LotusScript for Visual Basic Programmers - IBM Redbooks

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would execute but give incorrect results since you would always compare whatever the contents of rc was to zero. Const vbAbort = 3 Const vbRetry = 4 Const vbIgnore = 5 Const vbYes = 6 Const vbNo = 7 Summary It’s probably safe to say that a lot of your Visual Basic calculation code will port across to LotusScript, but that your interface code will not move as easily. LotusScript is enough like Visual Basic’s BASIC language implementation that you will have few problems porting code from one tool to the other — if you recognize these differences before building any code. With a little care, you will be able to easily create routines that can be called from either Visual Basic or LotusScript without change. The problem for the Visual Basic developer writing code to share with LotusScript will not be what cannot be moved into LotusScript. Rather, it will be in deciding not to use some of the appealing LotusScript extensions that are now available — like class inheritance, the include% features and some of the LotusScript Notes classes. 30 LotusScript for Visual Basic Programmers
Chapter 2 The Notes Integrated Development Environment Introduction Lotus Notes provides a complete application development environment. A Notes application consists of several or all of the following: Forms — which provide the templates through which data in the application is entered and displayed. Unlike a traditional template, forms can also act on the data. For example, when a user inputs information in the form, the form might, depending on the contents, send an e-mail message to another user. Views and folders — which provide different ways of looking at all or part of your data, according to specified criteria. A view might be thought of as similar to a report in a traditional database program, except that the view is dynamic and includes links to information in the application. Navigators — which provide graphical means of moving between views. Agents — which add functionality to the application. For example, you might create an agent that once a day scans the documents in the database, checks the contents of certain fields, and places documents that meet specified criteria into a special folder. There are, within Notes, Integrated Development Environments (IDESs) for developing each of the above named elements. These IDEs share many common elements. For example, the tools for writing LotusScript are identical among all of the IDEs. We will focus on the forms IDE since it is the most complex, and therefore the most interesting one. Keep in mind, though, that much of the discussion in this chapter applies to the development of all Notes elements, not just forms. 31
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 and 28: Lotus Components You can add Window
Page 29 and 30: Lotus, creating a cut-down version
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: Where LotusScript commands and synt
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
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Method Description FindFreeTimeDial
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NotesUIDatabase The NotesUIDatabase
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The following figure shows how it w
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Dim doc As Object We create a refer
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Declaring Notes Classes in Visual B
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In Visual Basic, we can access the
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Dim doc As Object Dim item As Objec
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The following figure shows a Visual
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Chapter 5 Converting HiTest Applica
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We declare an hgstatus variable. Al
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Converting a HiTest Application Usi
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2. Put the following code on the Cr
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Converting a HiTest Application to
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6. Enter the following code on the
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10. From the Notes menu, choose Fil
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Accessing Notes Session Properties
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Example This example sets the value
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HiTest Functions Notes Class method
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Accessing Notes Sessions in LotusSc
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Chapter 7 Accessing Notes Databases
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We set the property of hgdatabase.
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HiTest Name LotusScript Notes Class
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All of the methods mentioned above
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REM view becomes a NotesView object
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We create a new database on a local
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Dim hgviewid As Long Dim hgview As
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Following is an explanation of the
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We declare a session, db and view w
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The HiTest Visual Basic API does no
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Chapter 9 Accessing Notes Documents
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We create and open a new document u
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HiTest Function Name Notes Classes
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Set doc = dc.GetFirstDocument(1247)
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NotesUIDocument = EditDocument([boo
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Set dc = db.AllDocuments Set doc =
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We enter text in the Subject, Categ
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Attachments Internally, Lotus Notes
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hgstatus = HTDocumentClose(hgdest_d
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Windows 3.1. For details on the OLE
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Dim db As NotesDatabase Dim view As
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Perform the following steps to crea
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Tip You can select Display as icon
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Creating a Linked Object 3. Choose
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Creating an Embedded Object Using L
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Messagebox msg$, boxType, "Successf
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Embedding a New Object in a Documen
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Note If you do not want to create t
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answer% = Messagebox ("Object has b
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16. Click Yes to confirm that you w
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7. Select the Show twistie when row
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Editing a Linked Object Note If you
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Editing an Embedded or a Linked Obj
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The object’s application is launc
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Following is a description of the L
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(10) Select Case object.Type Case E
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This statement assigns object as a
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HiTest Class Agent Attachment CDRec
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HiTest Class Datetime Document HiTe
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HiTest Class Item HiTest Functions
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HiTest Class User View Viewcell HiT
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other operating environments may va
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How To Get ITSO Redbooks This secti
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How Customers Can Get ITSO Redbooks
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H handling errors, 95 hierarchical
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