+ wxIDirectFBSurfacePtr CreateCompatible(const wxSize& size = wxDefaultSize,
+ int flags = 0);
+
+ bool Lock(DFBSurfaceLockFlags flags, void **ret_ptr, int *ret_pitch)
+ { return Check(m_ptr->Lock(m_ptr, flags, ret_ptr, ret_pitch)); }
+
+ bool Unlock()
+ { return Check(m_ptr->Unlock(m_ptr)); }
+
+ /// Helper struct for safe locking & unlocking of surfaces
+ struct Locked
+ {
+ Locked(const wxIDirectFBSurfacePtr& surface, DFBSurfaceLockFlags flags)
+ : m_surface(surface)
+ {
+ if ( !surface->Lock(flags, &ptr, &pitch) )
+ ptr = NULL;
+ }
+
+ ~Locked()
+ {
+ if ( ptr )
+ m_surface->Unlock();
+ }
+
+ void *ptr;
+ int pitch;
+
+ private:
+ wxIDirectFBSurfacePtr m_surface;
+ };
+