WindowsRegistry.java

/*
 * Copyright (c) 2002-2008 LWJGL Project
 * All rights reserved.
 *
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 *
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 *
 * * Redistributions in binary form must reproduce the above copyright
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 *   documentation and/or other materials provided with the distribution.
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 * * Neither the name of 'LWJGL' nor the names of
 *   its contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 */
package org.lwjgl.opengl;

/**
 * This is an interface to the windows registry
 * @author elias_naur
 */

import org.lwjgl.LWJGLException;
import org.lwjgl.Sys;

final class WindowsRegistry {
	static final int HKEY_CLASSES_ROOT = 1;
	static final int HKEY_CURRENT_USER = 2;
	static final int HKEY_LOCAL_MACHINE = 3;
	static final int HKEY_USERS = 4;

	static {
		Sys.initialize();
	}

	/**
	 * Query the registry value specified by the root key, subkey, value tuple
	 */
	static String queryRegistrationKey(int root_key, String subkey, String value) throws LWJGLException {
		switch (root_key) {
			case HKEY_CLASSES_ROOT:
			case HKEY_CURRENT_USER:
			case HKEY_LOCAL_MACHINE:
			case HKEY_USERS:
				break;
			default:
				throw new IllegalArgumentException("Invalid enum: " + root_key);
		}
		return nQueryRegistrationKey(root_key, subkey, value);
	}

	private static native String nQueryRegistrationKey(int root_key, String subkey, String value) throws LWJGLException;
}