Page 56 - DCAP408_WEB_PROGRAMMING

Windows Programming

Notes 2. Do one of the following:
 Click the Cast Member Properties button.
 Right-click (Windows) or Control-click (Mac), and select Cast Member Properties
from the context menu.
 Select Window > Property Inspector. The Property inspector displays only those
properties associated with the selected cast member.

View the Cast Member Number

See the Cast Member Number field in the upper-right corner of the Cast window.

Self Assessment

Fill in the blank:
5. The controls at the top of the Cast window are the similar in both the List and
................................. views.

4.5 Button Controls

A Button is a Windows control utilized to initiate an action. From the user’s point of view, a
button is functional when clicked, in which case the user places the mouse on it and presses one
of the mouse’s buttons.
There are numerous types of buttons. The most general and regularly utilized is a rectangular
object that the user can simply identify. In some programming surroundings, this classic type is
known as a command button. There are other controls that can serve as click controls and initiate
the similar behavior as if a button were clicked.

From the programmer’s point of view, a button requires a host, like a dialog box.
4.5.1 Creating a Push Button

To diagrammatically add a button to a dialog box, in the Toolbox, click Button and click the
required location on the dialog box. By default, when you visually generate a dialog box,
Microsoft Visual C++ adds two buttons: OK and Cancel. If you don’t require these buttons, click
one and press Delete.
The most accepted button utilized in Windows applications is a rectangular control that exhibits
a word or a short sentence that directs the consumer to access, dismiss, or initiate an action or
suite of actions. In Microsoft Visual C++ applications, this control is executed by means of the
Button control from the Toolbox window.
In the MFC, a button depends on the CButton class, which is obtained from CWnd. Thus, to
programmatically obtain a button, you can create a pointer to CButton and initialize it by
means of the new operator.

4.5.2 Characteristics of a Command Button

Similar to every Windows control, a button is identified by its IDentifier. Since a button is a
control, by convention, its identifier’s name begins with IDC (the C stands for Control).

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