oilmods.h

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// $Id: oilmods.h 751 2006-03-31 15:43:49Z alex $
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
                    Copyright (C) 1993-2006 Xara Group Ltd.
       Copyright on certain contributions may be held in joint with their
              respective authors. See AUTHORS file for details.

LICENSE TO USE AND MODIFY SOFTWARE
----------------------------------

This file is part of Xara LX.

Xara LX is free software; you can redistribute it and/or modify it
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by the Free Software Foundation.

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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.

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distribution); if not, write to the Free Software Foundation, Inc., 51
Franklin St, Fifth Floor, Boston, MA  02110-1301 USA


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Conditional upon your continuing compliance with the GNU General Public
License described above, Xara Group Ltd grants to you certain additional
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The additional rights are to use, modify, and distribute the software
together with the wxWidgets library, the wxXtra library, and the "CDraw"
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=================================XARAHEADEREND============================
 */

// OIL specific Module support routines supplied for the Kernel

/********************************************************************************************

>   class OILModule

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    30/6/93
    Purpose:    This class hides the mechanism of loading modules via whatever OS calls
                are required.  For example, under Windows it loads DLLs and interrogates
                them, whereas on the Arc something quite different could happen.
                It also provides a link between a kernel 'Module' item and the OIL
                transport mechanism used to load it.

********************************************************************************************/

class OILModule
{
public:
    OILModule();
    HINSTANCE GetInstance();
    
    static BOOL Init();
    static void Deinit();
    static void DeinitExtras();
    static HINSTANCE GetInstance(UINT32 ModuleID);

private:
#ifdef _AFXDLL
    static void EnumerateModulesFromDLL(const char *Filename);
#endif
    HINSTANCE hInstance;
};

// The following is unfortunately required in this header file (see winoil\killdlls.cpp).

const UINT32 MAX_DLLS = 10;

extern HINSTANCE DLLs[MAX_DLLS];

extern UINT32 DLLCount;

// these are indices into the ExtraDLLs array below and are so we can close any
// dynamically bound DLLs at exit time. They are zero if no DLL loaded.
enum ExtraDLLenum
{
    GDI_Util_DLL = 0,
    Ctl3d_DLL,
    Slider_Control_DLL,
    BitmapButton_Control_DLL,
    TabBox_Control_DLL,
    CheckList_Control_DLL,
    DDeck_Control_DLL,
    Grid_Control_DLL,
    Text3d_Control_DLL,
    Redraw_Control_DLL,
    WinG_DLL,
    ATM_Util_DLL,
    Resources_DLL,
    // more here
    Extra_DLL_Count
};

extern HINSTANCE ExtraDLLs[Extra_DLL_Count];

    

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