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Modifying Flags
3-15
x(1,2) = 12
x(2,1) = 21
x(2,2) = 22
var2 = x
Set aClass = New mycomponent.myclass
Call aClass.foo(1,y1,var1)
Call aClass.foo(1,y2,var2)
Exit Sub
Handle_Error:
MsgBox(Err.Description)
End Sub
Here, two Variant variables, var1 and var2 are constructed with the same
numerical data, but internally they are structured differently.
var1 is a 2-by-2
array of
Variants with each element containing a 1-by-1 Double, while var2 is
a 1-by-1
Variant containing a 2-by-2 array of Doubles. According to the default
data conversion rules listed in Table B-3, COM VARIANT to MATLAB
Conversion Rules, on page B-10,
var1 converts to a 2-by-2 cell array with each
cell occupied by a 1-by-1
double, and var2 converts directly to a 2-by-2 double
matrix. The
InputArrayFormat flag controls how arrays of these two types are
handled. As it turns out, the two arrays in the previous example both convert
to double matrices because the default value for the
InputArrayFormat flag is
mwArrayFormatMatrix. This default is used because, as it turns out, array data
originating from Excel ranges is always in the form of an array of
Variants
(like
var1 of the previous example), and MATLAB functions most often deal
with matrix arguments. But what if you really want a cell array? In this case,
you set the
InputArrayFormat flag to mwArrayFormatCell. Do this by adding
the following line after creating the class and before the method call.
aClass .MWFlags.ArrayFormatFlags.InputArrayFormat =
mwArrayFormatCell
Setting this flag presents all array input to the compiled MATLAB function as
cell arrays.
Similarly, you can manipulate the format of output arguments using the
OutputArrayFormat flag. You can also modify array output with the
AutoResizeOutput and TransposeOutput flags.
AutoResizeOutput is used for Excel Range objects passed directly as output
parameters. When this flag is set, the target range automatically resizes to fit
- MATLAB Excel Builder 1
- How to Contact The MathWorks: 2
- Contents 3
- Usage Examples 5
- Function Wizard 5
- Registration and Versioning 7
- Preface 10
- Suggested Background 11
- Limitations and Restrictions 13
- Typographical Conventions 15
- Overview 17
- 1 Overview 18
- Versions 19
- Add File button or 23
- Build Status 24
- Application Deployment 25
- Graphical User Interface 27
- 2 Graphical User Interface 28
- File Menu 29
- Project Menu 29
- Help Menu 31
- Component Information 33
- Programming with Excel 35
- Builder Components 35
- at the beginning to 39
- CreateObject Function 40
- Visual Basic New Operator 40
- ErrObject object 47
- Modifying Flags 48
- Data Conversion Flags 50
- 4 Usage Examples 54
- Creating the Project 55
- Summary of Project Settings 56
- Building the Project 57
- <matlab>\work, and the 61
- F2 and then Enter 65
- F2 followed by Enter 67
- Spectral Analysis Example 71
- Component name: Fourier 71
- Class name: Fourier 71
- Use Handle Graphics library 71
- ThisWorkbook object 81
- Testing The Add-in 83
- Creating the Data 84
- Running the Test 84
- Function Viewer 89
- Using the Function Viewer 90
- Component Browser 91
- Editing Required Inputs 92
- Properties button 93
- Editing varargin Inputs 94
- Editing Required Outputs 95
- Editing varargout Outputs 96
- Input Argument Range 97
- Input Argument Value 98
- Output Argument Properties 98
- Rename Function 99
- Copy Function 100
- Introduction 101
- 5 Function Wizard 102
- Function Reference 103
- Examples Example 1 104
- Purpose Query system registry 104
- Arguments 104
- Description 104
- 6mxltool 106
- Syntax mxltool 106
- Producing a COM Object 107
- Capabilities 108
- Step 1. Code Generation 111
- Step 3. C++ Compilation 111
- COM Class.method 113
- Producing a COM Class 114
- IDL Mapping 114
- Visual Basic Mapping 115
- MATLAB Compiler Output 116
- Calling Conventions 117
- Data Conversion 119
- B Data Conversion 120
- Data Conversion Rules 121
- CoerceNumericToType 132
- InputDateFormat 132
- OutputAsDate As Boolean 132
- DateBias As Long 133
- Registration and 135
- Versioning 135
- C Registration and Versioning 136
- Component Registration 137
- Utility Library 145
- D Utility Library 146
- Utility Library Classes 147
- Sub MWDate2VariantDate(pVar) 152
- Class MWFlags 153
- Sub Clone(ppFlags As MWFlags) 159
- Property NumberOfDims As Long 164
- Property Dims As Variant 164
- Property Name As String 166
- Property Value As Variant 167
- Property MWFlags As MWFlags 167
- Sub Clone(ppField As MWField) 167
- Property Real As Variant 168
- Property Imag As Variant 168
- Sub Clone(ppArg As MWArg) 173
- Enum mwDateFormat 175
- Troubleshooting 177
- E Troubleshooting 178
- Medium on the 179
- Security Level tab 179
- VARIANT B-2 181
- CreateObject function 3-6 181
- Enumeration 181
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