LotusScript for Visual Basic Programmers - IBM Redbooks

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Close #iLogPtr% Case LOG_TO_DB ' not implemnented Case LOG_SEND_TO_PAGER ' not implemented Case LOG_SEND_EMAIL ' not implemented Case Else Msgbox (mErrMsg) End Select Select Case ErrNumber Case 5 ' invalid procedure call ErrSeverity = RECOVERABLE PostError = SHUTDOWN_AFTER_ERR Case 68 ' device not available (like when user ' accesses A: without a diskette. Show a ' message and then resume. ErrSeverity = SHUTDOWN_APP PostError = RESUME_AFTER_ERR Case Else ErrSeverity = RECOVERABLE PostError = RESUME_NEXT_AFTER_ERR End Select End Function End Class In moving the code from Visual Basic to LotusScript, we make the following slight modifications. 24 LotusScript for Visual Basic Programmers
1. Consts move out of the class into the scope of the object the class is in. 2. Dim statements within the class change to Private. 3. isMissing is not provided. Replace isMissing with isEmpty. 4. Optional arguments are not available. Replace Optional with explicit variable declarations. 5. For property functions, Set is used, rather than Let. Set does not have the special (but rarely used) object passing features that are present in Visual Basic. Function HandleErr (iErr%, strErrLocation$, iAction%) As Integer On Error Goto MetaErr Dim objErr Set objErr = New ErrObject rc = objErr.posterror (iErr%, strErrLocation$, iAction%) Delete objErr Exit Function MetaErr: ' An error here might come from a failure to create the object. Msgbox(Format$(Err) & ", " & Error$(Err)) Resume Next End Function The only real change in moving HandleErr from Visual Basic to LotusScript is that the object is destroyed explicitly with the Delete objErr statement. Notice that the MsgBox call comes across without change. Using HandleErr () results in a message box that looks like this: Chapter 1: LotusScript and Visual Basic: A Comparison 25
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: Public Function PostError(ErrNumber
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
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Method Description GetPrevSibling G
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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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Page 153 and 154:
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
Page 219 and 220:
How Customers Can Get ITSO Redbooks
Page 221 and 222:
H handling errors, 95 hierarchical
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LotusScript for Visual Basic Programmers - IBM Redbooks

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