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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.internal.ole.win32;
import org.eclipse.swt.internal.win32.*;
public class IDispatch extends IUnknown
{
public IDispatch(int /*long*/ address) {
super(address);
}
public int GetIDsOfNames(GUID riid, String[] rgszNames, int cNames, int lcid, int[] rgDispId) {
char[] buffer;
int size = rgszNames.length;
// create an array to hold the addresses
int /*long*/ hHeap = OS.GetProcessHeap();
int /*long*/ ppNames = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, size * OS.PTR_SIZEOF);
int /*long*/[] memTracker = new int /*long*/[size];
try {
// add the address of each string to the array
for (int i=0; i<size; i++){
// create a null terminated array of char for each String
int nameSize = rgszNames[i].length();
buffer = new char[nameSize +1];
rgszNames[i].getChars(0, nameSize, buffer, 0);
// get the address of the start of the array of char
int /*long*/ pName = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, buffer.length * 2);
OS.MoveMemory(pName, buffer, buffer.length * 2);
// copy the address to the array of addresses
COM.MoveMemory(ppNames + OS.PTR_SIZEOF * i, new int /*long*/[]{pName}, OS.PTR_SIZEOF);
// keep track of the Global Memory so we can free it
memTracker[i] = pName;
}
return COM.VtblCall(5, address, new GUID(), ppNames, cNames, lcid, rgDispId);
} finally {
// free the memory
for (int i=0; i<memTracker.length; i++){
OS.HeapFree(hHeap, 0, memTracker[i]);
}
OS.HeapFree(hHeap, 0, ppNames);
}
}
public int GetTypeInfo(int iTInfo, int lcid, int /*long*/[] ppTInfo ){
return COM.VtblCall(4, address, iTInfo, lcid, ppTInfo);
}
public int GetTypeInfoCount(int[] pctinfo ){
return COM.VtblCall(3, address, pctinfo);
}
public int Invoke(int dispIdMember, GUID riid, int lcid, int dwFlags, DISPPARAMS pDispParams, int /*long*/ pVarResult, EXCEPINFO pExcepInfo, int[] pArgErr) {
return COM.VtblCall(6, address, dispIdMember, riid, lcid, dwFlags, pDispParams, pVarResult, pExcepInfo, pArgErr);
}
}
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