Pdf password encryption Library application component .net html winforms mvc microsoft_visual_basic_black

Visual Basic 6 Black Book:Toolbars, Status Bars, Progress Bars, And Coolbars

Figure 15.24 Using a simple status bar.

TIP: One reason programmers used to use simple status bars was to show the progress of an

operation by displaying a succession of dots (or other text) in the status bar’s single long panel.

However, you can use the progress bar control for that these days—see the next topic in this

chapter.

Adding A Progress Bar To A Form

The Testing Department is calling again. Why does downloading the 200MB data file your

program requires take so long? Well, you explain, the Internet is like that. They ask, but can’t

you at least show the user what progress the downloading operation is making? You take a look

at the Progress Bar Control tool in the Visual Basic toolbox. Sure, you say, no problem.

You can use progress bar controls to show the progress of a time-consuming operation. These

controls display a colored band that can grow (or shrink) as time goes on. To add a progress bar

to a form, follow these steps:

1. Select the Project|Components menu item.

2. Click the Controls tab in the Components dialog box.

3. Select the Microsoft Windows Common Controls item, and click on OK to close the

Components dialog box. This adds the Progress Bar Control tool to the Visual Basic

toolbox, as shown in Figure 15.3.

4. To place a progress bar in your form, just add it as you would any control, using the

Progress Bar Control tool.

5. Set the progress bar’s Min (default is 0) and Max (default is 100) properties as desired

to match the range of the operation you’re reporting on.

Now you’ve got a new progress bar in your form—but how do you use it? See the next topic.

Using A Progress Bar

Now that you’ve added a progress bar to your program and set its Min and Max properties, how

do you actually use it to display data? You use a progress bar’s Value property (available only at

runtime) to specify how much of the progress bar is visible. As you might expect, setting Value

to Min means none of the progress bar is visible, and setting it to Max means all of it is.

Let’s see an example. In this case, we’ll let the user click a button to display a progress bar

whose bar lengthens from Min to Max in 10 seconds. Add a progress bar, command button, and

a timer control to a form now. Set the timer’s Interval property to 1000 (in other words, 1000

milliseconds, or 1 second). We’ll leave the progress bar’s Min property at 0 and its Max

property at 100, the defaults.

When the form loads, we disable the timer and set the progress bar’s Value to 0:

Private Sub Form_Load()

file:///E|/Program%20Files/KaZaA/My%20Shared%...Basic%20-%20%20Black%20Book/ch15/489-493.html (3 of 4) [7/31/2001 9:01:25 AM]

Pdf password encryption - C# PDF Digital Signature Library: add, remove, update PDF digital signatures in C#.net, ASP.NET, MVC, WPF

Help to Improve the Security of Your PDF File by Adding Digital Signatures

convert locked pdf to word doc; creating secure pdf files

Pdf password encryption - VB.NET PDF Digital Signature Library: add, remove, update PDF digital signatures in vb.net, ASP.NET, MVC, WPF

Guide VB.NET Programmers to Improve the Security of Your PDF File by Adding Digital Signatures

pdf encryption; decrypt pdf file online

Visual Basic 6 Black Book:Toolbars, Status Bars, Progress Bars, And Coolbars

Timer1.Enabled = False

ProgressBar1.Value = 0

End Sub

When the user clicks the command button, we want to start the progress bar, so we enable the

timer. We also set the progress bar back to 0 (even though we did that when the form loads, the

user might want to restart the operation, which means he might click the button several times):

Private Sub Command1_Click()

ProgressBar1.Value = 0

Timer1.Enabled = True

End Sub

Finally, in the Timer event handler, Timer1_Timer, we add a value of 10 to the progress bar’s

Value property every second. We also check if we’ve filled the progress bar, and if so, disable

the timer:

Private Sub Timer1_Timer()

ProgressBar1.Value = ProgressBar1.Value + 10

If ProgressBar1.Value >= 100 Then Timer1.Enabled = False

End Sub

That’s all we need—now when the user clicks the command button, we start the progress bar in

motion, and it goes from 0 to 100 in 10 seconds, as shown in Figure 15.25.

