FMX.StdCtrls.TArcDial
Delphi
TArcDial = class(TPresentedControl, IValueRange)
C++
class PASCALIMPLEMENTATION TArcDial : public Fmx::Controls::Presentation::TPresentedControl
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| class | public | FMX.StdCtrls.pas FMX.StdCtrls.hpp |
FMX.StdCtrls | FMX.StdCtrls |
Description
Represents a general-purpose knob-style rotating button.
Use a TArcDial button in applications wherever you need to provide the user with a rotating button that resembles a knob. This arc dial control variates its Value in degrees, so if you want to use it as a linear control for varying the progress of a progress bar, for instance, you need to programmatically make a conversion from degrees to linear movement.
Control whether this arc dial component displays the value or not using the FMX.StdCtrls.TArcDial.ShowValue property.