CGDisplayIsMain(_:)
Returns a Boolean value indicating whether a display is the main display.
Declaration
func CGDisplayIsMain(_ display: CGDirectDisplayID) -> boolean_tParameters
- display:
The identifier of the display to be accessed.
Return Value
If true, the specified display is currently the main display; otherwise, false.
Discussion
For information about the characteristics of a main display, see CGMainDisplayID().
See Also
Functions
CGAcquireDisplayFadeReservation(_:_:)CGAssociateMouseAndMouseCursorPosition(_:)CGBeginDisplayConfiguration(_:)CGCancelDisplayConfiguration(_:)CGCaptureAllDisplays()CGCaptureAllDisplaysWithOptions(_:)CGCompleteDisplayConfiguration(_:_:)CGConfigureDisplayFadeEffect(_:_:_:_:_:_:)CGConfigureDisplayMirrorOfDisplay(_:_:_:)CGConfigureDisplayMode(_:_:_:)CGConfigureDisplayOrigin(_:_:_:_:)CGConfigureDisplayStereoOperation(_:_:_:_:)CGConfigureDisplayWithDisplayMode(_:_:_:_:)CGCursorIsDrawnInFramebuffer()CGCursorIsVisible()