Figure 15.25 Using a progress bar.

Table of Contents

Products |

About Us |

Privacy |

Ad Info |

Home

Use of this site is subject to certain

Terms & Conditions,

permission of

EarthWeb is prohibited.

file:///E|/Program%20Files/KaZaA/My%20Shared%...Basic%20-%20%20Black%20Book/ch15/489-493.html (4 of 4) [7/31/2001 9:01:25 AM]

C# PDF Password Library: add, remove, edit PDF file password in C#

outputFilePath = Program.RootPath + "\\" 3_pw_a.pdf"; // Create a setting object with user password which is Hello World"); // Set encryption level to AES

change pdf document security properties; add security to pdf file

Online Remove password from protected PDF file

Find your password-protected PDF and upload it. If there is no strong encryption on your file, it will be unlocked and ready to download within seconds.

secure pdf; decrypt pdf online

Visual Basic 6 Black Book:Toolbars, Status Bars, Progress Bars, And Coolbars

Click Here!

ITKnowledge

home

account

info

ITKnowledge

FAQ/help

site

map

Brief

Full

Advanced

Search Tips

To access the contents, click the chapter and section titles.

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

The code for this example is located in the progressbar folder on this book’s accompanying CD-

ROM.

Adding A Coolbar To A Form

Coolbars were first introduced in the Microsoft Internet Explorer, and they are toolbars that

present controls in bands. The user can adjust these bands by dragging a gripper, which appears at

left in a band. In this way, users can configure the coolbar by sliding the bands around as they

want.

To add a coolbar control to a form, follow these steps:

1. Select the Project|Components menu item.

2. Click the Controls tab in the Components dialog box.

3. Select the Microsoft Windows Common Controls-3 item, and click on OK to close the

Components dialog box. This adds the Coolbar Control tool to the Visual Basic toolbox, as

shown in Figure 15.3.

4. To place a coolbar in your form, just add it as you would any control, using the Coolbar

Control tool.

Now that you’ve added a coolbar to your form, maybe you’ll need to align it in that form? See the

next topic for the details.

file:///E|/Program%20Files/KaZaA/My%20Shared%...Basic%20-%20%20Black%20Book/ch15/493-497.html (1 of 4) [7/31/2001 9:01:28 AM]

Go!

Keyword

Please Select

Go!

VB.NET PDF Password Library: add, remove, edit PDF file password

String = Program.RootPath + "\\" 3_pw_a.pdf" ' Create a setting object with user password which is PasswordSetting("Hello World") ' Set encryption level to

secure pdf; change pdf security settings reader

C# PDF File Permission Library: add, remove, update PDF file

outputFilePath = Program.RootPath + "\\" 3_pw_a.pdf"; // Create a setting object with user password "Hello World". Hello World"); // Set encryption level to

decrypt pdf password online; create secure pdf online

Visual Basic 6 Black Book:Toolbars, Status Bars, Progress Bars, And Coolbars

Aligning Coolbars In A Form

Now that you’ve added a coolbar to your form, how do you align it to the top, bottom, or wherever

you want to place it? You use the Align property, setting it to one of these values:

• vbAlignNone—0 (the default)

• vbAlignTop—1

• vbAlignBottom—2

• vbAlignLeft—3

• vbAlignRight—4

Now that you’ve added a coolbar to your form and set its alignment as you want, how do you add

bands to that coolbar? See the next topic for the details.

Adding Bands To A Coolbar

The controls in a coolbar are usually organized into bands (and note that those controls can

themselves contain controls, as when you place toolbars in a band). To add a band to a coolbar,

just follow these steps:

1. Right-click the coolbar and select the Properties item in the menu that appears.

2. Click the Bands tab in the coolbar’s property pages, as shown in Figure 15.26.

Figure 15.26 The coolbar property pages.

