation/CoreGraphics/CGConfigureDisplayFadeEffect(_:_:_:_:_:_:)) Modifies the settings of the built-in fade effect that occurs during a display configuration. [`func CGConfigureDisplayMirrorOfDisplay(CGDisplayConfigRef?, CGDirectDisplayID, CGDirectDisplayID) -> CGError`](/documentation/CoreGraphics/CGConfigureDisplayMirrorOfDisplay(_:_:_:)) Changes the configuration of a mirroring set. [`func CGConfigureDisplayMode(CGDisplayConfigRef?, CGDirectDisplayID, CFDictionary?) -> CGError`](/documentation/CoreGraphics/CGConfigureDisplayMode(_:_:_:)) Configures the display mode of a display. [`func CGConfigureDisplayOrigin(CGDisplayConfigRef?, CGDirectDisplayID, Int32, Int32) -> CGError`](/documentation/CoreGraphics/CGConfigureDisplayOrigin(_:_:_:_:)) Configures the origin of a display relative to the global display coordinate space. [`func CGConfigureDisplayStereoOperation(CGDisplayConfigRef?, CGDirectDisplayID, boolean_t, boolean_t) -> CGError`](/documentation/CoreGraphics/CGConfigureDisplayStereoOperation(_:_:_:_:)) Enables or disables stereo operation for a display, as part of a display configuration. [`func CGConfigureDisplayWithDisplayMode(CGDisplayConfigRef?, CGDirectDisplayID, CGDisplayMode?, CFDictionary?) -> CGError`](/documentation/CoreGraphics/CGConfigureDisplayWithDisplayMode(_:_:_:_:)) Configures the display mode of a display. [`extern void CGContextDrawPDFDocument(CGContextRef c, CGRect rect, CGPDFDocumentRef document, int page);`](/documentation/CoreGraphics/CGContextDrawPDFDocument) [`func CGCursorIsDrawnInFramebuffer() -> boolean_t`](/documentation/CoreGraphics/CGCursorIsDrawnInFramebuffer()) Returns a Boolean value indicating whether the mouse cursor is drawn in framebuffer memory. [`func CGCursorIsVisible() -> boolean_t`](/documentation/CoreGraphics/CGCursorIsVisible()) Returns a Boolean value indicating whether the mouse cursor is visible. [`func CGDirectDisplayCopyCurrentMetalDevice(CGDirectDisplayID) -> (any MTLDevice)?`](/documentation/CoreGraphics/CGDirectDisplayCopyCurrentMetalDevice(_:)) Returns the GPU device instance that’s currently driving a display. [`func CGDisplayAvailableModes(CGDirectDisplayID) -> CFArray?`](/documentation/CoreGraphics/CGDisplayAvailableModes(_:)) Returns information about the currently available display modes. [`func CGDisplayBestModeForParameters(CGDirectDisplayID, Int, Int, Int, UnsafeMutablePointer?) -> CFDictionary?`](/documentation/CoreGraphics/CGDisplayBestModeForParameters(_:_:_:_:_:)) Returns information about the display mode closest to a specified depth and screen size. [`func CGDisplayBestModeForParametersAndRefreshRate(CGDirectDisplayID, Int, Int, Int, CGRefreshRate, UnsafeMutablePointer?) -> CFDictionary?`](/documentation/CoreGraphics/CGDisplayBestModeForParametersAndRefreshRate(_:_:_:_:_:_:)) Returns information about the display mode closest to a specified depth, screen size, and refresh rate. [`func CGDisplayBounds(CGDirectDisplayID) -> CGRect`](/documentation/CoreGraphics/CGDisplayBounds(_:)) Returns the bounds of a display in the global display coordinate space. [`func CGDisplayCapture(CGDirectDisplayID) -> CGError`](/documentation/CoreGraphics/CGDisplayCapture(_:)) Obtains exclusive use of a display, preventing other applications and system services from using the display or changing its configuration. [`func CGDisplayCaptureWithOptions(CGDirectDisplayID, CGCaptureOptions) -> CGError`](/documentation/CoreGraphics/CGDisplayCaptureWithOptions(_:_:)) Obtains exclusive use of a display for an application using the options you specify. [`func CGDisplayCopyAllDisplayModes(CGDirectDisplayID, CFDictionary?) -> CFArray?`](/documentation/CoreGraphics/CGDisplayCopyAllDisplayModes(_:_:)) Returns information about the currently available display modes. [`func CGDisplayCopyColorSpace(CGDirectDisplayID) -> CGColorSpace`](/documentation/CoreGraphics/CGDisplayCopyColorSpace(_:)) Returns the color space for a display. [`func CGDisplayCopyDisplayMode(CGDirectDisplayID) -> CGDisplayMode?`](/documentation/CoreGraphics/CGDisplayCopyDisplayMode(_:)) Returns information about a display’s current configuration. [`func CGDisplayCurrentMode(CGDirectDisplayID) -> CFDictionary?`](/documentation/CoreGraphics/CGDisplayCurrentMode(_:)) Returns information about the current display mode. [`func CGDisplayFade(CGDisplayFadeReservationToken, CGDisplayFadeInterval, CGDisplayBlendFraction, CGDisplayBlendFraction, Float, Float, Float, boolean_t) -> CGError`](/documentation/CoreGraphics/CGDisplayFade(_:_:_:_:_:_:_:_:)) Performs a single fade operation. [`func CGDisplayFadeOperationInProgress() -> boolean_t`](/documentation/CoreGraphics/CGDisplayFadeOperationInProgress()) Returns a Boolean value indicating whether a fade operation is currently in progress. [`func CGDisplayGammaTableCapacity(CGDirectDisplayID) -> UInt32`](/documentation/CoreGraphics/CGDisplayGammaTableCapacity(_:)) Returns the capacity, or number of entries, in the gamma table for a display. [`func CGDisplayGetDrawingContext(CGDirectDisplayID) -> CGContext?`](/documentation/CoreGraphics/CGDisplayGetDrawingContext(_:)) Returns a graphics context suitable for drawing to a captured display. [`func CGDisplayHideCursor(CGDirectDisplayID) -> CGError`](/documentation/CoreGraphics/CGDisplayHideCursor(_:)) Hides the mouse cursor, and increments the hide cursor count. [`func CGDisplayIDToOpenGLDisplayMask(CGDirectDisplayID) -> CGOpenGLDisplayMask`](/documentation/CoreGraphics/CGDisplayIDToOpenGLDisplayMask(_:)) Maps a display ID to an OpenGL display mask. [`func CGDisplayIOServicePort(CGDirectDisplayID) -> io_service_t`](/documentation/CoreGraphics/CGDisplayIOServicePort(_:)) Returns the I/O Kit service port of the specified display. [`func CGDisplayIsActive(CGDirectDisplayID) -> boolean_t`](/documentation/CoreGraphics/CGDisplayIsActive(_:)) Returns a Boolean value indicating whether a display is active. [`func CGDisplayIsAlwaysInMirrorSet(CGDirectDisplayID) -> boolean_t`](/documentation/CoreGraphics/CGDisplayIsAlwaysInMirrorSet(_:)) Returns a Boolean value indicating whether a display is always in a mirroring set. [`func CGDisplayIsAsleep(CGDirectDisplayID) -> boolean_t`](/documentation/CoreGraphics/CGDisplayIsAsleep(_:)) Returns a Boolean value indicating whether a display is sleeping (and is therefore not drawable). [`func CGDisplayIsBuiltin(CGDirectDisplayID) -> boolean_t`](/documentation/CoreGraphics/CGDisplayIsBuiltin(_:)) Returns