#ifndef _SCREENCONTROL_
#define _SCREENCONTROL_
#include "os.h"

#ifdef OS_DOS
typedef UCHAR * screen_ptr;
#endif

#ifdef OS_WINDOWS
typedef HDC screen_ptr;
#endif

void Init_Screen(short width, short height);
void Activate_Graphics();
void End_Graphics();
void Change_Screen(short width, short height);
void Set_Screen_Window(screen_ptr new_screen_ptr);
screen_ptr Get_Screen_Window();

#ifdef OS_WINDOWS
void Set_Stretch_Factor(short new_factor);
short Get_Stretch_Factor();
#endif

#endif