Computer Programming Concepts and Visual Basic David I. Schneider

24 Computer Programming Concepts and Visual Basic
4. Click on the command button to select it, and then enlarge it to accommodate
the phrase “Please Push Me” on one line.
5. Run the program, and click on the command button. The command button
appears to move in and then out. In Section 2.2, we write code that is activated
when a command button is pushed.
6. End the program, and select the command button.
7. From the Properties window, edit the Caption setting by inserting an ampersand
(&) before the first letter, P. Notice that the ampersand does not show on the
button. However, the letter following the ampersand is now underlined. See Figure
2-10. Pressing Alt+P while the program is running executes the same code
as clicking the command button. Here, P is referred to as the access key for the
command button. (The access key is always specified by the character following
the ampersand.)
FIGURE 2-10 Designating P as an Access Key
A LABEL WALKTHROUGH
1. Press Alt/F/N and double-click on Standard EXE to start a new program. There
is no need to save anything.
2. Double-click on the label icon to place a label in the center of the form. (The
label icon, a large letter A, is the third icon in the Toolbox.)
3. Activate the Properties window, highlight the Caption property, and type “Enter
Your Phone Number”. Such a label would be placed next to a text box into
which the user will enter a phone number.
4. Click on the label to select it, and then widen it until all words are on the same
line.
5. Make the label narrower until the words occupy two lines.
6. Activate the Properties window, and double-click on the Alignment property.
Double-click two more times and observe the label’s appearance. The combination
of sizing and alignment permits you to design a label easily.
7. Run the program. Nothing happens, even if you click on the label. Labels just
sit there. The user cannot change what a label displays unless you write code to
allow the change.
8. End the program.
A PICTURE BOX WALKTHROUGH
1. Press Alt/F/N and double-click on Standard EXE to start a new program. There
is no need to save anything.