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git-svn-id: svn+ssh://svn.savannah.nongnu.org/linphone/trunk@391 3f6dc0c8-ddfe-455d-9043-3cd528dc4637
73 lines
1.9 KiB
C++
73 lines
1.9 KiB
C++
/* HornetsEye - Computer Vision with Ruby
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Copyright (C) 2006, 2007 Jan Wedekind
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef HORNETSEYE_COMPTR_HH
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#define HORNETSEYE_COMPTR_HH
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef WIN32
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#include <cassert>
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#include <objbase.h>
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#include "error.hh"
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namespace Hornetseye {
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template< class I >
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class ComPtr
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{
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public:
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ComPtr(void): m_i(NULL) {}
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ComPtr( const ComPtr< I > &ptr ): m_i(ptr.get()) {
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if ( m_i != NULL ) m_i->AddRef();
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}
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~ComPtr(void) { reset(); }
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ComPtr< I > &operator=( const ComPtr< I > &other ) {
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reset();
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m_i = other.get();
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if ( m_i != NULL ) m_i->AddRef();
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return *this;
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};
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I **operator&(void) {
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reset();
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return &m_i;
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}
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void coCreateInstance( REFCLSID clsid, REFIID iid, const char *errorText )
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throw (Error) {
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reset();
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COERRORMACRO( CoCreateInstance( clsid, NULL, CLSCTX_INPROC, iid,
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(void **)&m_i ), Error, , errorText );
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}
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I *get(void) const { return m_i; }
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I &operator*(void) {
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assert( m_i != NULL );
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return *m_i;
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}
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I *operator->(void) {
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assert( m_i != NULL );
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return m_i;
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}
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void reset(void) { if ( m_i != NULL ) { m_i->Release(); m_i = NULL; } }
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protected:
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I *m_i;
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};
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};
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#endif
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#endif
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