a Boolean value indicating whether a display is built-in, such as the internal display in portable systems. [`func CGDisplayIsCaptured(CGDirectDisplayID) -> boolean_t`](/documentation/CoreGraphics/CGDisplayIsCaptured(_:)) Returns a Boolean value indicating whether a display is captured. [`func CGDisplayIsInHWMirrorSet(CGDirectDisplayID) -> boolean_t`](/documentation/CoreGraphics/CGDisplayIsInHWMirrorSet(_:)) Returns a Boolean value indicating whether a display is in a hardware mirroring set. [`func CGDisplayIsInMirrorSet(CGDirectDisplayID) -> boolean_t`](/documentation/CoreGraphics/CGDisplayIsInMirrorSet(_:)) Returns a Boolean value indicating whether a display is in a mirroring set. [`func CGDisplayIsMain(CGDirectDisplayID) -> boolean_t`](/documentation/CoreGraphics/CGDisplayIsMain(_:)) Returns a Boolean value indicating whether a display is the main display. [`func CGDisplayIsOnline(CGDirectDisplayID) -> boolean_t`](/documentation/CoreGraphics/CGDisplayIsOnline(_:)) Returns a Boolean value indicating whether a display is connected or online. [`func CGDisplayIsStereo(CGDirectDisplayID) -> boolean_t`](/documentation/CoreGraphics/CGDisplayIsStereo(_:)) Returns a Boolean value indicating whether a display is running in a stereo graphics mode. [`func CGDisplayMirrorsDisplay(CGDirectDisplayID) -> CGDirectDisplayID`](/documentation/CoreGraphics/CGDisplayMirrorsDisplay(_:)) For a secondary display in a mirroring set, returns the primary display. [`var pixelEncoding: CFString?`](/documentation/CoreGraphics/CGDisplayMode/pixelEncoding) Returns the pixel encoding of the specified display mode. [`var height: Int`](/documentation/CoreGraphics/CGDisplayMode/height) Returns the height of the specified display mode. [`var ioDisplayModeID: Int32`](/documentation/CoreGraphics/CGDisplayMode/ioDisplayModeID) Returns the I/O Kit display mode ID of the specified display mode. [`var ioFlags: UInt32`](/documentation/CoreGraphics/CGDisplayMode/ioFlags) Returns the I/O Kit flags of the specified display mode. [`var pixelWidth: Int`](/documentation/CoreGraphics/CGDisplayMode/pixelWidth) [`var refreshRate: Double`](/documentation/CoreGraphics/CGDisplayMode/refreshRate) Returns the refresh rate of the specified display mode. [`class var typeID: CFTypeID`](/documentation/CoreGraphics/CGDisplayMode/typeID) Returns the type identifier of Quartz display modes. [`var width: Int`](/documentation/CoreGraphics/CGDisplayMode/width) Returns the width of the specified display mode. [`func isUsableForDesktopGUI() -> Bool`](/documentation/CoreGraphics/CGDisplayMode/isUsableForDesktopGUI()) Returns a Boolean value indicating whether the specified display mode is usable for a desktop graphical user interface. [`extern void CGDisplayModeRelease(CGDisplayModeRef mode);`](/documentation/CoreGraphics/CGDisplayModeRelease) Releases a Core Graphics display mode. [`extern CGDisplayModeRefCGDisplayModeRetain(CGDisplayModeRef mode);`](/documentation/CoreGraphics/CGDisplayModeRetain) Retains a Core Graphics display mode. [`func CGDisplayModelNumber(CGDirectDisplayID) -> UInt32`](/documentation/CoreGraphics/CGDisplayModelNumber(_:)) Returns the model number of a display monitor. [`func CGDisplayMoveCursorToPoint(CGDirectDisplayID, CGPoint) -> CGError`](/documentation/CoreGraphics/CGDisplayMoveCursorToPoint(_:_:)) Moves the mouse cursor to a specified point relative to the upper-left corner of the display. [`func CGDisplayPixelsHigh(CGDirectDisplayID) -> Int`](/documentation/CoreGraphics/CGDisplayPixelsHigh(_:)) Returns the display height in pixel units. [`func CGDisplayPixelsWide(CGDirectDisplayID) -> Int`](/documentation/CoreGraphics/CGDisplayPixelsWide(_:)) Returns the display width in pixel units. [`func CGDisplayPrimaryDisplay(CGDirectDisplayID) -> CGDirectDisplayID`](/documentation/CoreGraphics/CGDisplayPrimaryDisplay(_:)) Returns the primary display in a hardware mirroring set. [`func CGDisplayRegisterReconfigurationCallback(CGDisplayReconfigurationCallBack?, UnsafeMutableRawPointer?) -> CGError`](/documentation/CoreGraphics/CGDisplayRegisterReconfigurationCallback(_:_:)) Registers a callback function to be invoked whenever a local display is reconfigured. [`func CGDisplayRelease(CGDirectDisplayID) -> CGError`](/documentation/CoreGraphics/CGDisplayRelease(_:)) Releases a captured display. [`func CGDisplayRemoveReconfigurationCallback(CGDisplayReconfigurationCallBack?, UnsafeMutableRawPointer?) -> CGError`](/documentation/CoreGraphics/CGDisplayRemoveReconfigurationCallback(_:_:)) Removes the registration of a callback function that’s invoked whenever a local display is reconfigured. [`func CGDisplayRestoreColorSyncSettings()`](/documentation/CoreGraphics/CGDisplayRestoreColorSyncSettings()) Restores the gamma tables to the values in the user’s ColorSync display profile. [`func CGDisplayRotation(CGDirectDisplayID) -> Double`](/documentation/CoreGraphics/CGDisplayRotation(_:)) Returns the rotation angle of a display in degrees. [`func CGDisplayScreenSize(CGDirectDisplayID) -> CGSize`](/documentation/CoreGraphics/CGDisplayScreenSize(_:)) Returns the width and height of a display in millimeters. [`func CGDisplaySerialNumber(CGDirectDisplayID) -> UInt32`](/documentation/CoreGraphics/CGDisplaySerialNumber(_:)) Returns the serial number of a display monitor. [`func CGDisplaySetDisplayMode(CGDirectDisplayID, CGDisplayMode?, CFDictionary?) -> CGError`](/documentation/CoreGraphics/CGDisplaySetDisplayMode(_:_:_:)) Switches a display to a different mode. [`func CGDisplaySetStereoOperation(CGDirectDisplayID, boolean_t, boolean_t, CGConfigureOption) -> CGError`](/documentation/CoreGraphics/CGDisplaySetStereoOperation(_:_:_:_:)) Immediately enables or disables stereo operation for a display. [`func CGDisplayShowCursor(CGDirectDisplayID) -> CGError`](/documentation/CoreGraphics/CGDisplayShowCursor(_:)) Decrements the hide cursor count, and shows the mouse cursor if the count is `0`. [`func CGDisplaySwitchToMode(CGDirectDisplayID, CFDictionary?) -> CGError`](/documentation/CoreGraphics/CGDisplaySwitchToMode(_:_:)) Switches a display to a different mode. [`func CGDisplayUnitNumber(CGDirectDisplayID) -> UInt32`](/documentation/CoreGraphics/CGDisplayUnitNumber(_:)) Returns the logical unit number of a display. [`func CGDisplayUsesOpenGLAcceleration(CGDirectDisplayID) -> boolean_t`](/documentation/CoreGraphics/CGDisplayUsesOpenGLAcceleration(_:)) Returns a Boolean value indicating whether Quartz is using OpenGL-based window acceleration (Quartz Extreme) to render in a display. [`func CGDisplayVendorNumber(CGDirectDisplayID) -> UInt32`](/documentation/CoreGraphics/CGDisplayVendorNumber(_:)) Returns the vendor number of the specified display’s monitor. [`func CGEnableEventStateCombining(boolean_t) -> CGError`](/documentation/CoreGraphics/CGEnableEventStateCombining(_:)) Enables or disables the merging of actual key and mouse state with the application-specified state in a synthetic event. [`init?