LotusScript for Visual Basic Programmers - IBM Redbooks

More documents

Recommendations

Info

Dim doc As NotesDocument Set uidoc = ws.CurrentDocument Set doc = uidoc.Document Execute doc.txtScript Print "Completed Script" End Sub Other Interesting LotusScript Commands The Width #filenumber, Width statement forces a set ASCII file width, with autowrap to the beginning of the next line when the width has been exceeded. The YIELD statement is equivalent to doEvents in Visual Basic 4. And the Yield statement requires a return value, unlike the doEvents in Visual Basic, but equivalent to Visual Basic’s doEvents function. The TypeName (strFileName$) statement will return the word “STRING”. This allows you to determine the datatype of a variable at run time, which is useful when you have passed variables that may contain any type of data in them. LotusScript “feels” a little more like C++ than like BASIC sometimes. Beyond the standard BASIC keywords, LotusScript provides for additional syntax such as “Declare”ing a forward reference to a function or subroutine. This allows you to code and test the sub or function before it’s actually included in your main app — something that’s particularly useful in team development environments. Developers familiar with Object-Oriented programming will quickly find themselves creating and instantiating objects using new (constructors), delete (destructors), and data-hiding features you would expect to see in C++. On Event Click from call allows you to react to events happening in other Lotus products. For example, this would allow you to create a page-turning presentation to use in a Lotus Notes training application. Evaluate (Macro, object) allows you to easily call another (Lotus only) product macro. This allows you to pass a string of numbers to a spreadsheet to be totaled, etc. The %Include command gives you the ability to include LotusScript variable, constant and API declarations into your code from external ASCII files. This allows you to sort through all of the various files provided by 18 LotusScript for Visual Basic Programmers
Lotus, creating a cut-down version that contains just the statements that you need. You can then add all of this to a new application with one line of code: %Include “MY-DEFS.LSS”. This behaves the same as if you were using files in C or files in C++. The %Include command can only be used in the general declarations sections of an object; not within the event code itself. Uni (strExp) and UChr (longValue) functions work together like Visual Basic’s Asc and Char statements, but for Unicode characters. Uni ( ) returns the Unicode numeric character code for the first character passed as the string parameter. UChr ( ) returns the character represented by the long number passed as an argument. Using the Print stringRef command in LotusScript by itself will place the string in the last message status bar area of Lotus Notes, as is shown in this figure. This makes for a useful display area when debugging your program and is a good place to drop critical run time messages if you are writing code for agents, monitors or other background tasks. Other Interesting Visual Basic Commands Visual Basic supports Named and Optional parameters in its subs, functions and property procedures, allowing you to specify the parameters in any order and to choose which parameters you actually want to call the routine with. Visual Basic allows you to create OLE Servers (EXEs and DLLs in the 32-bit version). Object-Oriented Programming (OOP) Object-oriented (OO) development features include inheritance, polymorphism, data encapsulation and creating classes. Classes A class can be thought of as a template that can be used to create multiple instances of objects at run time. Each object contains its own copy of data, which can be changed via properties provided externally to the user (or Chapter 1: LotusScript and Visual Basic: A Comparison 19
Page 1 and 2: LotusScript for Visual Basic Progra
Page 3 and 4: Abstract This redbook describes how
Page 5 and 6: NotesTimer ................... ....
Page 7 and 8: Preface This redbook describes how
Page 9 and 10: Chapter 12, “Using Notes as an OL
Page 11 and 12: Chapter 1 LotusScript and Visual Ba
Page 13 and 14: Object-Oriented Terminology LotusSc
Page 15 and 16: There are many good examples of how
Page 17 and 18: LotusScript only allows arrays and
Page 19 and 20: File I/O Code such as the following
Page 21 and 22: "frmMain::cmdUpdateDB_Click") then
Page 23 and 24: MessageBox Visual Basic developers
Page 25 and 26: Extending the Code Visual Basic pro
Page 27: Lotus Components You can add Window
Page 31 and 32: Once you have created the object, y
Page 33 and 34: Public Function PostError(ErrNumber
Page 35 and 36: 1. Consts move out of the class int
Page 37 and 38: In Visual Basic sending a message i
Page 39 and 40: Where LotusScript commands and synt
