/* Copyright (c) 2010 Daniel Doubrovkine, All Rights Reserved
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package com.sun.jna.platform.win32;
import com.sun.jna.Native;
import com.sun.jna.platform.win32.Guid.GUID;
import com.sun.jna.platform.win32.WinNT.HRESULT;
/**
* Ole32 Utility API.
* @author dblock[at]dblock.org
*/
public abstract class Ole32Util {
/**
* Convert a string to a GUID.
* @param guidString
* String representation of a GUID, including { }.
* @return
* A GUID.
*/
public static GUID getGUIDFromString(String guidString) {
GUID lpiid = new GUID();
HRESULT hr = Ole32.INSTANCE.IIDFromString(guidString, lpiid);
if (! hr.equals(W32Errors.S_OK)) {
throw new RuntimeException(hr.toString());
}
return lpiid;
}
/**
* Convert a GUID into a string.
* @param guid
* GUID.
* @return
* String representation of a GUID.
*/
public static String getStringFromGUID(GUID guid) {
GUID pguid = new GUID(guid.getPointer());
int max = 39;
char[] lpsz = new char[max];
int len = Ole32.INSTANCE.StringFromGUID2(pguid, lpsz, max);
if (len == 0) {
throw new RuntimeException("StringFromGUID2");
}
lpsz[len - 1] = 0;
return Native.toString(lpsz);
}
/**
* Generate a new GUID.
* @return
* New GUID.
*/
public static GUID generateGUID() {
GUID pguid = new GUID();
HRESULT hr = Ole32.INSTANCE.CoCreateGuid(pguid);
if (! hr.equals(W32Errors.S_OK)) {
throw new RuntimeException(hr.toString());
}
return pguid;
}
}