wxWidgets/include/wx/dynlib.h

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/////////////////////////////////////////////////////////////////////////////
// Name: dynlib.cpp
// Purpose: Dynamic library management
// Author: Guilhem Lavaux
// Modified by:
// Created: 20/07/98
// RCS-ID: $Id$
// Copyright: (c) Guilhem Lavaux
// Licence: wxWindows license
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_DYNLIB_H__
#define _WX_DYNLIB_H__
#ifdef __GNUG__
#pragma interface
#endif
#include <wx/setup.h>
#if wxUSE_DYNLIB_CLASS
#include <wx/string.h>
#include <wx/list.h>
#include <wx/hash.h>
// this is normally done by configure, but I leave it here for now...
#if defined(__UNIX__) && !(defined(HAVE_DLOPEN) || defined(HAVE_SHL_LOAD))
#if defined(__LINUX__) || defined(__SOLARIS__) || defined(__SUNOS__) || defined(__FREEBSD__)
#define HAVE_DLOPEN
#elif defined(__HPUX__)
#define HAVE_SHL_LOAD
#endif // Unix flavour
#endif // !Unix or already have some HAVE_xxx defined
#if defined(HAVE_DLOPEN)
#include <dlfcn.h>
typedef void *wxDllType;
#elif defined(HAVE_SHL_LOAD)
#include <dl.h>
typedef shl_t wxDllType;
#elif defined(__WINDOWS__)
#include <windows.h>
typedef HMODULE wxDllType;
#elif defined(__WXMAC__)
typedef CFragConnectionID wxDllType;
#else
#error "wxLibrary can't be compiled on this platform, sorry."
#endif // OS
// defined in windows.h
#ifdef LoadLibrary
#undef LoadLibrary
#endif
// ----------------------------------------------------------------------------
// wxLibrary
// ----------------------------------------------------------------------------
class wxLibrary : public wxObject
{
public:
wxHashTable classTable;
public:
wxLibrary(wxDllType handle);
~wxLibrary();
// Get a symbol from the dynamic library
void *GetSymbol(const wxString& symbname);
// Create the object whose classname is "name"
wxObject *CreateObject(const wxString& name);
protected:
void PrepareClasses(wxClassInfo *first);
wxDllType m_handle;
};
// ----------------------------------------------------------------------------
// wxLibraries
// ----------------------------------------------------------------------------
class wxLibraries
{
public:
wxLibraries();
~wxLibraries();
// caller is responsible for deleting the returned pointer if !NULL
wxLibrary *LoadLibrary(const wxString& basename);
wxObject *CreateObject(const wxString& name);
protected:
wxList m_loaded;
};
// ----------------------------------------------------------------------------
// Global variables
// ----------------------------------------------------------------------------
extern wxLibraries wxTheLibraries;
// ----------------------------------------------------------------------------
// Interesting defines
// ----------------------------------------------------------------------------
#define WXDLL_ENTRY_FUNCTION() \
extern "C" wxClassInfo *wxGetClassFirst(); \
wxClassInfo *wxGetClassFirst() { \
return wxClassInfo::GetFirst(); \
}
#endif // wxUSE_DYNLIB_CLASS
#endif // _WX_DYNLIB_H__