added isStateKeySet for checking LOCK keys

src/java/org/lwjgl/input/Keyboard.java

@@ -397,6 +397,18 @@ public class Keyboard {
 		assert created : "The keyboard has not been created.";
 		return keyDownBuffer.get(key) != 0;
 	}
+  
+  /**
+   * Checks whether one of the state keys are "active"
+   * 
+   * @param key State key to test (KEY_CAPITAL | KEY_NUMLOCK | KEY_SYSRQ)
+   * @return true if state key is on
+   */
+  public static boolean isStateKeySet(int key) {
+    assert created : "The keyboard has not been created.";
+    return nisStateKeySet(key);
+  }
+  private static native boolean nisStateKeySet(int key);
 	
 	/**
 	 * Gets a key's name

src/java/org/lwjgl/test/input/KeyboardTest.java

@@ -133,7 +133,6 @@ public class KeyboardTest {
       Keyboard.read();
 
       int count = Keyboard.getNumKeyboardEvents();
-      System.out.println("Read " + count + " events");
       while(Keyboard.next()) {
         System.out.println("Checking key:" + Keyboard.getKeyName(Keyboard.key));
         if(Keyboard.key == Keyboard.KEY_ESCAPE) {
@@ -160,6 +159,17 @@ public class KeyboardTest {
           position.y -= 1;
         }
         
+        if(Keyboard.isStateKeySet(Keyboard.KEY_SCROLL)) {
+          System.out.println("SCROLL lock on");
+        }
+        
+        if(Keyboard.isStateKeySet(Keyboard.KEY_CAPITAL)) {
+          System.out.println("CAPS lock on");
+        }
+        
+        if(Keyboard.isStateKeySet(Keyboard.KEY_NUMLOCK)) {
+          System.out.println("NUM lock on");
+        }
       }
       if (count > 0) {
         System.out.println();

src/native/common/org_lwjgl_input_Keyboard.h

@@ -323,6 +323,14 @@ JNIEXPORT jboolean JNICALL Java_org_lwjgl_input_Keyboard_nEnableTranslation
  */
 JNIEXPORT jint JNICALL Java_org_lwjgl_input_Keyboard_nEnableBuffer
   (JNIEnv *, jclass);
+  
+/*
+ * Class:     org_lwjgl_input_Keyboard
+ * Method:    nisStateKeySet
+ * Signature: (I)Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_lwjgl_input_Keyboard_nisStateKeySet
+  (JNIEnv *, jclass, jint);
 
 #ifdef __cplusplus
 }

src/native/win32/org_lwjgl_input_Keyboard.cpp

@@ -331,3 +331,17 @@ JNIEXPORT jint JNICALL Java_org_lwjgl_input_Keyboard_nEnableBuffer
 	env->SetStaticObjectField(clazz, fid_readBuffer, newBuffer);
 	return KEYBOARD_BUFFER_SIZE;
 }
+
+/*
+ * Class:     org_lwjgl_input_Keyboard
+ * Method:    nisStateKeySet
+ * Signature: (I)Z
+ */
+JNIEXPORT jboolean JNICALL Java_org_lwjgl_input_Keyboard_nisStateKeySet(JNIEnv *env, jclass clazz, jint key)
+{
+  switch(key) {
+    case org_lwjgl_input_Keyboard_KEY_CAPITAL: return GetKeyState(VK_CAPITAL);
+    case org_lwjgl_input_Keyboard_KEY_NUMLOCK: return GetKeyState(VK_NUMLOCK);
+    case org_lwjgl_input_Keyboard_KEY_SCROLL: return GetKeyState(VK_SCROLL);    
+  }
+}