(source: CGEventSource?)`](/documentation/CoreGraphics/CGEvent/init(source:)) Returns a new Quartz event. [`func copy() -> CGEvent?`](/documentation/CoreGraphics/CGEvent/copy()) Returns a copy of an existing Quartz event. [`extern CFDataRefCGEventCreateData(CFAllocatorRef allocator, CGEventRef event);`](/documentation/CoreGraphics/CGEventCreateData) Returns a flattened data representation of a Quartz event. [`init?(withDataAllocator: CFAllocator?, data: CFData?)`](/documentation/CoreGraphics/CGEvent/init(withDataAllocator:data:)) Returns a Quartz event created from a flattened data representation of the event. [`init?(keyboardEventSource: CGEventSource?, virtualKey: CGKeyCode, keyDown: Bool)`](/documentation/CoreGraphics/CGEvent/init(keyboardEventSource:virtualKey:keyDown:)) Returns a new Quartz keyboard event. [`init?(mouseEventSource: CGEventSource?, mouseType: CGEventType, mouseCursorPosition: CGPoint, mouseButton: CGMouseButton)`](/documentation/CoreGraphics/CGEvent/init(mouseEventSource:mouseType:mouseCursorPosition:mouseButton:)) Returns a new Quartz mouse event. [`extern CGEventRefCGEventCreateScrollWheelEvent(CGEventSourceRef source, CGScrollEventUnit units, uint32_t wheelCount, int32_t wheel1, ...);`](/documentation/CoreGraphics/CGEventCreateScrollWheelEvent) Returns a new Quartz scrolling event. [`init?(event: CGEvent?)`](/documentation/CoreGraphics/CGEventSource/init(event:)) Returns a Quartz event source created from an existing Quartz event. [`func getDoubleValueField(CGEventField) -> Double`](/documentation/CoreGraphics/CGEvent/getDoubleValueField(_:)) Returns the floating-point value of a field in a Quartz event. [`var flags: CGEventFlags`](/documentation/CoreGraphics/CGEvent/flags) Returns the event flags of a Quartz event. [`func getIntegerValueField(CGEventField) -> Int64`](/documentation/CoreGraphics/CGEvent/getIntegerValueField(_:)) Returns the integer value of a field in a Quartz event. [`var location: CGPoint`](/documentation/CoreGraphics/CGEvent/location) Returns the location of a Quartz mouse event. [`var timestamp: CGEventTimestamp`](/documentation/CoreGraphics/CGEvent/timestamp) Returns the timestamp of a Quartz event. [`var type: CGEventType`](/documentation/CoreGraphics/CGEvent/type) Returns the event type of a Quartz event (left mouse down, for example). [`class var typeID: CFTypeID`](/documentation/CoreGraphics/CGEvent/typeID) Returns the type identifier for the opaque type `CGEventRef`. [`var unflippedLocation: CGPoint`](/documentation/CoreGraphics/CGEvent/unflippedLocation) Returns the location of a Quartz mouse event. [`func keyboardGetUnicodeString(maxStringLength: Int, actualStringLength: UnsafeMutablePointer?, unicodeString: UnsafeMutablePointer?)`](/documentation/CoreGraphics/CGEvent/keyboardGetUnicodeString(maxStringLength:actualStringLength:unicodeString:)) Returns the Unicode string associated with a Quartz keyboard event. [`func keyboardSetUnicodeString(stringLength: Int, unicodeString: UnsafePointer?)`](/documentation/CoreGraphics/CGEvent/keyboardSetUnicodeString(stringLength:unicodeString:)) Sets the Unicode string associated with a Quartz keyboard event. [`func post(tap: CGEventTapLocation)`](/documentation/CoreGraphics/CGEvent/post(tap:)) Posts a Quartz event into the event stream at a specified location. [`func postToPSN(processSerialNumber: UnsafeMutableRawPointer?)`](/documentation/CoreGraphics/CGEvent/postToPSN(processSerialNumber:)) Posts a Quartz event into the event stream for a specific application. [`func postToPid(pid_t)`](/documentation/CoreGraphics/CGEvent/postToPid(_:)) [`func setDoubleValueField(CGEventField, value: Double)`](/documentation/CoreGraphics/CGEvent/setDoubleValueField(_:value:)) Sets the floating-point value of a field in a Quartz event. [`extern void CGEventSetFlags(CGEventRef event, CGEventFlags flags);`](/documentation/CoreGraphics/CGEventSetFlags) Sets the event flags of a Quartz event. [`func setIntegerValueField(CGEventField, value: Int64)`](/documentation/CoreGraphics/CGEvent/setIntegerValueField(_:value:)) Sets the integer value of a field in a Quartz event. [`extern void CGEventSetLocation(CGEventRef event, CGPoint location);`](/documentation/CoreGraphics/CGEventSetLocation) Sets the location of a Quartz mouse event. [`func setSource(CGEventSource?)`](/documentation/CoreGraphics/CGEvent/setSource(_:)) Sets the event source of a Quartz event. [`extern void CGEventSetTimestamp(CGEventRef event, CGEventTimestamp timestamp);`](/documentation/CoreGraphics/CGEventSetTimestamp) Sets the timestamp of a Quartz event. [`extern void CGEventSetType(CGEventRef event, CGEventType type);`](/documentation/CoreGraphics/CGEventSetType) Sets the event type of a Quartz event (left mouse down, for example). [`class func buttonState(CGEventSourceStateID, button: CGMouseButton) -> Bool`](/documentation/CoreGraphics/CGEventSource/buttonState(_:button:)) Returns a Boolean value indicating the current button state of a Quartz event source. [`class func counterForEventType(CGEventSourceStateID, eventType: CGEventType) -> UInt32`](/documentation/CoreGraphics/CGEventSource/counterForEventType(_:eventType:)) Returns a count of events of a given type seen since the window server started. [`init?