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Visual Basic 6 Black Book:Deploying Your Program: Creating Setup Programs, Help Files, And Online Registration

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Visual Basic 6 Black Book

(Publisher: The Coriolis Group)

Author(s): Steven Holzner

ISBN: 1576102831

Publication Date: 08/01/98

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Table of Contents

Building Online Help Into Your Application

The Testing Department is calling again. The company’s software is changing too fast

to keep up with creating new Help files and sending them out to users all the

time—what can we do? You suggest, how about some online Help files?

You can build support for online Help files into Visual Basic applications easily by

using the Web browser control. Using that control, you can connect the users directly

to the company Web site and let them view Help files in HTML format.

Let’s see an example. Using the Visual Basic Application Wizard, create a new project

named “onlinehelp”. When the Application Wizard asks about Internet connectivity, as

shown in Figure 30.19, click the Yes option button and enter the Help Web page you

want to display to the user as the startup page for the program’s built-in Web browser,

as also shown in that figure. Then complete building the application with the

Application Wizard by clicking the Finish button.

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Visual Basic 6 Black Book:Deploying Your Program: Creating Setup Programs, Help Files, And Online Registration

Figure 30.19 Adding an online Help page to a Visual Basic application.

To make the application’s Web browser look less like a browser and more like online

Help, use the Visual Basic menu editor to move the Web Browser menu item from the

View menu to the Help menu and change its caption to Online Help. In addition,

remove all the controls from the frmBrowser form except for the Web browser

control, brwWebBrowser. Finally, take all code out of the frmBrowser form except

for this code, which displays the starting page when the user opens the browser:

Public StartingAddress As String

Private Sub Form_Load()

Me.Show

If Len(StartingAddress) > 0 Then

brwWebBrowser.Navigate StartingAddress

End If

End Sub

And that’s it—now when the user selects the Online Help item in the Help menu, the

Web browser appears and connects to the Help page you’ve selected online, as shown

in Figure 30.20. Congratulations—now you’re supporting online Help in your

application. The code for this example is located in the FrmBrowser folder on this

book’s accompanying CD-ROM.

Figure 30.20 Supporting online Help in a Visual Basic application.

Creating Online User Registration

The Testing Department has sent an email. Isn’t there some way to keep track of your

application’s users? How about adding online registration to your application? Hmm,

you think, how does that work?

To let your application’s users register their new purchase easily, you can add online

registration to your program. When users click the Online Registration menu item in

the Help menu, a dialog box appears asking them to enter their name and email

address. When they do and click a button marked Register, the application connects to

the Internet and sends the recorded information to you.

We’ll see how this works in the next few topics in this chapter, where we use the FTP

protocol to upload user registrations directly to an FTP site. This example, the

onlinereg application, lets the user select a menu item, Register Online, in the Help

menu, and displays an online registration form, Form2, as shown in Figure 30.21.

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Visual Basic 6 Black Book:Deploying Your Program: Creating Setup Programs, Help Files, And Online Registration

When users enter their name and email address in the registration form and click the

button labeled Register, the program sends the data in that form to an FTP server.

Figure 30.21 The onlinereg application’s online registration form.

We’ll write the code for the registration form, Form2, now. When users enter their

name and email address and click the Register button, we start by writing that

information out to a temporary file, along with the name of the application the users are

registering, as well as the time and date:

Private Sub Command1_Click()

Open "c:\temp.dat" For Output As #1

Print #1, "Registering SuperDuperDataCrunch" & vbCrLf

Print #1, "Name: " & Text1.Text & vbCrLf

Print #1, "email: " & Text2.Text & vbCrLf

Print #1, "Time: " & Format(Now)

Close #1

...

End Sub

This code stores the user information to the temp.dat file, like this:

Registering SuperDuperDataCrunch

Name: steve

email: steve@steveco.com

Time: 5/5/99 10:02:23 AM

This is the data that we will upload to the FTP server in the next topic.

TIP: Note that the file name here, temp.dat, may well conflict with an existing file.

