Teach Yourself Borland C++ in 14 Days - portal

306 Day 8
Table 8.8. Properties for the Label component.
Property Description
AutoSize When set to true, the label will size itself according to the text
contained in the Caption property. When set to false, text will
be clipped at the right edge of the label.
FocusControl A label is a non-windowed component, so it cannot receive input
focus and it cannot be tabbed to. Sometimes, however, a label
serves as the text for a control such as an edit control. In those
cases you could assign an accelerator key to the label (using the
ampersand) and then change the FocusControl property to the
name of the control you want to receive focus when the label’s
accelerator key is pressed.
ShowAccelChar Set this property to true if you want an actual ampersand to
show up in the label rather than the ampersand serving as the
accelerator key.
Transparent When this property is set to true, the Color property is ignored
and anything beneath the label shows through. This is useful for
placing labels on bitmap backgrounds, for instance.
WordWrap When set to true, text in the label will wrap around to a new line
when it reaches the right edge of the label.
The ScrollBar Component
The ScrollBar component represents a standalone scrollbar. It’s standalone in the sense that
it is not connected to an edit control, a list box, a form, or anything else. I have not found
that the scrollbar is a control I use very frequently. Certain types of applications use scrollbars
heavily, of course, but for day-in, day-out applications its use is fairly uncommon. The
scrollbar’s performance is set by setting the Min, Max, LargeChange, and SmallChange
properties. The scrollbar’s position can be set or obtained via the Position property. The Kind
property allows you to specify a horizontal or vertical scrollbar.
The Panel Component
The Panel component is sort of a workhorse in C++Builder. There is almost no limit to what
you can use panels for. Panels can be used to hold speedbar buttons, to display text labels such
as a title for a form, display graphics, and to hold regular buttons as well. One of the
advantages to a panel is that components placed on the panel become children of the panel.