(stateID: CGEventSourceStateID)`](/documentation/CoreGraphics/CGEventSource/init(stateID:)) Returns a Quartz event source created with a specified source state. [`class func flagsState(CGEventSourceStateID) -> CGEventFlags`](/documentation/CoreGraphics/CGEventSource/flagsState(_:)) Returns the current flags of a Quartz event source. [`var keyboardType: CGEventSourceKeyboardType`](/documentation/CoreGraphics/CGEventSource/keyboardType) Returns the keyboard type to be used with a Quartz event source. [`func getLocalEventsFilterDuringSuppressionState(CGEventSuppressionState) -> CGEventFilterMask`](/documentation/CoreGraphics/CGEventSource/getLocalEventsFilterDuringSuppressionState(_:)) Returns the mask that indicates which classes of local hardware events are enabled during event suppression. [`var pixelsPerLine: Double`](/documentation/CoreGraphics/CGEventSource/pixelsPerLine) Gets the scale of pixels per line in a scrolling event source. [`var sourceStateID: CGEventSourceStateID`](/documentation/CoreGraphics/CGEventSource/sourceStateID) Returns the source state associated with a Quartz event source. [`class var typeID: CFTypeID`](/documentation/CoreGraphics/CGEventSource/typeID) Returns the type identifier for the opaque type `CGEventSourceRef`. [`var userData: Int64`](/documentation/CoreGraphics/CGEventSource/userData) Returns the 64-bit user-specified data for a Quartz event source. [`class func keyState(CGEventSourceStateID, key: CGKeyCode) -> Bool`](/documentation/CoreGraphics/CGEventSource/keyState(_:key:)) Returns a Boolean value indicating the current keyboard state of a Quartz event source. [`class func secondsSinceLastEventType(CGEventSourceStateID, eventType: CGEventType) -> CFTimeInterval`](/documentation/CoreGraphics/CGEventSource/secondsSinceLastEventType(_:eventType:)) Returns the elapsed time since the last event for a Quartz event source. [`extern void CGEventSourceSetKeyboardType(CGEventSourceRef source, CGEventSourceKeyboardType keyboardType);`](/documentation/CoreGraphics/CGEventSourceSetKeyboardType) Sets the keyboard type to be used with a Quartz event source. [`func setLocalEventsFilterDuringSuppressionState(CGEventFilterMask, state: CGEventSuppressionState)`](/documentation/CoreGraphics/CGEventSource/setLocalEventsFilterDuringSuppressionState(_:state:)) Sets the mask that indicates which classes of local hardware events are enabled during event suppression. [`extern void CGEventSourceSetLocalEventsSuppressionInterval(CGEventSourceRef source, CFTimeInterval seconds);`](/documentation/CoreGraphics/CGEventSourceSetLocalEventsSuppressionInterval) Sets the interval that local hardware events may be suppressed following the posting of a Quartz event. [`extern void CGEventSourceSetPixelsPerLine(CGEventSourceRef source, double pixelsPerLine);`](/documentation/CoreGraphics/CGEventSourceSetPixelsPerLine) Sets the scale of pixels per line in a scrolling event source. [`extern void CGEventSourceSetUserData(CGEventSourceRef source, int64_t userData);`](/documentation/CoreGraphics/CGEventSourceSetUserData) Sets the 64-bit user-specified data for a Quartz event source. [`class func tapCreate(tap: CGEventTapLocation, place: CGEventTapPlacement, options: CGEventTapOptions, eventsOfInterest: CGEventMask, callback: CGEventTapCallBack, userInfo: UnsafeMutableRawPointer?) -> CFMachPort?`](/documentation/CoreGraphics/CGEvent/tapCreate(tap:place:options:eventsOfInterest:callback:userInfo:)) Creates an event tap. [`class func tapCreateForPSN(processSerialNumber: UnsafeMutableRawPointer, place: CGEventTapPlacement, options: CGEventTapOptions, eventsOfInterest: CGEventMask, callback: CGEventTapCallBack, userInfo: UnsafeMutableRawPointer?) -> CFMachPort?`](/documentation/CoreGraphics/CGEvent/tapCreateForPSN(processSerialNumber:place:options:eventsOfInterest:callback:userInfo:)) Creates an event tap for a specified process. [`class func tapCreateForPid(pid: pid_t, place: CGEventTapPlacement, options: CGEventTapOptions, eventsOfInterest: CGEventMask, callback: CGEventTapCallBack, userInfo: UnsafeMutableRawPointer?) -> CFMachPort?`](/documentation/CoreGraphics/CGEvent/tapCreateForPid(pid:place:options:eventsOfInterest:callback:userInfo:)) [`class func tapEnable(tap: CFMachPort, enable: Bool)`](/documentation/CoreGraphics/CGEvent/tapEnable(tap:enable:)) Enables or disables an event tap. [`class func tapIsEnabled(tap: CFMachPort) -> Bool`](/documentation/CoreGraphics/CGEvent/tapIsEnabled(tap:)) Returns a Boolean value indicating whether an event tap is enabled. [`func tapPostEvent(CGEventTapProxy?)`](/documentation/CoreGraphics/CGEvent/tapPostEvent(_:)) Posts a Quartz event from an event tap into the event stream. [`func CGGetActiveDisplayList(UInt32, UnsafeMutablePointer?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGGetActiveDisplayList(_:_:_:)) Provides a list of displays that are active for drawing. [`func CGGetDisplayTransferByFormula(CGDirectDisplayID, UnsafeMutablePointer?, UnsafeMutablePointer?, UnsafeMutablePointer?, UnsafeMutablePointer?, UnsafeMutablePointer?, UnsafeMutablePointer?, UnsafeMutablePointer?, UnsafeMutablePointer?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGGetDisplayTransferByFormula(_:_:_:_:_:_:_:_:_:_:)) Gets the coefficients of the gamma transfer formula for a display. [`func CGGetDisplayTransferByTable(CGDirectDisplayID, UInt32, UnsafeMutablePointer?, UnsafeMutablePointer?, UnsafeMutablePointer?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGGetDisplayTransferByTable(_:_:_:_:_:_:)) Gets the values in the RGB gamma tables for a display. [`func CGGetDisplaysWithOpenGLDisplayMask(CGOpenGLDisplayMask, UInt32, UnsafeMutablePointer?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGGetDisplaysWithOpenGLDisplayMask(_:_:_:_:)) Provides a list of displays that corresponds to the bits set in an OpenGL display mask. [`func CGGetDisplaysWithPoint(CGPoint, UInt32, UnsafeMutablePointer?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGGetDisplaysWithPoint(_:_:_:_:)) Provides a list of online displays with bounds that include the specified point. [`func CGGetDisplaysWithRect(CGRect, UInt32, UnsafeMutablePointer?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGGetDisplaysWithRect(_:_:_:_:)) Gets a list of online displays with bounds that intersect the specified rectangle. [`func CGGetEventTapList(UInt32, UnsafeMutablePointer?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGGetEventTapList(_:_:_:)) Gets a list of currently installed event taps. [`func CGGetLastMouseDelta() -> (x: Int32, y: Int32)`](/documentation/CoreGraphics/CGGetLastMouseDelta()) Reports the change in mouse position since the last mouse movement event received by the application. [`extern void CGGetLastMouseDelta(int32_t *deltaX, int32_t *deltaY);`](/documentation/CoreGraphics/CGGetLastMouseDelta) Reports the change in mouse position since the last mouse movement event received by the application. [`func CGGetOnlineDisplayList(UInt32, UnsafeMutablePointer?