2 COM Types

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com-object-type

com-is-a?

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2COM Types🔗 i

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
( com-is-a? objtype)→boolean?
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
( number->com-currency n)→com-currency?
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.

procedure
( com-date? v)→boolean?
v:any/c

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.

value
com-omit :any/c

Used with com-invoke to represent an argument that is not provided.

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