LotusScript for Visual Basic Programmers - IBM Redbooks

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When you regenerate an error, leave the error object’s other properties unchanged. If the raised error is not trapped, the Source and Description properties can be displayed to help the user take corrective action. A class (MyClassALC) module might include the error handler to accommodate any error it might trap, regenerating those it is unable to resolve. When you are debugging an application that has a reference to an OLE automation object or a class defined in a class module, you may find it confusing to determine which object generates an error. To make this easier, you can select the Break in Class module option on the Advanced tab of the Options dialog box (available from the Tools menu). With this option selected, an error arising in a form or standard module will invoke an error handler, if one is available. An error in a class module or an object in another application that is running in another instance of Visual Basic will cause that class to enter the debugger’s break mode, allowing you to analyze the error. An error arising in a compiled object will not display the debug window in break mode; rather, such errors will be handled by the object’s error handler, or trapped by the referencing module. Logic Errors Logic errors occur when an application doesn’t perform the way it was intended. An application can have syntactically valid code, run without performing any invalid operations, and yet produce incorrect results. Only by testing the application and analyzing results can you verify that the application is performing correctly. You can use the Visual Basic Debugging tools to fix logic errors. Chapter 4: Lotus Notes as an OLE 2 Automation Server 97
Chapter 5 Converting HiTest Applications HiTest Tools for Visual Basic is a 16-bit product. It can only work with 16-bit Visual Basic and the 16-bit version of Lotus Notes (Lotus Notes Release 3 and Release 4 for Windows 3.1). You can convert your Notes Release 3 applications writen in HiTest to Notes Release 4 applications in one of three ways, as shown in the following figure: Notes Release 3 Notes Release 4 Application in HiTest Basic API Application in HiTest Basic API Notes Release 4 Notes Release 4 Application Using Notes Classes via OLE in Visual Basic Application Using LotusScript in Lotus Notes You can use the original HiTest code directly in Notes Release 4. However, if you do this, you cannot use any of the Release 4 features, such as folders. Also, since HiTest is a 16-bit product, the HiTest application can only work with the 16-bit version of Lotus Notes Release 4. You can convert the HiTest application to an application using Notes classes through OLE automation in Visual Basic. This enables you to use the Release 4 features. However, some of the methods and properties provided with the Notes classes in LotusScript will not be available to you. You can convert to LotusScript. This enables you to use all the Notes Release 4 features. This chapter covers the above topics in more detail. 99
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LotusScript for Visual Basic Progra
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Abstract This redbook describes how
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NotesTimer ................... ....
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Preface This redbook describes how
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Chapter 12, “Using Notes as an OL
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Chapter 1 LotusScript and Visual Ba
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Object-Oriented Terminology LotusSc
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There are many good examples of how
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LotusScript only allows arrays and
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File I/O Code such as the following
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"frmMain::cmdUpdateDB_Click") then
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MessageBox Visual Basic developers
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Extending the Code Visual Basic pro
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Lotus Components You can add Window
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Lotus, creating a cut-down version
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Once you have created the object, y
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Public Function PostError(ErrNumber
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1. Consts move out of the class int
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In Visual Basic sending a message i
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Where LotusScript commands and synt
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Chapter 2 The Notes Integrated Deve
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Action Pane This is the narrow wind
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Run Area The three radio buttons sp
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4. Click the Methods twistie, and a
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When you enter structured programmi
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ut the results are different. Such
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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: The following figure shows a Visual
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: Following is an explanation of the
Page 153 and 154: We create and open a new document u
Page 155 and 156: 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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Following is an explanation of the
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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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