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGGetOnlineDisplayList(_:_:_:)) Provides a list of displays that are online (active, mirrored, or sleeping). [`var utType: CFString?`](/documentation/CoreGraphics/CGImage/utType) The Universal Type Identifier for the image. [`func CGInhibitLocalEvents(boolean_t) -> CGError`](/documentation/CoreGraphics/CGInhibitLocalEvents(_:)) Turns off local hardware events in the current session. [`func CGMainDisplayID() -> CGDirectDisplayID`](/documentation/CoreGraphics/CGMainDisplayID()) Returns the display ID of the main display. [`func CGOpenGLDisplayMaskToDisplayID(CGOpenGLDisplayMask) -> CGDirectDisplayID`](/documentation/CoreGraphics/CGOpenGLDisplayMaskToDisplayID(_:)) Maps an OpenGL display mask to a display ID. [`func CGPointEqualToPoint(CGPoint, CGPoint) -> Bool`](/documentation/CoreGraphics/CGPointEqualToPoint(_:_:)) Returns whether two points are equal. [`func CGPostKeyboardEvent(CGCharCode, CGKeyCode, boolean_t) -> CGError`](/documentation/CoreGraphics/CGPostKeyboardEvent(_:_:_:)) Synthesizes a low-level keyboard event on the local machine. [`extern CGError CGPostMouseEvent(CGPoint mouseCursorPosition, boolean_t updateMouseCursorPosition, CGButtonCount buttonCount, boolean_t mouseButtonDown, ...);`](/documentation/CoreGraphics/CGPostMouseEvent) Synthesizes a low-level mouse-button event on the local machine. [`extern CGError CGPostScrollWheelEvent(CGWheelCount wheelCount, int32_t wheel1, ...);`](/documentation/CoreGraphics/CGPostScrollWheelEvent) Synthesizes a low-level scrolling event on the local machine. [`func CGRegisterScreenRefreshCallback(CGScreenRefreshCallback, UnsafeMutableRawPointer?) -> CGError`](/documentation/CoreGraphics/CGRegisterScreenRefreshCallback(_:_:)) Registers a callback function to be invoked when local displays are refreshed or modified. [`func CGReleaseAllDisplays() -> CGError`](/documentation/CoreGraphics/CGReleaseAllDisplays()) Releases all captured displays. [`func CGReleaseDisplayFadeReservation(CGDisplayFadeReservationToken) -> CGError`](/documentation/CoreGraphics/CGReleaseDisplayFadeReservation(_:)) Releases a display fade reservation, and unfades the display if needed. [`func CGReleaseScreenRefreshRects(UnsafeMutablePointer?)`](/documentation/CoreGraphics/CGReleaseScreenRefreshRects(_:)) Deallocates a list of rectangles that represent changed areas on local displays. [`func CGRestorePermanentDisplayConfiguration()`](/documentation/CoreGraphics/CGRestorePermanentDisplayConfiguration()) Restores the permanent display configuration settings for the current user. [`func CGScreenRegisterMoveCallback(CGScreenUpdateMoveCallback, UnsafeMutableRawPointer?) -> CGError`](/documentation/CoreGraphics/CGScreenRegisterMoveCallback(_:_:)) Registers a callback function to be invoked when an area of the display is moved. [`func CGScreenUnregisterMoveCallback(CGScreenUpdateMoveCallback, UnsafeMutableRawPointer?)`](/documentation/CoreGraphics/CGScreenUnregisterMoveCallback(_:_:)) Removes a previously registered callback function invoked when an area of the display is moved. [`func CGSessionCopyCurrentDictionary() -> CFDictionary?`](/documentation/CoreGraphics/CGSessionCopyCurrentDictionary()) Returns information about the caller’s window server session. [`func CGSetDisplayTransferByByteTable(CGDirectDisplayID, UInt32, UnsafePointer, UnsafePointer, UnsafePointer) -> CGError`](/documentation/CoreGraphics/CGSetDisplayTransferByByteTable(_:_:_:_:_:)) Sets the byte values in the 8-bit RGB gamma tables for a display. [`func CGSetDisplayTransferByFormula(CGDirectDisplayID, CGGammaValue, CGGammaValue, CGGammaValue, CGGammaValue, CGGammaValue, CGGammaValue, CGGammaValue, CGGammaValue, CGGammaValue) -> CGError`](/documentation/CoreGraphics/CGSetDisplayTransferByFormula(_:_:_:_:_:_:_:_:_:_:)) Sets the gamma function for a display by specifying the coefficients of the gamma transfer formula. [`func CGSetDisplayTransferByTable(CGDirectDisplayID, UInt32, UnsafePointer?, UnsafePointer?, UnsafePointer?) -> CGError`](/documentation/CoreGraphics/CGSetDisplayTransferByTable(_:_:_:_:_:)) Sets the color gamma function for a display by specifying the values in the RGB gamma tables. [`func CGSetLocalEventsFilterDuringSuppressionState(CGEventFilterMask, CGEventSuppressionState) -> CGError`](/documentation/CoreGraphics/CGSetLocalEventsFilterDuringSuppressionState(_:_:)) Filters local hardware events from the keyboard and mouse during the short interval after a synthetic event is posted. [`func CGSetLocalEventsSuppressionInterval(CFTimeInterval) -> CGError`](/documentation/CoreGraphics/CGSetLocalEventsSuppressionInterval(_:)) Sets the time interval in seconds that local hardware events are suppressed after posting a synthetic event. [`func CGShieldingWindowID(CGDirectDisplayID) -> CGWindowID`](/documentation/CoreGraphics/CGShieldingWindowID(_:)) Returns the window ID of the shield window for a captured display. [`func CGShieldingWindowLevel() -> CGWindowLevel`](/documentation/CoreGraphics/CGShieldingWindowLevel()) Returns the window level of the shield window for a captured display. [`func CGSizeEqualToSize(CGSize, CGSize) -> Bool`](/documentation/CoreGraphics/CGSizeEqualToSize(_:_:)) Returns whether two sizes are equal. [`func CGUnregisterScreenRefreshCallback(CGScreenRefreshCallback, UnsafeMutableRawPointer?)`](/documentation/CoreGraphics/CGUnregisterScreenRefreshCallback(_:_:)) Removes a previously registered callback function invoked when local displays are refreshed or modified. [`func CGWaitForScreenRefreshRects(UnsafeMutablePointer?>?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGWaitForScreenRefreshRects(_:_:)) Waits for screen refresh operations. [`func CGWaitForScreenUpdateRects(CGScreenUpdateOperation, UnsafeMutablePointer?, UnsafeMutablePointer?>?, UnsafeMutablePointer?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGWaitForScreenUpdateRects(_:_:_:_:_:)) Waits for screen update operations. [`func CGWarpMouseCursorPosition(CGPoint) -> CGError`](/documentation/CoreGraphics/CGWarpMouseCursorPosition(_:)) Moves the mouse cursor without generating events. [`func CGWindowLevelForKey(CGWindowLevelKey) -> CGWindowLevel`](/documentation/CoreGraphics/CGWindowLevelForKey(_:)) Returns the window level that corresponds to one of the standard window types. [`func CGWindowListCopyWindowInfo(CGWindowListOption, CGWindowID) -> CFArray?