3. Add new bands to the coolbar using the Insert Band button.

4. When finished, close the property pages by clicking on OK.

You can also add a band to a coolbar at runtime with its Bands collection, because that collection

supports the usual collection methods Add and Remove. For example, here’s how we add a new

band to a coolbar at runtime:

Private Sub Command1_Click()

Dim band5 As Band

Set band5 = CoolBar1.Bands.Add()

End Sub

Now that you’ve added bands to a coolbar, how do you install controls in those bands? Take a

look at the next topic to get the details.

Adding Controls To Coolbar Bands

You add controls to coolbar bands by setting the band’s Child property. The Child property can

only hold one child control, which you might think limits the power of coolbars, but in fact, that

control can be a complete toolbar. If you fill a coolbar’s bands with toolbar controls, users can

arrange and slide those toolbars around as they like.

file:///E|/Program%20Files/KaZaA/My%20Shared%...Basic%20-%20%20Black%20Book/ch15/493-497.html (2 of 4) [7/31/2001 9:01:28 AM]

VB.NET PDF File Permission Library: add, remove, update PDF file

As String = Program.RootPath + "\\" 3_pw_a.pdf" ' Create a password setting object with user password "Hello World Hello World") ' Set encryption level to

pdf secure; copy text from encrypted pdf

VB.NET PDF File Compress Library: Compress reduce PDF size in vb.

NET class. Also able to uncompress PDF file in VB.NET programs. Support PDF encryption in VB.NET class applications. A professional

decrypt pdf without password; decrypt a pdf file online

Visual Basic 6 Black Book:Toolbars, Status Bars, Progress Bars, And Coolbars

To add a control to a coolbar band, follow these steps:

1. Add the control (such as a toolbar) you want to place in a band to the coolbar by

drawing it inside the coolbar.

2. Right-click the coolbar and select the Properties item in the menu that appears.

3. Click the Bands tab in the coolbar’s property pages, as shown in Figure 15.27.

Figure 15.27 Adding a toolbar to a coolbar band.

4. Select the band you want to work with.

5. Set the band’s Child property to the control you want to add to that band, such as

Toolbar1 in Figure 15.27.

6. Close the coolbar’s property pages by clicking on OK.

You can also set a band’s Child property at runtime, as in this example where we set the control in

the coolbar’s first band to Toolbar1:

Private Sub Command1_Click()

Set CoolBar1.Bands(1).Child = Toolbar1

End Sub

Handling Coolbar Control Events

You’ve set up the coolbar you want and placed a few toolbars in the various bands of that coolbar.

Now how do you handle button clicks in those toolbars (or other controls you’ve place in a

coolbar’s bands)?

Handling events from controls in coolbar bands is easy—just connect event handlers to those

controls as you normally would (in other words, if they weren’t in a coolbar). Here’s an example

where we’ve added a toolbar, Toolbar1, to a coolbar. You can add buttons to the toolbar as you

would normally—just open the toolbar’s property pages and use the Insert Button button. To

handle Click events for those button, you just double-click the toolbar’s buttons at design time,

which opens the matching Click event handler:

Private Sub Toolbar1_ButtonClick(ByVal Button As ComctlLib.Button)

End Sub

Then you just proceed as you would in a normal toolbar, such as adding this code where we

indicate to users which button they’ve clicked:

Private Sub Toolbar1_ButtonClick(ByVal Button As ComctlLib.Button)

MsgBox "You clicked button " & Button.Index

End Sub

file:///E|/Program%20Files/KaZaA/My%20Shared%...Basic%20-%20%20Black%20Book/ch15/493-497.html (3 of 4) [7/31/2001 9:01:28 AM]