To make sure that does not happen, you can use the Visual Basic GetTempName

method to get a name for the temporary file in which to store the user’s registration

data.

Table of Contents

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Visual Basic 6 Black Book:Deploying Your Program: Creating Setup Programs, Help Files, And Online Registration

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Visual Basic 6 Black Book:Deploying Your Program: Creating Setup Programs, Help Files, And Online Registration

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Visual Basic 6 Black Book

(Publisher: The Coriolis Group)

Author(s): Steven Holzner

ISBN: 1576102831

Publication Date: 08/01/98

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Table of Contents

Uploading Online Registration Information To An FTP Server

In the previous topic, we’ve stored the registration information we want to upload to the FTP server in a file,

temp.dat. To upload the user registration data, we add an Internet transfer control, Inet1, to the onlinereg

application’s registration form, Form2 (see Chapter 21 for more details on the Internet transfer control).

After writing the registration form to disk, we connect to the FTP server to upload the data to by using the

Internet transfer control like this, where we set the control’s URL property to the address of the FTP server

and set the UserName and Password properties as required:

Private Sub Command1_Click()

Open "c:\temp.dat" For Output As #1

Print #1, "Registering SuperDuperDataCrunch" & vbCrLf

Print #1, "Name: " & Text1.Text & vbCrLf

Print #1, "email: " & Text2.Text & vbCrLf

Print #1, "Time: " & Format(Now)

Close #1

Inet1.URL = "

ftp://ftp.server.com"

Inet1.UserName = "steve"

Inet1.Password = "secret"

...

Here we are using the connection protocol used by many FTP servers, which sets the current FTP directory

based on the username you log in with. If you need to set the current directory yourself, use the FTP CD

command, using the Internet transfer control’s Execute method.

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Visual Basic 6 Black Book:Deploying Your Program: Creating Setup Programs, Help Files, And Online Registration

TIP: You may want to encode any password that you embed in your code for security purposes.

To actually upload the file temp.dat, we use the Internet transfer control’s Execute method to execute the

FTP Put command like this, where we name the file reg.dat when uploaded to the server:

Private Sub Command1_Click()

Open "c:\temp.dat" For Output As #1

Print #1, "Registering SuperDuperDataCrunch" & vbCrLf

Print #1, "Name: " & Text1.Text & vbCrLf

Print #1, "email: " & Text2.Text & vbCrLf

Print #1, "Time: " & Format(Now)

Close #1

Inet1.URL = "ftp://ftp.server.com"

Inet1.UserName = "steve"

Inet1.Password = "secret"

Inet1.Execute , "PUT c:\temp.dat reg.dat"

End Sub

This uploads the file with the user registration information to the FTP site you’ve selected:

Registering SuperDuperDataCrunch

Name: steve

email: steve@steveco.com

Time: 5/5/99 10:02:23 AM

TIP: Note that we’ve uploaded the file and named it reg.dat on the FTP server; using that name for all

uploads will cause a conflict. You should use a unique file name for each separate file; for example, you can

incorporate the date and time of day in the file name.

Now that we’ve uploaded the registration data, we need to terminate the FTP connection and delete the

temporary file, and we’ll do that in the next topic.

Concluding The FTP Transfer Of The Online Registration Information

In the previous few topics, we’ve sent user registration data to an FTP site in the onlinereg application. Now

that the upload operation is complete, we will close the FTP connection in the Internet transfer control’s

StateChanged event handler:

Private Sub Inet1_StateChanged(ByVal State As Integer)

If State = icResponseCompleted Then

Inet1.Execute , "Close"

...

In addition, we delete the temporary file we’ve created and hide the registration form this way:

Private Sub Inet1_StateChanged(ByVal State As Integer)

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Visual Basic 6 Black Book:Deploying Your Program: Creating Setup Programs, Help Files, And Online Registration

If State = icResponseCompleted Then

Inet1.Execute , "Close"

Dim FileSystemObject As Object

Set FileSystemObject = CreateObject("Scripting.FileSystemObject")

FileSystemObject.DeleteFile "c:\temp.dat"

Form2.Hide

End If

End Sub

And that’s it—we’ve uploaded the user registration data to the specified FTP site. Congratulations, now

you’re supporting online registration. The code for this example is located in the onlinereg folder, and the

code that displays that form is located in the Form1 folder, both on this book’s accompanying CD-ROM.

