CGDisplayRotation(_:)

Declaration

func CGDisplayRotation(_ display: CGDirectDisplayID) -> Double

Parameters

• display:

  The identifier of the display to be accessed.

Return Value

The rotation angle of the display in degrees, or 0 if the display is not valid.

Discussion

This function returns the rotation angle of a display in a clockwise direction. For example, if the specified display is rotated clockwise 90 degrees, then this function returns 90.0. After a 90-degree clockwise rotation, the physical bottom of the display is on the left side and the physical top is on the right side.

See Also

Functions

• CGAcquireDisplayFadeReservation(_:_:)
• CGAssociateMouseAndMouseCursorPosition(_:)
• CGBeginDisplayConfiguration(_:)
• CGCancelDisplayConfiguration(_:)
• CGCaptureAllDisplays()
• CGCaptureAllDisplaysWithOptions(_:)
• CGCompleteDisplayConfiguration(_:_:)
• CGConfigureDisplayFadeEffect(_:_:_:_:_:_:)
• CGConfigureDisplayMirrorOfDisplay(_:_:_:)
• CGConfigureDisplayMode(_:_:_:)
• CGConfigureDisplayOrigin(_:_:_:_:)
• CGConfigureDisplayStereoOperation(_:_:_:_:)
• CGConfigureDisplayWithDisplayMode(_:_:_:_:)
• CGCursorIsDrawnInFramebuffer()
• CGCursorIsVisible()