VB.NET Word: How to Convert Word Document to PNG Image Format in

and document formats, including converting Word to PDF in VB protection by utilizing the modern Advanced Encryption Standard that converts a password to a

change security settings pdf; create encrypted pdf

C# Image: How to Annotate Image with Freehand Line in .NET Project

Tutorials on how to add freehand line objects to PDF, Word and TIFF SDK; Protect sensitive image information with redaction and encryption annotation objects;

create pdf the security level is set to high; copy text from locked pdf

Visual Basic 6 Black Book:Toolbars, Status Bars, Progress Bars, And Coolbars

Table of Contents

Products |

About Us |

Privacy |

Ad Info |

Home

Use of this site is subject to certain

Terms & Conditions,

permission of

EarthWeb is prohibited.

file:///E|/Program%20Files/KaZaA/My%20Shared%...Basic%20-%20%20Black%20Book/ch15/493-497.html (4 of 4) [7/31/2001 9:01:28 AM]

C# Image: C#.NET Code to Add HotSpot Annotation on Images

Protect sensitive information with powerful redaction and encryption annotation objects to provide powerful & profession imaging controls, PDF document, image

pdf security remover; change pdf document security

C# Image: Add Watermark to Images Within RasterEdge .NET Imaging

powerful and reliable color reduction products, image encryption decryption, and even to provide powerful & profession imaging controls, PDF document, image to

decrypt pdf online; creating secure pdf files

Visual Basic 6 Black Book:Image Lists, Tree Views, List Views, And Tab Strips

ITKnowledge

home

account

info

ITKnowledge

FAQ/help

site

map

Brief

Full

Advanced

Search Tips

To access the contents, click the chapter and section titles.

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

Chapter 16

Image Lists, Tree Views, List Views, And

Tab Strips

If you need an immediate solution to:

Adding An Image List To A Form

Adding Images To Image Lists

Using The Images In Image Lists

Setting Image Keys In An Image List

Adding A Tree View To A Form

Selecting Tree View Styles

Adding Nodes To A Tree View

Adding Subnodes To A Tree View

Adding Images To A Tree View

Expanding And Collapsing Nodes (And Setting Node Images To Match)

Handling Tree View Node Clicks

file:///E|/Program%20Files/KaZaA/My%20Shared%...Basic%20-%20%20Black%20Book/ch16/499-504.html (1 of 5) [7/31/2001 9:01:30 AM]

Go!

Keyword

Please Select

Go!

Visual Basic 6 Black Book:Image Lists, Tree Views, List Views, And Tab Strips

Adding A List View To A Form

Adding Items To A List View

Adding Icons To List View Items

Adding Small Icons To List View Items

Selecting The View Type In List Views

Adding Column Headers To A List View

Adding Column Fields To A List View

Handling List View Item Clicks

Handling List View Column Header Clicks

Adding A Tab Strip To A Form

Inserting Tabs Into A Tab Strip Control

Setting Tab

Setting Tab Images

Using A Tab Strip To Display Other Controls

Handling Tab Clicks

In Depth

In this chapter, we’re going to take a look at image list controls and some of the

controls that use image lists: tree views, list views, and tab strips. These controls are

part of the Windows common controls package and are being used more and more

frequently in Windows programs.

We’ll get an overview of each control before tackling the programming issues. You

add all the controls in this chapter to the Visual Basic toolbox by selecting the

Project|Components menu item, clicking the Controls tab in the dialog box that opens,

selecting the entry marked Windows Common Controls, and clicking on OK to close

the Components dialog box.

Image Lists

Image list controls are invisible controls that serve one purpose: to hold images that are

used by other controls. Usually, you add images to an image list control at design time,

using the Insert Picture button in the control’s property pages. You can also add images

to an image list at runtime, using the Add method of its internal image collection,

ListImages.

To use the images in the image list, you usually associate the image list with a

Windows common control (which has an ImageList property). For each item in the

common control, such as a tab in a tab strip control, you can then specify either an

index into the image lists’ ListImages collection or an image’s key value to associate

that image with the item.

