ScreenCaptureKit macOS xcode14.0 beta2

#ScreenCaptureKit.framework https://github.com/xamarin/xamarin-macios/pull/15647

diff -ruN /Applications/Xcode_14.0.0-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/ScreenCaptureKit.framework/Headers/SCStream.h /Applications/Xcode_14.0.0-beta2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/ScreenCaptureKit.framework/Headers/SCStream.h
--- /Applications/Xcode_14.0.0-beta.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/ScreenCaptureKit.framework/Headers/SCStream.h	2022-05-31 15:04:09.000000000 -0400
+++ /Applications/Xcode_14.0.0-beta2.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/ScreenCaptureKit.framework/Headers/SCStream.h	2022-06-17 11:26:38.000000000 -0400
@@ -148,7 +148,7 @@
 @property(nonatomic, assign) CGRect sourceRect;
 
 /*!
- @abstract SCStreamProperty that specifies that the display stream outputs the frame data into a subset of the output IOSurface object.  If not set then the entire output surface is used. The rectangle is specified in points in the surface’s coordinate system. Not used for independent window capture
+ @abstract SCStreamProperty that specifies that the display stream outputs the frame data into a subset of the output IOSurface object.  If not set then the entire output surface is used. The rectangle is specified in pixels in the surface’s coordinate system. Not used for independent window capture
  */
 @property(nonatomic, assign) CGRect destinationRect;
 
@@ -231,7 +231,7 @@
 
 /*!
  @key SCStreamFrameInfoDirtyRects
- @abstract The key for the CFDictionary attached to the CMSampleBuffer for an array of rectangles that is the union of both rectangles that were redrawn and rectangles that were moved. This is an array of CGRect in NSValue.
+ @abstract The key for the CFDictionary attached to the CMSampleBuffer for an array of rectangles that is the union of both rectangles that were redrawn and rectangles that were moved. This is an array of CGRect in NSValue. The CGRects elements are specified in pixels.
  */
 extern SCStreamFrameInfo const SCStreamFrameInfoDirtyRects API_AVAILABLE(macos(12.3));