71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
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// low-level support for the add-on services
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// this may be superceeded if the add-on services go to ocxs
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#include "stdafx.h"
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#include "keyobjs.h"
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#include "addons.h"
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//----------------------------------------------------------------
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// construction
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//----------------------------------------------------------------
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CAddOnService::CAddOnService() :
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m_library( NULL ),
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m_proc( NULL )
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{;}
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//----------------------------------------------------------------
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// destruction
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//----------------------------------------------------------------
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CAddOnService::~CAddOnService()
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{
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// free the library if it has been loaded
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if ( m_library )
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FreeLibrary( m_library );
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m_library = NULL;
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}
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//----------------------------------------------------------------
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// Initialize the service. Loads the dll and makes sure
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// the callback we need is there
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//----------------------------------------------------------------
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BOOL CAddOnService::FInitializeAddOnService( CString &szName )
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{
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// load the library module
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m_library = LoadLibrary( szName );
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DWORD err = GetLastError();
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// did we successfully load the library?
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if ( !m_library ) return FALSE;
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// get the main procedure address
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m_proc = (LOADPROC)GetProcAddress( m_library, "LoadService" );
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// did we successfully load the procedure address?
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if ( !m_proc )
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{
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FreeLibrary( m_library );
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m_library = NULL;
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return FALSE;
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}
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// success!
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return TRUE;
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}
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//----------------------------------------------------------------
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// call into the dll to create a new service object that
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// gets connected to a machine object
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//----------------------------------------------------------------
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BOOL CAddOnService::LoadService( CMachine* pMachine )
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{
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ASSERT( m_library );
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ASSERT( m_proc );
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// call into the dll to load a service object into the machine object
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return (*m_proc)( pMachine );
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}
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