You can also reach the images in an image list with the ListImages collection’s

Picture property. For example, if you wanted to use an image list with a control that’s

file:///E|/Program%20Files/KaZaA/My%20Shared%...Basic%20-%20%20Black%20Book/ch16/499-504.html (2 of 5) [7/31/2001 9:01:30 AM]

Visual Basic 6 Black Book:Image Lists, Tree Views, List Views, And Tab Strips

not a Windows common control, such as a picture box, you can assign the first image

in the image control to that picture box this way:

Picture1.Picture = ImageList1.ListImages(1).Picture

The Image List Control tool appears in the Visual Basic toolbox in Figure 16.1 at

bottom, on the right.

Figure 16.1 The Image List Control tool.

Tree Views

If you’ve used the Windows Explorer, you’re familiar with tree views. Tree views

present data in a hierarchical way, such as the view of directories that appears in the

tree view at left in the Windows Explorer, as shown in Figure 16.2.

Figure 16.2 The Windows Explorer.

Trees are composed of cascading branches of nodes , and each node usually consists of

an image (set with the Image property) and a label (set with the Text property). Images

for the nodes are supplied by an image list control associated with the tree view

control.

A node can be expanded or collapsed, depending on whether or not the node has child

nodes. At the topmost level are root nodes, and each root node can have any number of

child nodes. Each node in a tree is actually a programmable Node object, which

belongs to the Nodes collection. As with other collections, each member of the

collection has a unique Index and Key property that allows you to access the properties

of the node.

The Tree View Control tool is the thirteenth tool down on the right in Figure 16.3.

Figure 16.3 The Tree View Control tool.

List Views

The list view control displays, as its name implies, lists of items. You can see a list

view at right in the Windows Explorer in Figure 16.2. There, the list view is displaying

a list of files. Each item in a list view control is itself a ListItem object and can have

both text and an image associated with it. The ListItem objects are stored in the list

view’s ListItems collection.

file:///E|/Program%20Files/KaZaA/My%20Shared%...Basic%20-%20%20Black%20Book/ch16/499-504.html (3 of 5) [7/31/2001 9:01:30 AM]

Visual Basic 6 Black Book:Image Lists, Tree Views, List Views, And Tab Strips

List views can display data in four different view modes:

• Icon mode—Can be manipulated with the mouse, allowing the user to drag

and drop and rearrange objects.

• SmallIcon mode—Allows more ListItem objects to be viewed. Like the Icon

view mode, objects can be rearranged by the user.

• List mode—Presents a sorted view of the ListItem objects.

• Report mode—Presents a sorted view, with sub-items, allowing extra

information to be displayed.

The list view in the Windows Explorer in Figure 16.2 is displaying files in Report view

mode (which is the only mode that has columns and column headers). In this mode,

you add sub-items to each item, and the text in those sub-items will appear under the

various column headings.

You usually associate two image list controls with a list view: one to hold the icons for

the Icon view mode, and one to hold small icons for the other three modes. The size of

the icons you use is determined by the image list control (the available sizes are 16 ×

16, 32 × 32, 48 × 48, and Custom).

The List View Control tool is the fourteenth control down on the left in Figure 16.4.

Figure 16.4 The List View Control tool.

Tab Strips

A tab strip control presents the user with a row (or rows) of tabs that acts like the

dividers in a notebook or the labels on a group of file folders. Like an increasing

number of other controls (such as coolbars and tree views), tab strips represent one of

Microsoft’s attempts to compact data into less and less of the screen (because there’s

getting to be more and more data). Using tab strips, the user can click a tab and see a

whole new panel of data, like opening a file folder. In fact, we’ve already used tab

strips in many parts of this book already to set Visual Basic options or to include

ActiveX controls in our programs.

Table of Contents

file:///E|/Program%20Files/KaZaA/My%20Shared%...Basic%20-%20%20Black%20Book/ch16/499-504.html (4 of 5) [7/31/2001 9:01:30 AM]

Documents you may be interested