2 COM Types
In the result of a function like com-method-type, a type 'mx-any standards for a character, real number, string, boolean, COM currency (as in com-currency?), COM date (as in com-date?), COM scode value (as in com-scode?), COM IUnknown value (as in com-iunknown?, or COM object (as in com-object?).}
procedure
(com-object-type obj) → com-type?
obj : com-object?
Returns a type for a COM object.
procedure
obj : com-object? type : com-type?
Return #t if obj is of the
type type.
procedure
(com-currency? v) → boolean?
v : any/c
Returns #t if v is a COM currency value,
#f otherwise.
procedure
(com-currency->number curr) → real?
curr : com-currency?
Returns a number for curr.
procedure
n : real?
Converts a number to a COM currency value. A currency value is
repsented with a 64-bit two’s-complement integer, though n
may contain decimal digits. If n is too large, an
exception is raised.
Returns #t if v is a COM date value, #f
otherwise.
procedure
(com-date->date d) → date?
d : com-date?
Converts a COM date to an instance of the date structure
type. In the result, the dst? field is always #f,
and the time-zone-offset field is 0.
procedure
(date->com-date d) → com-date?
d : date?
Converts a date instance to a COM date value.
procedure
(com-scode? v) → boolean?
v : any/c
Returns #t if v is a COM scode value, #f
otherwise.
procedure
(com-scode->number sc) → integer?
sc : com-scode?
Converts a COM scode value to an integer.
procedure
(number->com-scode n) → com-scode?
n : integer?
Converts a number to a COM scode value. The number must be
representable as a 32-bit two’s-complement number, otherwise an
exception is raised.
procedure
(com-iunknown? v) → boolean?
v : any/c
Returns #t if v is a COM IUnknown value,
#f otherwise.
Used with com-invoke to represent an argument that is not
provided.