Teach Yourself Borland C++ in 14 Days - portal

6
190 Day 6
TIP
C++Builder keeps a list of the files and projects you have used most
recently. Chose File | Reopen to view the MRU (most recently used)
list. The MRU list is divided into two parts. The top part shows the
projects you have used most recently, and the bottom part shows the
individual files that you have used most recently. Just click on one of
the items to reopen that project or file.
First we’ll add a button to the form that will display the About dialog box:
1. Bring the main form into view. Choose the button component from the Component
Palette and drop a button on the form.
2. Arrange the two buttons that are now on the form to balance the look of the form.
3. Change the Name property of the new button to AboutButton and the Caption
property to About....
4. Double-click the AboutButton you just created on the form. The Code Editor is
displayed with the cursor placed in the event-handler function. Add this line of
code at the cursor:
AboutBox->ShowModal();
We haven’t actually created the About box yet, but when we do we’ll name it AboutBox so we
know enough to go ahead and type the code to display the About box.
Now we’ll create the dialog box itself:
1. Create a new form (click the New Form button on the toolbar). Size the form to
the size of a typical About box (roughly the same size as the form named
SecondForm that we created earlier).
2. Change the Name property to AboutBox and change the Caption property to About
This Program.
3. Locate the BorderStyle property (it’s just above Caption) and change it to
bsDialog.
4. Now add three text labels to the box. Edit the labels so that the About box resembles
that in Figure 6.11. (You can type any text you want, of course.) You can leave
the default names C++Builder generates for the text labels’ Name properties. We
aren’t actually going to do anything with the Name property, so we don’t need a
descriptive name.