#pragma once typedef struct _GtkWidget GtkWidget; typedef struct _GtkButton GtkButton; namespace callbacks { void OnExportClicked( GtkButton *, gpointer ); void OnAddMaterial( GtkButton *, gpointer ); void OnRemoveMaterial( GtkButton *, gpointer ); gboolean OnRemoveMaterialKb( GtkWidget *, GdkEventKey *, gpointer ); } // callbacks