`](/documentation/CoreGraphics/CGWindowListCopyWindowInfo(_:_:)) Generates and returns information about the selected windows in the current user session. [`extern CFArrayRefCGWindowListCreate(CGWindowListOption option, CGWindowID relativeToWindow);`](/documentation/CoreGraphics/CGWindowListCreate) Returns the list of window IDs associated with the specified windows in the current user session. [`func CGWindowListCreateDescriptionFromArray(CFArray?) -> CFArray?`](/documentation/CoreGraphics/CGWindowListCreateDescriptionFromArray(_:)) Generates and returns information about windows with the specified window IDs. [`func CGWindowServerCFMachPort() -> CFMachPort?`](/documentation/CoreGraphics/CGWindowServerCFMachPort()) Returns a Core Foundation Mach port (CFMachPort) that corresponds to the macOS window server. [`func CGWindowServerCreateServerPort() -> CFMachPort?`](/documentation/CoreGraphics/CGWindowServerCreateServerPort()) [`func acos(CGFloat) -> CGFloat`](/documentation/CoreGraphics/acos(_:)) [`func acosh(CGFloat) -> CGFloat`](/documentation/CoreGraphics/acosh(_:)) [`func asin(CGFloat) -> CGFloat`](/documentation/CoreGraphics/asin(_:)) [`func asinh(CGFloat) -> CGFloat`](/documentation/CoreGraphics/asinh(_:)) [`func atan(CGFloat) -> CGFloat`](/documentation/CoreGraphics/atan(_:)) [`func atan2(CGFloat, CGFloat) -> CGFloat`](/documentation/CoreGraphics/atan2(_:_:)) [`func atanh(CGFloat) -> CGFloat`](/documentation/CoreGraphics/atanh(_:)) [`func cbrt(CGFloat) -> CGFloat`](/documentation/CoreGraphics/cbrt(_:)) [`func copysign(CGFloat, CGFloat) -> CGFloat`](/documentation/CoreGraphics/copysign(_:_:)) [`func cos(CGFloat) -> CGFloat`](/documentation/CoreGraphics/cos(_:)) [`func cosh(CGFloat) -> CGFloat`](/documentation/CoreGraphics/cosh(_:)) [`func erf(CGFloat) -> CGFloat`](/documentation/CoreGraphics/erf(_:)) [`func erfc(CGFloat) -> CGFloat`](/documentation/CoreGraphics/erfc(_:)) [`func exp(CGFloat) -> CGFloat`](/documentation/CoreGraphics/exp(_:)) [`func exp2(CGFloat) -> CGFloat`](/documentation/CoreGraphics/exp2(_:)) [`func expm1(CGFloat) -> CGFloat`](/documentation/CoreGraphics/expm1(_:)) [`func fdim(CGFloat, CGFloat) -> CGFloat`](/documentation/CoreGraphics/fdim(_:_:)) [`func fmax(CGFloat, CGFloat) -> CGFloat`](/documentation/CoreGraphics/fmax(_:_:)) [`func fmin(CGFloat, CGFloat) -> CGFloat`](/documentation/CoreGraphics/fmin(_:_:)) [`func hypot(CGFloat, CGFloat) -> CGFloat`](/documentation/CoreGraphics/hypot(_:_:)) [`func ilogb(CGFloat) -> Int`](/documentation/CoreGraphics/ilogb(_:)) [`func CGColorSpaceCreateLinearized(CGColorSpace) -> CGColorSpace?`](/documentation/CoreGraphics/CGColorSpaceCreateLinearized(_:)) [`init?(src: CGColorSpace, dst: CGColorSpace)`](/documentation/CoreGraphics/CGColorConversionInfo/init(src:dst:)) Creates a conversion between two specified color spaces. [`func j0(CGFloat) -> CGFloat`](/documentation/CoreGraphics/j0(_:)) [`func j1(CGFloat) -> CGFloat`](/documentation/CoreGraphics/j1(_:)) [`func jn(Int, CGFloat) -> CGFloat`](/documentation/CoreGraphics/jn(_:_:)) [`func ldexp(CGFloat, Int) -> CGFloat`](/documentation/CoreGraphics/ldexp(_:_:)) [`func lgamma(CGFloat) -> (CGFloat, Int)`](/documentation/CoreGraphics/lgamma(_:)) [`func log(CGFloat) -> CGFloat`](/documentation/CoreGraphics/log(_:)) [`func log10(CGFloat) -> CGFloat`](/documentation/CoreGraphics/log10(_:)) [`func log1p(CGFloat) -> CGFloat`](/documentation/CoreGraphics/log1p(_:)) [`func log2(CGFloat) -> CGFloat`](/documentation/CoreGraphics/log2(_:)) [`func logb(CGFloat) -> CGFloat`](/documentation/CoreGraphics/logb(_:)) [`func nan(String) -> CGFloat`](/documentation/CoreGraphics/nan(_:)) [`func nearbyint(CGFloat) -> CGFloat`](/documentation/CoreGraphics/nearbyint(_:)) [`func nextafter(CGFloat, CGFloat) -> CGFloat`](/documentation/CoreGraphics/nextafter(_:_:)) [`func pow(CGFloat, CGFloat) -> CGFloat`](/documentation/CoreGraphics/pow(_:_:)) [`func remquo(CGFloat, CGFloat) -> (CGFloat, Int)`](/documentation/CoreGraphics/remquo(_:_:)) [`func rint(CGFloat) -> CGFloat`](/documentation/CoreGraphics/rint(_:)) [`func sin(CGFloat) -> CGFloat`](/documentation/CoreGraphics/sin(_:)) [`func sinh(CGFloat) -> CGFloat`](/documentation/CoreGraphics/sinh(_:)) [`func tan(CGFloat) -> CGFloat`](/documentation/CoreGraphics/tan(_:)) [`func tanh(CGFloat) -> CGFloat`](/documentation/CoreGraphics/tanh(_:)) [`func tgamma(CGFloat) -> CGFloat`](/documentation/CoreGraphics/tgamma(_:)) [`var localEventsSuppressionInterval: CFTimeInterval`](/documentation/CoreGraphics/CGEventSource/localEventsSuppressionInterval) Returns the interval that local hardware events may be suppressed following the posting of a Quartz event. [`var pixelHeight: Int`](/documentation/CoreGraphics/CGDisplayMode/pixelHeight) [`class var typeID: CFTypeID`](/documentation/CoreGraphics/CGColorConversionInfo/typeID) Returns the Core Foundation type identifier for a color conversion info data type. [`func y0(CGFloat) -> CGFloat`](/documentation/CoreGraphics/y0(_:)) [`func y1(CGFloat) -> CGFloat`](/documentation/CoreGraphics/y1(_:)) [`func yn(Int, CGFloat) -> CGFloat`](/documentation/CoreGraphics/yn(_:_:)) [`func CGAffineTransformMake(CGFloat, CGFloat, CGFloat, CGFloat, CGFloat, CGFloat) -> CGAffineTransform`](/documentation/CoreGraphics/CGAffineTransformMake(_:_:_:_:_:_:)) Returns an affine transformation matrix constructed from values you provide. [`extern CGColorConversionInfoRefCGColorConversionInfoCreateFromListWithArguments(CFDictionaryRef options, CGColorSpaceRef , CGColorConversionInfoTransformType , CGColorRenderingIntent , va_list );`](/documentation/CoreGraphics/CGColorConversionInfoCreateFromListWithArguments) [`func CGColorSpaceCopyBaseColorSpace(CGColorSpace) -> CGColorSpace`](/documentation/CoreGraphics/CGColorSpaceCopyBaseColorSpace(_:)) [`func CGColorSpaceCreateCopyWithStandardRange(CGColorSpace) -> CGColorSpace`](/documentation/CoreGraphics/CGColorSpaceCreateCopyWithStandardRange(_:)) [`func CGColorSpaceCreateExtended(CGColorSpace) -> CGColorSpace?`](/documentation/CoreGraphics/CGColorSpaceCreateExtended(_:)) [`func CGColorSpaceCreateExtendedLinearized(CGColorSpace) -> CGColorSpace?`](/documentation/CoreGraphics/CGColorSpaceCreateExtendedLinearized(_:)) [`func CGColorSpaceCreateWithColorSyncProfile(ColorSyncProfile?, CFDictionary?) -> CGColorSpace?