Download MATLAB BUILDER EX 1 User`s guide

Data Conversion Rules
VARIANT Type Codes Supported (Continued)
Variant
VARIANT Type Code
(C/C++)
C/C++ Type
Type Code
(Visual Basic)
<anything>|VT_BYREF
—
—
Visual
Basic
Type
—
Definition
Bitwise combine
VT_BYREF with any
basic type to declare
as a reference to a
value
+
Denotes Windows-specific type. Not part of standard C/C++.
The following table lists the rules for converting from MATLAB to COM.
MATLAB to COM VARIANT Conversion Rules
MATLAB Data
Type
VARIANT Type for
VARIANT Type for
Scalar Data
Array Data
cell
A 1-by-1 cell array
converts to a single
VARIANT with a type
conforming to the
conversion rule for the
MATLAB data type of
the cell contents.
A multidimensional
cell array converts
to a VARIANT of type
VT_DISPATCH
VT_DISPATCH
structure
Comments
VT_VARIANT|VT_ARRAY
with the type of
each array member
conforming to the
conversion rule for the
MATLAB data type of
the corresponding cell.
A MATLAB struct
array is converted to
an MWStruct object.
(See “Class MWStruct”
on page C-16.) This
object is passed as a
VT_DISPATCH type.
B-5