The FORM_INFO_1 structure contains information about a print form. The information includes the print form’s origin, its name, its dimensions, and the dimensions of its printable area.
typedef struct _FORM_INFO_1 { // fi1 
    DWORD Flags; 
    LPTSTR pName; 
    SIZEL  Size; 
    RECTL  ImageableArea; 
} FORM_INFO_1; 
 
| 
 Value  | 
 Meaning  | 
| 
 FORM_BUILTIN  | 
 If this bit-flag is set, the form is built-in. If this bit-flag is clear, the form is user-defined.  |