When defining a series of constants like this

#define dbBoolean	1			&& Logical
#define dbByte		2
#define dbInteger	3			&& Short
#define dbLong		4			&& Long
#define dbCurrency	5
#define dbSingle	6
#define dbDouble	7			&& Float
#define dbDate		8			&& Datetime
#define dbBinary	9
#define dbText		10			&& Character
#define dbLongBinary	11		&& OLE
#define dbmemo		12			&& with Attachments
#define dbGUID		15			&& Replication
#define dbDecimal	16			&& Maybe 20

for use in a form and its methods, where should the above code be placed? I tried putting it in form.load but they weren't visible to the forms methods.
Thanks