2 files changed, 6 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Control.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Control.java
index f1737326b5..bff4266e0c 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Control.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Control.java
@@ -2489,6 +2489,7 @@ public boolean setParent (Composite parent) {
 	if (parent == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
 	if (parent.isDisposed()) SWT.error (SWT.ERROR_INVALID_ARGUMENT);
 	if (this.parent == parent) return true;
+	if (!isReparentable ()) return false;
 	releaseChild ();
 	Shell newShell = parent.getShell (), oldShell = getShell ();
 	Decorations newDecorations = parent.menuShell (), oldDecorations = menuShell ();
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Decorations.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Decorations.java
index c81bbfb017..81873f71ae 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Decorations.java
+++ b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Decorations.java
@@ -342,6 +342,11 @@ public String getText () {
 	return text;
 }
 
+public boolean isReparentable () {
+	checkWidget ();
+	return false;
+}
+
 boolean isTabGroup () {
 	return true;
 }