src/windows/native/sun/windows/awt_InputMethod.cpp

*** 494,503 ****
--- 494,520 ----
      return locales;
  
      CATCH_BAD_ALLOC_RET(NULL);
  }
  
+ /*
+  * Class:     sun_awt_windows_WInputMethod
+  * Method:    isCompositionStringAvailable
+  * Signature: (I)Z
+  */
+ JNIEXPORT jboolean JNICALL Java_sun_awt_windows_WInputMethod_isCompositionStringAvailable
+   (JNIEnv *env, jobject self, jint context)
+ {
+     LONG length;
+     length = ImmGetCompositionString((HIMC)IntToPtr(context), GCS_COMPSTR, NULL, 0);
+     if (length > 0) {
+         return JNI_TRUE;
+     } else {
+         return JNI_FALSE;
+     }
+ }
+ 
  /**
   * Class:     sun_awt_windows_WInputMethod
   * Method:    getNativeIMMDescription
   * Signature: ()Ljava/lang/String;
   *