`](/documentation/CoreGraphics/CGColorSpaceCreateWithColorSyncProfile(_:_:)) [`extern CFStringRefCGColorSpaceGetName(CGColorSpaceRef space);`](/documentation/CoreGraphics/CGColorSpaceGetName) [`func CGColorSpaceIsHLGBased(CGColorSpace) -> Bool`](/documentation/CoreGraphics/CGColorSpaceIsHLGBased(_:)) [`func CGColorSpaceIsPQBased(CGColorSpace) -> Bool`](/documentation/CoreGraphics/CGColorSpaceIsPQBased(_:)) [`func CGColorSpaceUsesITUR_2100TF(CGColorSpace) -> Bool`](/documentation/CoreGraphics/CGColorSpaceUsesITUR_2100TF(_:)) [`func CGContextDrawConicGradient(CGContext, CGGradient?, CGPoint, CGFloat)`](/documentation/CoreGraphics/CGContextDrawConicGradient(_:_:_:_:)) [`extern bool CGContextDrawImageApplyingToneMapping(CGContextRef c, CGRect r, CGImageRef image, CGToneMapping method, CFDictionaryRef options);`](/documentation/CoreGraphics/CGContextDrawImageApplyingToneMapping) [`func CGContextGetEDRTargetHeadroom(CGContext) -> Float`](/documentation/CoreGraphics/CGContextGetEDRTargetHeadroom(_:)) [`func CGConvertColorDataWithFormat(Int, Int, UnsafeMutableRawPointer!, CGColorDataFormat, UnsafeMutableRawPointer!, CGColorDataFormat, CFDictionary!) -> Bool`](/documentation/CoreGraphics/CGConvertColorDataWithFormat(_:_:_:_:_:_:_:)) [`func CGEnableEventStateCombining(boolean_t) -> CGError`](/documentation/CoreGraphics/CGEnableEventStateCombining(_:)) Enables or disables the merging of actual key and mouse state with the application-specified state in a synthetic event. [`func CGErrorSetCallback(CGErrorCallback!)`](/documentation/CoreGraphics/CGErrorSetCallback(_:)) [`func CGImageCreateCopyWithContentHeadroom(Float, CGImage) -> CGImage?`](/documentation/CoreGraphics/CGImageCreateCopyWithContentHeadroom(_:_:)) [`func CGInhibitLocalEvents(boolean_t) -> CGError`](/documentation/CoreGraphics/CGInhibitLocalEvents(_:)) Turns off local hardware events in the current session. [`func CGPDFArrayApplyBlock(CGPDFArrayRef, (Int, CGPDFObjectRef, UnsafeMutableRawPointer?) -> Bool, UnsafeMutableRawPointer?)`](/documentation/CoreGraphics/CGPDFArrayApplyBlock(_:_:_:)) [`func CGPDFContextBeginTag(CGContext, CGPDFTagType, CFDictionary)`](/documentation/CoreGraphics/CGPDFContextBeginTag(_:_:_:)) [`func CGPDFContextEndTag(CGContext)`](/documentation/CoreGraphics/CGPDFContextEndTag(_:)) [`func CGPDFContextSetIDTree(CGContext, CGPDFDictionaryRef)`](/documentation/CoreGraphics/CGPDFContextSetIDTree(_:_:)) [`func CGPDFContextSetOutline(CGContext, CFDictionary?)`](/documentation/CoreGraphics/CGPDFContextSetOutline(_:_:)) [`func CGPDFContextSetPageTagStructureTree(CGContext, CFDictionary)`](/documentation/CoreGraphics/CGPDFContextSetPageTagStructureTree(_:_:)) [`func CGPDFContextSetParentTree(CGContext, CGPDFDictionaryRef)`](/documentation/CoreGraphics/CGPDFContextSetParentTree(_:_:)) [`func CGPDFDictionaryApplyBlock(CGPDFDictionaryRef, (UnsafePointer, CGPDFObjectRef, UnsafeMutableRawPointer?) -> Bool, UnsafeMutableRawPointer?)`](/documentation/CoreGraphics/CGPDFDictionaryApplyBlock(_:_:_:)) [`func CGPDFScannerStop(CGPDFScannerRef)`](/documentation/CoreGraphics/CGPDFScannerStop(_:)) [`func CGPointMake(CGFloat, CGFloat) -> CGPoint`](/documentation/CoreGraphics/CGPointMake(_:_:)) Returns a point with the specified coordinates. [`func CGPointMakeWithDictionaryRepresentation(CFDictionary, UnsafeMutablePointer) -> Bool`](/documentation/CoreGraphics/CGPointMakeWithDictionaryRepresentation(_:_:)) Fills in a point using the contents of the specified dictionary. [`func CGPostKeyboardEvent(CGCharCode, CGKeyCode, boolean_t) -> CGError`](/documentation/CoreGraphics/CGPostKeyboardEvent(_:_:_:)) Synthesizes a low-level keyboard event on the local machine. [`extern CGPathRefCGPathCreateCopyByFlattening(CGPathRef path, CGFloat flatteningThreshold);`](/documentation/CoreGraphics/CGPathCreateCopyByFlattening) [`extern CGPathRefCGPathCreateCopyByIntersectingPath(CGPathRef path, CGPathRef maskPath, bool evenOddFillRule);`](/documentation/CoreGraphics/CGPathCreateCopyByIntersectingPath) [`extern CGPathRefCGPathCreateCopyByNormalizing(CGPathRef path, bool evenOddFillRule);`](/documentation/CoreGraphics/CGPathCreateCopyByNormalizing) [`extern CGPathRefCGPathCreateCopyBySubtractingPath(CGPathRef path, CGPathRef maskPath, bool evenOddFillRule);`](/documentation/CoreGraphics/CGPathCreateCopyBySubtractingPath) [`extern CGPathRefCGPathCreateCopyBySymmetricDifferenceOfPath(CGPathRef path, CGPathRef maskPath, bool evenOddFillRule);`](/documentation/CoreGraphics/CGPathCreateCopyBySymmetricDifferenceOfPath) [`extern CGPathRefCGPathCreateCopyByUnioningPath(CGPathRef path, CGPathRef maskPath, bool evenOddFillRule);`](/documentation/CoreGraphics/CGPathCreateCopyByUnioningPath) [`extern CGPathRefCGPathCreateCopyOfLineByIntersectingPath(CGPathRef path, CGPathRef maskPath, bool evenOddFillRule);`](/documentation/CoreGraphics/CGPathCreateCopyOfLineByIntersectingPath) [`extern CGPathRefCGPathCreateCopyOfLineBySubtractingPath(CGPathRef path, CGPathRef maskPath, bool evenOddFillRule);`](/documentation/CoreGraphics/CGPathCreateCopyOfLineBySubtractingPath) [`extern CFArrayRefCGPathCreateSeparateComponents(CGPathRef path, bool evenOddFillRule);`](/documentation/CoreGraphics/CGPathCreateSeparateComponents) [`extern bool CGPathIntersectsPath(CGPathRef path1, CGPathRef path2, bool evenOddFillRule);`](/documentation/CoreGraphics/CGPathIntersectsPath) [`func CGPreflightListenEventAccess() -> Bool`](/documentation/CoreGraphics/CGPreflightListenEventAccess()) [`func CGPreflightPostEventAccess() -> Bool`](/documentation/CoreGraphics/CGPreflightPostEventAccess()) [`func CGPreflightScreenCaptureAccess() -> Bool`](/documentation/CoreGraphics/CGPreflightScreenCaptureAccess()) [`func CGRectMake(CGFloat, CGFloat, CGFloat, CGFloat) -> CGRect`](/documentation/CoreGraphics/CGRectMake(_:_:_:_:)) Returns a rectangle with the specified coordinate and size values. [`func CGRectMakeWithDictionaryRepresentation(CFDictionary, UnsafeMutablePointer) -> Bool`](/documentation/CoreGraphics/CGRectMakeWithDictionaryRepresentation(_:_:)) Fills in a rectangle using the contents of the specified dictionary. [`func CGRegisterScreenRefreshCallback(CGScreenRefreshCallback, UnsafeMutableRawPointer?) -> CGError`](/documentation/CoreGraphics/CGRegisterScreenRefreshCallback(_:_:)) Registers a callback function to be invoked when local displays are refreshed or modified. [`func CGReleaseScreenRefreshRects(UnsafeMutablePointer?)