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Utility Library Classes
Property Value As Variant
The
Value
property stores the actual argument to pass. Any type that can be
passed to a compiled method is valid for this property.
Property MWFlags As MWFlags
Stores a reference to an
MWFlags
object. This property sets or gets the array
formatting and data conversion flags for a particular argument. Each
MWArg
object has its own
MWFlags
property. This property overrides the value of any
flags set on the object whose methods are called.
Sub Clone(ppArg As MWArg)
Creates a copy of an
MWArg
object.
Parameters.
Argument
Type
Description
ppArg
MWArg
Reference to an
uninitialized
MWArg
object to receive the
copy
Return Value. None.
Remarks. Clone allocates a new
MWArg
object and creates a deep copy of the
object’s contents. Call this function when a separate object is required instead
of a shared copy of an existing object reference.
C-31
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C
Utility Library
Enumerations
The MATLAB Builder for Excel Utility library provides three enumerations
(sets of constants):
• “Enum mwArrayFormat” on page C-32
• “Enum mwDataType” on page C-32
• “Enum mwDateFormat” on page C-33
Enum mwArrayFormat
The
mwArrayFormat
enumeration is a set of constants that denote an array
formatting rule for data conversion. The following table lists the members
of this enumeration.
mwArrayFormat Values
Constant
Numeric Value
Description
mwArrayFormatAsIs
0
Do not reformat the
array.
mwArrayFormatMatrix
1
Format the array as a
matrix.
mwArrayFormatCell
2
Format the array as a
cell array.
Enum mwDataType
The
mwDataType
enumeration is a set of constants that denote a MATLAB
numeric type. The following table lists the members of this enumeration.
mwDataType Values
Constant
Numeric Value
MATLAB Type
mwTypeDefault
0
N/A
mwTypeLo
gical
3
logical
mwTypeChar
4
char
C-32
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Enumerations
mwDataType Values (Continued)
Constant
Numeric Value
MATLAB Type
mwTypeDouble
6
double
mwTypeSingle
7
single
mwTypeInt8
8
int8
mwTypeUint8
9
uint8
mwTypeInt16
10
int16
mwTypeUint16
11
uint16
mwTypeInt32
12
int32
mwTypeUint32
13
uint32
Enum mwDateFormat
The
mwDateFormat
enumeration is a set of constants that denote a formatting
rule for dates. The following table lists the members of this enumeration.
mwDateFormat Values
Constant
Numeric Value
Description
mwDateFormatNumeric
0
Format dates as
numeric values.
mwDateFormatString
1
Format dates as strings.
C-33
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C
Utility Library
C-34
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D
Troubleshooting
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D
Troubleshooting
This appendix provides a table showing errors you may encounter using
MATLAB Builder for Excel, probable causes for these errors, and suggested
solutions.
Note MATLAB Builder for Excel uses the MATLAB Compiler to generate
components. This means that you might see diagnostic messages from the
MATLAB Compiler. See the MATLAB Compiler documentation for more
information about those messages.
Excel Builder Errors and Suggested Solutions
Message
Probable Cause
Suggested Solution
MBUILD.BAT: Error:
The
chosen compiler does
not support building COM
objects.
The chosen compiler
does not support
building COM objects.
Rerun
mbuild -setup
and choose a
supported compiler.
Error in
component_name.class_name:
Error getting data
conversion flags.
Usually caused by
mwcomutil.dll
not
being registered.
Open a DOS window, change
directories to
<matlab>\bin\win32
(
<matlab>
represents the
location of MATLAB on your
system), and run the command
mwregsvr mwcomutil.dll
.
Error in VBAProject:
ActiveX component can't
create object.
• Project DLL is not
registered.
• An incompatible
MATLAB DLL exists
somewhere on the
system path.
If the DLL is not registered, open
aDOS window, change directories
to
<projectdir>\distrib
(
<projectdir>
represents
the location of your project
files), and run the command:
mwregsvr <projectdll>.dll
.
Error in VBAProject:
Automation error The
specified module could
not be found.
This usually occurs if
MATLAB is not on the
system path.
See Required Locations to Develop
and Use Components on page D-4.
D-2
Troubleshooting
Excel Builder Errors and Suggested Solutions (Continued)
Message
Probable Cause
Suggested Solution
LoadLibrary
("component_name.dll")
failed - The specified
module could not be
found.
You may get this
error message while
registering the project
DLL from the DOS
prompt. This usually
occurs if MATLAB is not
on the system path.
See Required Locations to Develop
and Use Components on page D-4.
Cannot recompile the M
file xxxx because it is
already in the library
libmmfile.mlib.
The name you have
chosen for your M-file
duplicates the name of
an M-file already in the
library of precompiled
M-files.
Rename the M-file, choosing a name
that does not duplicate the name of
an M-file already in the library of
precompiled M-files.
Arguments may only be
defaulted at the end of
an argument list.
You have modified the
VB script generated for
Excel Builder and have
not provided one or more
arguments used in the
modified script.
Provide a value for any argument
that requires an explicit value.
Arguments that accept defaults
appear at the end of the argument
list.
D-3
D
Troubleshooting
Required Locations to Develop and Use Components
Component
Development Machine
Target Machine
MCR
Make sure that
matlabroot\bin\win32
appears on your system
path ahead of any other
MATLAB installations.
(
matlabroot
is your root
MATLAB directory.)
Verify that
mcr_root
\
ver\runtime\win32
appears on your system path.
(
mcr_root
is your root MCR
directory.)
CTF
Verify that the CTF file is in the same directory as your
program’s executable file.
D-4
Troubleshooting
Excel Errors and Suggested Solutions
Message
Probable Cause
Suggested Solution
The macros in this project are
disabled. Please refer to the
online help or documentation
of the host application to
determine how to enable macros.
Note: Wording may vary
depending upon the version of
Excel you are running.
The macro security for Excel
is set to
High
.
Set Excel macro security to
Medium
on the Security
Level tab. Select
Tools > Macro > Security.
Function Wizard Problems
Problem
Probable Cause
Suggested Solution
The Function Wizard Help
does not appear.
The Function Wizard Help
file (
mlfunction.chm
)is not
in the same directory as
the Function Wizard add-in
(
mlfunction.xla
).
Copy the Help file
(
mlfunction.chm
)into the
same directory as the add-in.
D-5
D
Troubleshooting
D-6
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