107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
/*
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* Copyright (c) 1999-2004 Sourceforge JACOB Project.
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* All rights reserved. Originator: Dan Adler (http://danadler.com).
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* Get more information about JACOB at http://sourceforge.net/projects/jacob-project
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "stdafx.h"
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#include <objbase.h>
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#include "ComThread.h"
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// Win32 support for Ole Automation
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#include <wchar.h>
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#include <string.h>
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#include <atlbase.h>
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#include <oleauto.h>
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#include <olectl.h>
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#include "util.h"
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extern "C"
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{
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// extract a IStream from a jobject
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IStream *extractStream(JNIEnv *env, jobject arg)
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{
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jclass argClass = env->GetObjectClass(arg);
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jfieldID ajf = env->GetFieldID( argClass, "m_pStream", "J");
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jlong anum = env->GetLongField(arg, ajf);
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IStream *v = (IStream *)anum;
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return v;
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}
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JNIEXPORT void JNICALL Java_com_jacob_com_DispatchProxy_MarshalIntoStream
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(JNIEnv *env, jobject _this, jobject disp)
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{
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IDispatch *pIDispatch = extractDispatch(env, disp);
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if (!pIDispatch) return;
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IStream *ps; // this is the stream we will marshall into
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HRESULT hr = CoMarshalInterThreadInterfaceInStream(
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IID_IDispatch, pIDispatch, &ps);
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if (!SUCCEEDED(hr))
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{
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ThrowComFail(env, "Could not Marshal Dispatch into IStream", hr);
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return;
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}
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// store the stream pointer on the object
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jclass argClass = env->GetObjectClass(_this);
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jfieldID ajf = env->GetFieldID( argClass, "m_pStream", "J");
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env->SetLongField(_this, ajf, (jlong)ps);
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}
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JNIEXPORT jobject JNICALL Java_com_jacob_com_DispatchProxy_MarshalFromStream
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(JNIEnv *env, jobject _this)
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{
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IStream *ps = extractStream(env, _this);
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if (!ps)
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{
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ThrowComFail(env, "Could not get IStream from DispatchProxy", -1);
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return NULL;
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}
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IDispatch *pD;
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HRESULT hr = CoGetInterfaceAndReleaseStream(ps, IID_IDispatch, (void **)&pD);
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// zero out the stream pointer on the object
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// since the stream can only be read once
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jclass argClass = env->GetObjectClass(_this);
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jfieldID ajf = env->GetFieldID( argClass, "m_pStream", "J");
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env->SetLongField(_this, ajf, 0ll);
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if (!SUCCEEDED(hr))
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{
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ThrowComFail(env, "Could not Marshal Dispatch from IStream", hr);
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return NULL;
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}
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jclass autoClass = env->FindClass("com/jacob/com/Dispatch");
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jmethodID autoCons = env->GetMethodID(autoClass, "<init>", "(J)V");
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// construct a Dispatch object to return
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// I am copying the pointer to java
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if (pD) pD->AddRef();
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jobject newAuto = env->NewObject(autoClass, autoCons, pD);
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return newAuto;
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}
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JNIEXPORT void JNICALL Java_com_jacob_com_DispatchProxy_release
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(JNIEnv *env, jobject _this)
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{
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IStream *ps = extractStream(env, _this);
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if (ps) {
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ps->Release();
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jclass argClass = env->GetObjectClass(_this);
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jfieldID ajf = env->GetFieldID( argClass, "m_pStream", "J");
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env->SetLongField(_this, ajf, 0ll);
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}
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}
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}
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