#ifndef FL_DOUBLE_WINDOW_GUARD #define FL_DOUBLE_WINDOW_GUARD typedef void* DOUBLEWINDOW; extern "C" DOUBLEWINDOW new_fl_double_window(int x, int y, int w, int h, char* label); extern "C" DOUBLEWINDOW new_fl_double_window2(int w, int h); extern "C" void free_fl_double_window(DOUBLEWINDOW d); extern "C" void fl_double_window_show(DOUBLEWINDOW d); extern "C" void fl_double_window_hide(DOUBLEWINDOW d); #endif