double 	String2Real(Str255 str);
void 	Real2String(double n, int width, int fwidth, Str255 str);

int 	GetDialogItem(DialogPtr TheDialog, int item);
void 	SetDialogItem(DialogPtr TheDialog, int item, int n);
void 	SetDNum(DialogPtr TheDialog, int item, int n);
int 	GetDNum(DialogPtr TheDialog, int item);
void 	SetDReal(DialogPtr TheDialog, int item, double n, int fwidth);
double 	GetDReal(DialogPtr TheDialog, int item);
void 	SetDString(DialogPtr TheDialog, int item, Str255 str);
void 	GetDString(DialogPtr TheDialog, int item, Str255 str);

typedef unsigned char
	**ppc, *pc;
	typedef struct 
	{
	int		x; /* x dimension */
	int 	y; /* y dimension */
	short double  **e;	/* pointer to array of pointer to the rows */	
	} imgdr, *Pimgdr, **Himgdr;

typedef struct 
	{
	int		x; /* x dimension */
	int 	y; /* y dimension */
	unsigned char  **e;	/* pointer to array of pointer to the rows */	
	} imgd, *Pimgd, **Himgd;

void 	freeimgr(Pimgdr m);
OSErr 	dimimgr(Pimgdr m, int y, int x);