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TIP
Creating Applications in C++Builder
When the Object Repository is in the Details view, you can click on a
column header (Name, Description, Date, or Author) to instantly sort
by that category.
Creating New Objects from the Object Repository
Certainly the most basic use of the Object Repository is creating a new object using an object
from the Repository. To illustrate, let’s create a simple application with a main form, an
About dialog box, and a second form. Follow these steps:
1. Be sure no other application is open. Choose File | New from the main menu. The
Object Repository is displayed.
2. Click on the Application icon and click OK to create a new application. A new
application is created, and a blank form is displayed.
3. Place two buttons on the form. Change the Caption property of one of the buttons
to About... and the Caption property of the other button to Display Form2.
Change the Name properties if desired.
4. Choose File | New from the main menu. The Object Repository is again displayed.
5. Click on the Forms tab in the Object Repository.
6. Choose the About box object. Be sure that the Copy radio button is selected, and
click OK to create a new About Box form. The About box is displayed. Change
any properties as needed.
7. Modify the About box as desired. (Enter your own information, change the icon,
change the size and position, and so on.)
8. Select File | New from the main menu again. The Object Repository is displayed
for the third time.
9. Click on the Forms tab and choose the Dual list box object. Click OK to close the
Object Repository. A dual list box form is displayed. (I had you choose this one
just so you could see it.)
10. Write event handlers for the two buttons that display the About box and the
second form as required.
11. Compile, run, and test the program.
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