1 files changed, 44 insertions, 14 deletions
diff --git a/make/config/nativewindow/win32-CustomJavaCode.java b/make/config/nativewindow/win32-CustomJavaCode.java
index 54a7fa53a..5d0c82998 100644
--- a/make/config/nativewindow/win32-CustomJavaCode.java
+++ b/make/config/nativewindow/win32-CustomJavaCode.java
@@ -1,28 +1,58 @@
   
-  private static final long hInstance;
+  private static final boolean DEBUG = Debug.debug("GDI");
 
-  static {
-    NWJNILibLoader.loadNativeWindow("win32");
-    hInstance = initIDs0();
-    if( 0 == hInstance ) {
-        throw new NativeWindowException("GDI: Could not initialized native stub");
+  private static final String dummyWindowClassNameBase = "_dummyWindow_clazz" ;
+  private static RegisteredClassFactory dummyWindowClassFactory;
+  private static boolean isInit = false;
+
+  private static native boolean initIDs0();
+  private static native long getDummyWndProc0();
+
+  public static synchronized void initSingleton(boolean firstX11ActionOnProcess) {
+    if(!isInit) {
+        NWJNILibLoader.loadNativeWindow("win32");
+        
+        if( !initIDs0() ) {
+            throw new NativeWindowException("GDI: Could not initialized native stub");
+        }
+
+        if(DEBUG) {
+            System.out.println("GDI.isFirstX11ActionOnProcess: "+firstX11ActionOnProcess);
+        }
+
+        dummyWindowClassFactory = new RegisteredClassFactory(dummyWindowClassNameBase, getDummyWndProc0());
+        isInit = true;
     }
   }
 
-  public static synchronized void initSingleton() {
-  }
-  private static native long initIDs0();
+  private static RegisteredClass dummyWindowClass = null;
+  private static Object dummyWindowSync = new Object();
 
-  public static long getModuleHandle() {
-    return hInstance;
+  public static long CreateDummyWindow(int x, int y, int width, int height) {
+      synchronized(dummyWindowSync) {
+          dummyWindowClass = dummyWindowClassFactory.getSharedClass();
+          return CreateDummyWindow0(dummyWindowClass.getHandle(), dummyWindowClass.getName(), dummyWindowClass.getName(), x, y, width, height);
+      }
   }
 
-  public static long CreateDummyWindow(int x, int y, int width, int height) {
-      return CreateDummyWindow0(getModuleHandle(), x, y, width, height);
+  public static boolean DestroyDummyWindow(long hwnd) {
+      boolean res;
+      synchronized(dummyWindowSync) {
+          if( null == dummyWindowClass ) {
+              throw new InternalError("GDI Error ("+dummyWindowClassFactory.getSharedRefCount()+"): SharedClass is null");
+          }
+          res = DestroyWindow(hwnd);
+          dummyWindowClassFactory.releaseSharedClass();
+      }
+      return res;
   }
 
   public static Point GetRelativeLocation(long src_win, long dest_win, int src_x, int src_y) {
-    return (Point) GetRelativeLocation0(src_win, dest_win, src_x, src_y);
+      return (Point) GetRelativeLocation0(src_win, dest_win, src_x, src_y);
   }
   private static native Object GetRelativeLocation0(long src_win, long dest_win, int src_x, int src_y);
 
+  public static native boolean CreateWindowClass(long hInstance, String clazzName, long wndProc);
+  public static native boolean DestroyWindowClass(long hInstance, String className);
+  static native long CreateDummyWindow0(long hInstance, String className, String windowName, int x, int y, int width, int height);
+