CGOpenGLDisplayMask
A bitmask used in OpenGL to specify a set of attached displays.
Declaration
typealias CGOpenGLDisplayMask = UInt32Discussion
In macOS, OpenGL can provide information about the capabilities of the hardware renderers driving a specified set of displays. A 32-bit mask is used to specify the displays—each bit in the mask represents a single display.
To learn how to find the mask bit that corresponds to a given display, see the function CGDisplayIDToOpenGLDisplayMask(_:).
See Also
Data Types
CGButtonCountCGCharCodeCGDirectDisplayIDCGDisplayBlendFractionCGDisplayConfigRefCGDisplayCountCGDisplayErrCGDisplayFadeIntervalCGDisplayFadeReservationTokenCGDisplayModeCGDisplayReconfigurationCallBackCGDisplayReservationIntervalCGDisplayStreamCGDisplayStreamFrameAvailableHandlerCGDisplayStreamUpdate