Here we Learn about the What is Dialog Box? Definition, Properties and Type of Dialog Box in Visual Programming (VP).
Definition and Meaning of Dialog Box
It is the way of engaging the user in a conversation by offering information and requesting some input.
It makes an user to move in to and fro bouncing process between the main window and its dialog box.
A dialog box presented in an application , moves the action out of mainstream program ; abandoning the main plot to develop secondary issue.
Dialogs, for good or bad , interrupt the interaction and make the user react to the program instead of driving it.
The dialog boxes are good for presenting infrequently used functions and setting the dialog serves to isolate the more frequently used functions and settings.
Dialog boxes are also well – it is appropriate to keep in mind the information related to a single topic, such as the properties of an object in an application.
A dialog box serves the two kind of master:
- Frequent user: Who is familiar with the program and uses them to control its more advance or dangerous facilities.
- Infrequent user: Who is unfamiliar with the scope and use of the program and who is using to learn the basic.
Properties of Dialog Box
- The dialog boxes have buttons, combo boxes and other gizmos on their surface.
- They can be placed where we need no any conventional plan is necessary.
- Every dialog box have at least one terminating command, a control that activated, causes dialog box to shut down and go away.
- Generally we offer two terminating command OK and CANCEL.
Type of Dialog Boxes
The dialog boxes are divided into two categories.
- Modal Dialog Box
- Modeless Dialog Box
1) Modal Dialog Box
Must be dismissed by user before any work can be done outside the dialog in the same application.(But you can work in another application).
There are two types of modal dialog box
- Application model: The dialog box only stops their owning application.
- System model: can’t even click to another application (example, the Control-Alt-Delete dialog).
Purposes of modal dialogs:
- collect data from user
- present data to the user
- permit user to control application data
2) Modeless Dialog Box:
User can continue without dismissing the dialog box just reminding it and continuing it in the same application
3) Property dialog box
Presents a user with the settings and characteristics of a selected objects and enables the user to make changes over it.
4) Function dialog box
They are summoned from the menu. They are most frequently modal dialog boxes, and they control a single function like printing inserting and many others.
5) Bulletin dialog box
They are best characterized as an ubiquitous error.
6) Process dialog box
They are like bulletins, are erected at the program’s discretion rather than the user request.
Alters the user to the program’s inability to respond normally.