[dotnet] AppKit pinvokes (#17644)

src/AppKit/NSAccessibility.cs

@@ -19,6 +19,10 @@ using ObjCRuntime;
 
 #nullable enable
 
+#if !NET
+using NativeHandle = System.IntPtr;
+#endif
+
 namespace AppKit {
 	public partial interface INSAccessibility { }
 
@@ -35,11 +39,11 @@ namespace AppKit {
 		[Mac (10, 10)]
 #endif
 		[DllImport (Constants.AppKitLibrary)]
-		static extern CGRect NSAccessibilityFrameInView (NSView parentView, CGRect frame);
+		static extern CGRect NSAccessibilityFrameInView (NativeHandle parentView, CGRect frame);
 
 		public static CGRect GetFrameInView (NSView parentView, CGRect frame)
 		{
-			return NSAccessibilityFrameInView (parentView, frame);
+			return NSAccessibilityFrameInView (parentView.GetHandle (), frame);
 		}
 
 #if NET
@@ -48,11 +52,11 @@ namespace AppKit {
 		[Mac (10, 10)]
 #endif
 		[DllImport (Constants.AppKitLibrary)]
-		static extern CGPoint NSAccessibilityPointInView (NSView parentView, CGPoint point);
+		static extern CGPoint NSAccessibilityPointInView (NativeHandle parentView, CGPoint point);
 
 		public static CGPoint GetPointInView (NSView parentView, CGPoint point)
 		{
-			return NSAccessibilityPointInView (parentView, point);
+			return NSAccessibilityPointInView (parentView.GetHandle (), point);
 		}
 
 		[DllImport (Constants.AppKitLibrary)]

src/AppKit/NSApplication.cs

@@ -47,7 +47,7 @@ namespace AppKit {
 		private static Thread? mainThread;
 
 		[DllImport (Constants.AppKitLibrary)]
-		extern static int /* int */ NSApplicationMain (int /* int */ argc, string [] argv);
+		extern static int /* int */ NSApplicationMain (int /* int */ argc, IntPtr argv);
 
 		static bool initialized;
 
@@ -115,7 +115,10 @@ namespace AppKit {
 			// with a call to Main, but this guarantees the right thread.
 			NSApplication.mainThread = Thread.CurrentThread;
 
-			NSApplicationMain (args.Length, args);
+			var argsPtr = TransientString.AllocStringArray (args);
+			NSApplicationMain (args.Length, argsPtr);
+			if (argsPtr != IntPtr.Zero)
+				TransientString.FreeStringArray (argsPtr, args.Length);
 		}
 
 		public static void EnsureUIThread ()

src/AppKit/NSGraphics.cs

@@ -30,6 +30,10 @@ using ObjCRuntime;
 using Foundation;
 using CoreGraphics;
 
+#if !NET
+using NativeHandle = System.IntPtr;
+#endif
+
 #nullable enable
 
 namespace AppKit {
@@ -152,11 +156,11 @@ namespace AppKit {
 		}
 
 		[DllImport (Constants.AppKitLibrary, EntryPoint = "NSShowAnimationEffect")]
-		extern static void NSShowAnimationEffect (nuint animationEffect, CGPoint centerLocation, CGSize size, NSObject animationDelegate, Selector didEndSelector, IntPtr contextInfo);
+		extern static void NSShowAnimationEffect (nuint animationEffect, CGPoint centerLocation, CGSize size, NativeHandle animationDelegate, NativeHandle didEndSelector, IntPtr contextInfo);
 
 		public static void ShowAnimationEffect (NSAnimationEffect animationEffect, CGPoint centerLocation, CGSize size, NSObject animationDelegate, Selector didEndSelector, IntPtr contextInfo)
 		{
-			NSShowAnimationEffect ((nuint) (ulong) animationEffect, centerLocation, size, animationDelegate, didEndSelector, contextInfo);
+			NSShowAnimationEffect ((nuint) (ulong) animationEffect, centerLocation, size, animationDelegate.GetHandle (), didEndSelector.Handle, contextInfo);
 		}
 
 		public static void ShowAnimationEffect (NSAnimationEffect animationEffect, CGPoint centerLocation, CGSize size, Action endedCallback)