com.sun.jna.platform.win32.Ole32Util Maven / Gradle / Ivy
/* Copyright (c) 2010 Daniel Doubrovkine, All Rights Reserved
*
* The contents of this file is dual-licensed under 2
* alternative Open Source/Free licenses: LGPL 2.1 or later and
* Apache License 2.0. (starting with JNA version 4.0.0).
*
* You can freely decide which license you want to apply to
* the project.
*
* You may obtain a copy of the LGPL License at:
*
* http://www.gnu.org/licenses/licenses.html
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "LGPL2.1".
*
* You may obtain a copy of the Apache License at:
*
* http://www.apache.org/licenses/
*
* A copy is also included in the downloadable source code package
* containing JNA, in file "AL2.0".
*/
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;
}
}