Put getClipboard back.

src/java/org/lwjgl/Sys.java

@@ -259,5 +259,13 @@ public final class Sys {
 	 * Where necessary, we use a native implementation of openURL.
 	 */
 	private static native void nOpenURL(String url);
+
+	/**
+	 * Get the contents of the system clipboard. The system might not have a clipboard
+	 * (particularly if it doesn't even have a keyboard) in which case we return null.
+	 * Otherwise we return a String, which may be the empty string "".
+	 * @return a String, or null if there is no system clipboard.
+	 */
+	public static native String getClipboard();
 		
 } 

src/native/common/org_lwjgl_Sys.h

@@ -76,6 +76,9 @@ JNIEXPORT void JNICALL Java_org_lwjgl_Sys_nOpenURL
   (JNIEnv *, jclass, jstring);
 
 
+JNIEXPORT jstring JNICALL Java_org_lwjgl_Sys_getClipboard
+  (JNIEnv *, jclass);
+
 #ifdef __cplusplus
 }
 #endif

src/native/linux/org_lwjgl_Sys.cpp

@@ -167,3 +167,8 @@ JNIEXPORT void JNICALL Java_org_lwjgl_Sys_nOpenURL
 }
 
 
+JNIEXPORT jstring JNICALL Java_org_lwjgl_Sys_getClipboard
+  (JNIEnv * env, jclass clazz)
+{
+	return NULL;
+}

src/native/win32/org_lwjgl_Sys.cpp

@@ -177,3 +177,8 @@ JNIEXPORT void JNICALL Java_org_lwjgl_Sys_nOpenURL
 }
 
 
+JNIEXPORT jstring JNICALL Java_org_lwjgl_Sys_getClipboard
+  (JNIEnv * env, jclass clazz)
+{
+	return NULL;
+}