2 files changed, 11 insertions, 0 deletions
diff --git a/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java b/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
index 99fc9244e..4767dff18 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
@@ -59,6 +59,10 @@ public class OSXUtil {
         return false;
     }
     
+    public static boolean isNSView(long object) {
+        return isNSView0(object);
+    }
+    
     public static Point GetLocationOnScreen(long windowOrView, int src_x, int src_y) {
       return (Point) GetLocationOnScreen0(windowOrView, src_x, src_y);
     }
@@ -129,6 +133,7 @@ public class OSXUtil {
     } */
     
     private static native boolean initIDs0();
+    private static native boolean isNSView0(long object);
     private static native Object GetLocationOnScreen0(long windowOrView, int src_x, int src_y);
     private static native long CreateNSWindow0(int x, int y, int width, int height);
     private static native void DestroyNSWindow0(long nsWindow);
diff --git a/src/nativewindow/native/macosx/OSXmisc.m b/src/nativewindow/native/macosx/OSXmisc.m
index ebfefe345..37fa4c88f 100644
--- a/src/nativewindow/native/macosx/OSXmisc.m
+++ b/src/nativewindow/native/macosx/OSXmisc.m
@@ -92,6 +92,12 @@ Java_jogamp_nativewindow_macosx_OSXUtil_initIDs0(JNIEnv *env, jclass _unused) {
     return JNI_TRUE;
 }
 
+JNIEXPORT jboolean JNICALL 
+Java_jogamp_nativewindow_macosx_OSXUtil_isNSView0(JNIEnv *env, jclass _unused, jlong object) {
+    NSObject *nsObj = (NSObject*) (intptr_t) object;
+    return [nsObj isMemberOfClass:[NSView class]];
+}
+
 /*
  * Class:     Java_jogamp_nativewindow_macosx_OSXUtil
  * Method:    getLocationOnScreen0