`](/documentation/CoreGraphics/CGReleaseScreenRefreshRects(_:)) Deallocates a list of rectangles that represent changed areas on local displays. [`func CGRequestListenEventAccess() -> Bool`](/documentation/CoreGraphics/CGRequestListenEventAccess()) [`func CGRequestPostEventAccess() -> Bool`](/documentation/CoreGraphics/CGRequestPostEventAccess()) [`func CGRequestScreenCaptureAccess() -> Bool`](/documentation/CoreGraphics/CGRequestScreenCaptureAccess()) [`func CGScreenRegisterMoveCallback(CGScreenUpdateMoveCallback, UnsafeMutableRawPointer?) -> CGError`](/documentation/CoreGraphics/CGScreenRegisterMoveCallback(_:_:)) Registers a callback function to be invoked when an area of the display is moved. [`func CGScreenUnregisterMoveCallback(CGScreenUpdateMoveCallback, UnsafeMutableRawPointer?)`](/documentation/CoreGraphics/CGScreenUnregisterMoveCallback(_:_:)) Removes a previously registered callback function invoked when an area of the display is moved. [`func CGSetLocalEventsFilterDuringSuppressionState(CGEventFilterMask, CGEventSuppressionState) -> CGError`](/documentation/CoreGraphics/CGSetLocalEventsFilterDuringSuppressionState(_:_:)) Filters local hardware events from the keyboard and mouse during the short interval after a synthetic event is posted. [`func CGSetLocalEventsSuppressionInterval(CFTimeInterval) -> CGError`](/documentation/CoreGraphics/CGSetLocalEventsSuppressionInterval(_:)) Sets the time interval in seconds that local hardware events are suppressed after posting a synthetic event. [`func CGSizeMake(CGFloat, CGFloat) -> CGSize`](/documentation/CoreGraphics/CGSizeMake(_:_:)) Returns a size with the specified dimension values. [`func CGSizeMakeWithDictionaryRepresentation(CFDictionary, UnsafeMutablePointer) -> Bool`](/documentation/CoreGraphics/CGSizeMakeWithDictionaryRepresentation(_:_:)) Fills in a size using the contents of the specified dictionary. [`func CGUnregisterScreenRefreshCallback(CGScreenRefreshCallback, UnsafeMutableRawPointer?)`](/documentation/CoreGraphics/CGUnregisterScreenRefreshCallback(_:_:)) Removes a previously registered callback function invoked when local displays are refreshed or modified. [`func CGVectorMake(CGFloat, CGFloat) -> CGVector`](/documentation/CoreGraphics/CGVectorMake(_:_:)) Returns a vector with the specified dimension values. [`func CGWaitForScreenRefreshRects(UnsafeMutablePointer?>?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGWaitForScreenRefreshRects(_:_:)) Waits for screen refresh operations. [`func CGWaitForScreenUpdateRects(CGScreenUpdateOperation, UnsafeMutablePointer?, UnsafeMutablePointer?>?, UnsafeMutablePointer?, UnsafeMutablePointer?) -> CGError`](/documentation/CoreGraphics/CGWaitForScreenUpdateRects(_:_:_:_:_:)) Waits for screen update operations. [`var accessPermissions: CGPDFAccessPermissions`](/documentation/CoreGraphics/CGPDFDocument/accessPermissions) [`func applyWithBlock((UnsafePointer) -> Void)`](/documentation/CoreGraphics/CGPath/applyWithBlock(_:)) [`var byteOrderInfo: CGImageByteOrderInfo`](/documentation/CoreGraphics/CGImage/byteOrderInfo) [`var containsImageSpecificToneMappingMetadata: Bool`](/documentation/CoreGraphics/CGImage/containsImageSpecificToneMappingMetadata) [`var contentHeadroom: Float`](/documentation/CoreGraphics/CGImage/contentHeadroom) [`func convert(width: Int, height: Int, to: UnsafeMutableRawPointer, format: CGColorBufferFormat, from: UnsafeRawPointer, format: CGColorBufferFormat, options: CFDictionary?) -> Bool`](/documentation/CoreGraphics/CGColorConversionInfo/convert(width:height:to:format:from:format:options:)) [`func copyPropertyList() -> CFPropertyList?`](/documentation/CoreGraphics/CGColorSpace/copyPropertyList()) Returns a copy of the color space’s properties. [`extern CGAffineTransformComponents CGAffineTransformDecompose(CGAffineTransform transform);`](/documentation/CoreGraphics/CGAffineTransformDecompose) [`var info: UnsafeMutableRawPointer?`](/documentation/CoreGraphics/CGDataProvider/info) [`extern CGAffineTransform CGAffineTransformMakeWithComponents(CGAffineTransformComponents components);`](/documentation/CoreGraphics/CGAffineTransformMakeWithComponents) [`init(genericGrayGamma2_2Gray: CGFloat, alpha: CGFloat)`](/documentation/CoreGraphics/CGColor/init(genericGrayGamma2_2Gray:alpha:)) Creates a color in the Generic gray color space with a gamma ramp of 2.2. [`init?(headroom: Float, width: Int, height: Int, bitsPerComponent: Int, bitsPerPixel: Int, bytesPerRow: Int, space: CGColorSpace, bitmapInfo: CGBitmapInfo, provider: CGDataProvider, decode: UnsafePointer?, shouldInterpolate: Bool, intent: CGColorRenderingIntent)`](/documentation/CoreGraphics/CGImage/init(headroom:width:height:bitsPerComponent:bitsPerPixel:bytesPerRow:space:bitmapInfo:provider:decode:shouldInterpolate:intent:)) [`init?(iccData: CFTypeRef)`](/documentation/CoreGraphics/CGColorSpace/init(iccData:)) Creates an ICC-based color space using the ICC profile contained in the specified data. [`init?(optionsSrc: CGColorSpace, dst: CGColorSpace, options: CFDictionary?)`](/documentation/CoreGraphics/CGColorConversionInfo/init(optionsSrc:dst:options:)) [`init?(propertyListPlist: CFPropertyList)`](/documentation/CoreGraphics/CGColorSpace/init(propertyListPlist:)) Creates a color space from a property list. [`init?(scrollWheelEvent2Source: CGEventSource?, units: CGScrollEventUnit, wheelCount: UInt32, wheel1: Int32, wheel2: Int32, wheel3: Int32)`](/documentation/CoreGraphics/CGEvent/init(scrollWheelEvent2Source:units:wheelCount:wheel1:wheel2:wheel3:)) [`init?(src: CGColorSpace, srcHeadroom: Float, dst: CGColorSpace, dstHeadroom: Float, toneMapping: CGToneMapping, options: CFDictionary?, UnsafeMutablePointer?>?)`](/documentation/CoreGraphics/CGColorConversionInfo/init(src:srcHeadroom:dst:dstHeadroom:toneMapping:options:_:)) [`func isHDR() -> Bool`](/documentation/CoreGraphics/CGColorSpace/isHDR()) [`var name: UnsafePointer`](/documentation/CoreGraphics/CGPDFTagType/name) [`var outline: CFDictionary?`](/documentation/CoreGraphics/CGPDFDocument/outline) [`var pixelFormatInfo: CGImagePixelFormatInfo`](/documentation/CoreGraphics/CGImage/pixelFormatInfo) [`func resetClip()`](/documentation/CoreGraphics/CGContext/resetClip()) [`func setEDRTargetHeadroom(Float) -> Bool`](/documentation/CoreGraphics/CGContext/setEDRTargetHeadroom(_:)) [`var shouldToneMap: Bool`](/documentation/CoreGraphics/CGImage/shouldToneMap) [`func CGColorSpaceUsesExtendedRange(CGColorSpace) -> Bool`](/documentation/CoreGraphics/CGColorSpaceUsesExtendedRange(_:)) --- Copyright © 2026 Apple Inc. 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