Page 41 and 42: Chapter 2 The Notes Integrated Deve
Page 43 and 44: Action Pane This is the narrow wind
Page 45 and 46: Run Area The three radio buttons sp
Page 47 and 48: 4. Click the Methods twistie, and a
Page 49 and 50: When you enter structured programmi
Page 51 and 52: ut the results are different. Such
Page 53 and 54: Before we let the code run to the b
Page 55 and 56: The following figure shows the hier
Page 57 and 58: NotesACL Every NotesDatabase contai
Page 59 and 60: NotesAgent NotesAgent is contained
Page 61 and 62: Method Description New Creates a ne
Page 63 and 64: Method Description UnprocessedSearc
Page 65 and 66: NotesDateTime NotesDateTime is cont
Page 67 and 68: Property Description Name Read-only
Page 69 and 70: Method Description Save Saves any c
Page 71 and 72: Property Description UniversalID Re
Page 73 and 74: NotesEmbeddedObject The NotesEmbedd
Page 75 and 76: NotesInternational The NotesInterna
Page 77 and 78: NotesLog Property Description IsNam
Page 79 and 80:
NotesName The NotesName class will
Page 81 and 82:
NotesRichTextItem NotesRichTextItem
Page 83 and 84:
Method Description CreateNewsletter
Page 85 and 86:
NotesTimer The NotesTimer class wil
Page 87 and 88:
Method Description GetPrevSibling G
Page 89 and 90:
NotesUIWorkspace NotesUIWorkspace c
Page 91 and 92:
Method Description FindFreeTimeDial
Page 93 and 94:
NotesUIDatabase The NotesUIDatabase
Page 95 and 96:
The following figure shows how it w
Page 97 and 98:
Dim doc As Object We create a refer
Page 99 and 100:
Declaring Notes Classes in Visual B
Page 101 and 102:
In Visual Basic, we can access the
Page 103 and 104:
Dim doc As Object Dim item As Objec
Page 105 and 106:
The following figure shows a Visual
Page 107 and 108:
Chapter 5 Converting HiTest Applica
Page 109 and 110:
We declare an hgstatus variable. Al
Page 111 and 112:
Converting a HiTest Application Usi
Page 113 and 114:
2. Put the following code on the Cr
Page 115 and 116:
Converting a HiTest Application to
Page 117 and 118:
6. Enter the following code on the
Page 119 and 120:
10. From the Notes menu, choose Fil
Page 121 and 122:
Accessing Notes Session Properties
Page 123 and 124:
Example This example sets the value
Page 125 and 126:
HiTest Functions Notes Class method
Page 127 and 128:
Accessing Notes Sessions in LotusSc
Page 129 and 130:
Chapter 7 Accessing Notes Databases
Page 131 and 132:
We set the property of hgdatabase.
Page 133 and 134:
HiTest Name LotusScript Notes Class
Page 135 and 136:
All of the methods mentioned above
Page 137 and 138:
REM view becomes a NotesView object
Page 139 and 140:
We create a new database on a local
Page 141 and 142:
Dim hgviewid As Long Dim hgview As
Page 143 and 144:
Following is an explanation of the
Page 145 and 146:
We declare a session, db and view w
Page 147 and 148:
The HiTest Visual Basic API does no
Page 149 and 150:
Chapter 9 Accessing Notes Documents
Page 151 and 152:
Page 153 and 154:
We create and open a new document u
Page 155 and 156:
HiTest Function Name Notes Classes
Page 157 and 158:
Set doc = dc.GetFirstDocument(1247)
Page 159 and 160:
NotesUIDocument = EditDocument([boo
Page 161 and 162:
Set dc = db.AllDocuments Set doc =
Page 163 and 164:
We enter text in the Subject, Categ
Page 165 and 166:
Attachments Internally, Lotus Notes
Page 167 and 168:
hgstatus = HTDocumentClose(hgdest_d
Page 169 and 170:
Windows 3.1. For details on the OLE
Page 171 and 172:
Page 173 and 174:
Dim db As NotesDatabase Dim view As
Page 175 and 176:
Perform the following steps to crea
Page 177 and 178:
Tip You can select Display as icon
Page 179 and 180:
Creating a Linked Object 3. Choose
Page 181 and 182:
Creating an Embedded Object Using L
Page 183 and 184:
Messagebox msg$, boxType, "Successf
Page 185 and 186:
Embedding a New Object in a Documen
Page 187 and 188:
Note If you do not want to create t
Page 189 and 190:
answer% = Messagebox ("Object has b
Page 191 and 192:
16. Click Yes to confirm that you w
Page 193 and 194:
7. Select the Show twistie when row
Page 195 and 196:
Editing a Linked Object Note If you
Page 197 and 198:
Editing an Embedded or a Linked Obj
Page 199 and 200:
The object’s application is launc
Page 201 and 202:
Following is a description of the L
Page 203 and 204:
(10) Select Case object.Type Case E
Page 205 and 206:
This statement assigns object as a
Page 207 and 208:
HiTest Class Agent Attachment CDRec
Page 209 and 210:
HiTest Class Datetime Document HiTe
Page 211 and 212:
HiTest Class Item HiTest Functions
Page 213 and 214:
HiTest Class User View Viewcell HiT
Page 215 and 216:
other operating environments may va
Page 217 and 218:
How To Get ITSO Redbooks This secti
Page 219 and 220:
How Customers Can Get ITSO Redbooks
Page 221 and 222:
H handling errors, 95 hierarchical
show all

LotusScript for Visual Basic Programmers - IBM Redbooks

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?