+ // return plugin directory on platforms where it makes sense and empty
+ // string on others:
+ static wxString GetPluginsDirectory();
+
+
+#if WXWIN_COMPATIBILITY_2_2
+ operator bool() const { return IsLoaded(); }
+#endif
+
+protected:
+ // platform specific shared lib suffix.
+ static const wxChar *ms_dllext;
+
+ // the handle to DLL or NULL
+ wxDllType m_handle;
+
+ // no copy ctor/assignment operators (or we'd try to unload the library
+ // twice)
+ DECLARE_NO_COPY_CLASS(wxDynamicLibrary)
+};
+
+
+// ----------------------------------------------------------------------------
+// wxDllLoader: low level DLL functions, use wxDynamicLibrary in your code
+// ----------------------------------------------------------------------------
+
+#if WXWIN_COMPATIBILITY_2_2 && wxUSE_DYNAMIC_LOADER
+
+/*
+ wxDllLoader is a class providing an interface similar to unix's dlopen().
+ It is used by wxDynamicLibrary wxLibrary and manages the actual loading of
+ DLLs and the resolving of symbols in them. There are no instances of this
+ class, it simply serves as a namespace for its static member functions.
+*/
+class WXDLLIMPEXP_BASE wxDllLoader
+{
+public:
+ /*
+ This function loads the shared library libname into memory.
+
+ libname may be either the full path to the file or just the filename in
+ which case the library is searched for in all standard locations
+ (use GetDllExt() to construct the filename)
+
+ if success pointer is not NULL, it will be filled with TRUE if everything
+ went ok and FALSE otherwise
+ */
+ static wxDllType LoadLibrary(const wxString& name, bool *success = NULL);
+
+ /*
+ This function unloads the shared library previously loaded with
+ LoadLibrary
+ */
+ static void UnloadLibrary(wxDllType dll);
+
+ /*
+ This function returns a valid handle for the main program
+ itself or NULL if back linking is not supported by the current platform
+ (e.g. Win32).
+ */
+ static wxDllType GetProgramHandle() { return wxDynamicLibrary::GetProgramHandle(); }
+
+ /*
+ This function resolves a symbol in a loaded DLL, such as a
+ variable or function name.
+
+ dllHandle Handle of the DLL, as returned by LoadDll().
+ name Name of the symbol.
+
+ Returns the pointer to the symbol or NULL on error.
+ */
+ static void *GetSymbol(wxDllType dllHandle, const wxString &name, bool *success = 0);
+
+ // return the standard DLL extension (with leading dot) for this platform
+ static wxString GetDllExt() { return wxDynamicLibrary::GetDllExt(); }
+
+private:
+
+ wxDllLoader(); // forbid construction of objects
+};
+
+
+// ----------------------------------------------------------------------------
+// wxLibrary
+// ----------------------------------------------------------------------------
+
+#include "wx/hash.h"
+
+class WXDLLIMPEXP_BASE wxLibrary : public wxObject
+{
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