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Visual Basic 6 Black Book:Index

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Visual Basic 6 Black Book

(Publisher: The Coriolis Group)

Author(s): Steven Holzner

ISBN: 1576102831

Publication Date: 08/01/98

Bookmark It

Search this book:

Table of Contents

Index

Special Characters

& (ampersand)

& operator, use of, 37

access characters, 168–171, 235

* (asterisk), 101

$(AppPath) macro, 1047

32-bit MAPI DLLs, installing, 718

+ operator, 37

| (pipe symbol), 356

2D, 3D area charts, 385–387

2D, 3D bar charts, 387

2D, 3D combination charts, 390–392

2D, 3D line charts, 384–385

2D, 3D step charts, 388–390

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Visual Basic 6 Black Book:Index

_ (underscore), 38

Abs function, 113

Access characters, 155, 168–171, 235, 447

Action property, 346, 720, 897

Activating OLE objects, 912–914

Active control, determining, 971–972

Active form, determining, 992–993

ActiveControl property, 608, 915, 971–972

ActiveForm property, 608, 992–993

ActiveX components, 650, 652. See also ActiveX controls; ActiveX documents;

Code components.

ActiveX Control Interface Wizard, 669, 675, 680

ActiveX controls, 650–651, 652

adding to DHTML pages, 713–715

adding to projects, 66–67

adding to toolbox, 664

constituent controls, 651, 659–661

creating, 653–658

embedding in Web pages, 657

event handlers, 659

events

adding, 678–680

Initialize event, 672

Paint event, 657

ReadProperties event, 671–672

Terminate event, 672

WriteProperties event, 671–672

files created for, 651

graphics, 655, 657

methods

adding, 674–678

Initialize method, 655

RaiseEvent method, 679

properties

adding at design time, 666–670

Ambient property, 666

AutoRedraw property, 657

displaying, 47

Extender property, 666

Let and Get procedures, 667–668, 669

making properties persistent, 671–674

property pages, 680–681

PropertyBag objects, 671, 693–694

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Visual Basic 6 Black Book:Index

referenced in VBP files, 25

registering with Windows, 67, 656, 664

testing, 655–656, 661–664

ActiveX Data Objects. See ADO (ActiveX Data Objects).

ActiveX Designers, 77

ActiveX DLLs, 935, 945

methods, passing arguments to, 951–953

registering, 957

threading models, 936, 963

ActiveX Document Migration Wizard, 683

ActiveX documents, 651, 652. See also DHTML pages; Web pages.

constituent controls, 684–689, 689

converting Visual Basic projects to, 683

creating, 682–683

DLLs vs. EXE files, 652, 684

DOB files, 686, 690–691

events

ReadProperties event, 693–694

WriteProperties event, 693–694

files created for, 651

integrating Web browsers into, 691–692

opening from Internet, 691–692

properties, 693–694

testing, 683, 690–691

VBD files, 686, 690–691

ActiveX EXEs, 935, 945

creating, 943–945

methods, passing arguments to, 951–953

properties, setting, 947

registering, 958

threading models, 936, 963

ActiveX MAPI controls, 697

Add Field dialog box, Visual Data Manager, 832

Add Form dialog box, 58–59, 178

Add-In Manager, 66

Add-Ins menu, IDE, 43, 66

Add method

Buttons collection, 482–484

collections, 110

ListImages collection, 507

ListItems collection, 520–521

ListSubItems collection, 527–528

Nodes collection, 512, 513

Panels collection, 485

Tabs collection, 533

Add Procedure dialog box, 667, 674–680, 947–949, 950

AddItem method, 254–255, 265

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