Teach Yourself Borland C++ in 14 Days - portal

476 Day 13
for project and form files because a project file and a form file cannot have the same name.
For single-form applications, naming the project and its one form differently may seem a bit
strange, but C++Builder requires it nonetheless.
Begin constructing your Web browser form by dropping a TTabControl component on the
top of the form. This control will list URLs as you browse them so that you can easily return
to one you’ve already visited. Set the control’s Align property to alTop. This will make it
expand to occupy the top of the form. Thanks to alTop, your TTabControl will always occupy
the topmost region of the form, no matter how large or how small the form becomes. You
can drag the TTabControl’s bottom border to size it vertically.
Next, change the TTabControl component’s TabWidth property to something in the neighborhood
of 145 pixels. This will ensure that each tab is large enough to display simple URLs
without allowing any one tab to take up too much space. Figure 13.1 shows what your
TTabControl might look like.
Figure 13.1.
Your Web browser
form with
TTabControl
in place.
Now that the top of the browser form is in place, let’s set up the bottom. Drop a TPanel
component onto the bottom of the form and set its Align property to alBottom. As with the
TTabControl component, this will cause the TPanel control to always occupy the bottom of
the form, regardless of how the form is resized.
Press F11 to bring up the Object Inspector; then delete TPanel’s Caption property. Set its
TabOrder property to 0. This will cause TPanel’s default component (which you’ll drop in
place momentarily) to be the form’s default when it first displays.
After you’ve set up the TPanel, you’re ready to drop its child controls onto it. Begin by
dropping another TPanel component onto the first TPanel’s right edge. Set the new TPanel’s
Align property to alRight and delete its Caption property. This will allow you to position
controls so that they are always on the form’s far right, no matter how the form is resized.
Next, drop two TBitBtn components onto the new TPanel. Set the Caption property of the
first button to Go! and the Caption property of the second to Home. You can set the Glyph