/* Copyright (c) 2013 Tobias Wolf, 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.COM;
import com.sun.jna.Function;
import com.sun.jna.Pointer;
import com.sun.jna.PointerType;
public abstract class COMInvoker extends PointerType {
protected int _invokeNativeInt(int vtableId, Object[] args) {
Pointer vptr = this.getPointer().getPointer(0);
// we take the vtable id and multiply with the pointer size (4 bytes on
// 32bit OS)
Function func = Function.getFunction(vptr.getPointer(vtableId
* Pointer.SIZE));
return func.invokeInt(args);
}
protected Object _invokeNativeObject(int vtableId, Object[] args,
Class returnType) {
Pointer vptr = this.getPointer().getPointer(0);
// we take the vtable id and multiply with the pointer size (4 bytes on
// 32bit OS)
Function func = Function.getFunction(vptr.getPointer(vtableId
* Pointer.SIZE));
return func.invoke(returnType, args);
}
protected void _invokeNativeVoid(int vtableId, Object[] args) {
Pointer vptr = this.getPointer().getPointer(0);
// we take the vtable id and multiply with the pointer size (4 bytes on
// 32bit OS)
Function func = Function.getFunction(vptr.getPointer(vtableId
* Pointer.SIZE));
func.invokeVoid(args);
}
}