int iSetTimer(int msec, void (*f)(void))
void iPauseTimer(int index)
void iResumeTimer(int index)

void iSetColor(double r, double g, double b)
void iPoint(double x, double y, int size=0)
void iLine(double x1, double y1, double x2, double y2)
void iFilledPolygon(double x[], double y[], int n)
void iPolygon(double x[], double y[], int n)
void iRectangle(double left, double bottom, double dx, double dy)
void iFilledRectangle(double left, double bottom, double dx, double dy)
void iFilledCircle(double x, double y, double r, int slices=100)
void iCircle(double x, double y, double r, int slices=100)
void iEllipse(double x, double y, double a, double b, int slices=100)
void iFilledEllipse(double x, double y, double a, double b, int slices=100)

void iText(double x, double y, char *str, void* font=GLUT_BITMAP_8_BY_13)

void iDraw();
void iClear();
void iShowBMP(int x, int y, char filename[])

void iInitialize(int width=500, int height=500, char *title="iGraphics")

void iKeyboard(unsigned char);
void iSpecialKeyboard(unsigned char);
void iMouseMove(int, int);
void iMouse(int button, int state, int x, int y);