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Reference for unit 'fpg_ColorWheel' (#fpgui)

TfpgColorWheel

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

A colorwheel component.

Declaration

Source position: fpg_colorwheel.pas line 32

`type TfpgColorWheel = class(TfpgWidget)`
`public`
`constructor Create(); override;`
`destructor Destroy; override;`
`property Hue: LongInt; [r]`		Hue value of selected color.
`property Saturation: Double; [r]`		Saturation value of selected color.
`procedure SetSelectedColor();`		Sets a new color value programatically.
`published`
`property Align: TAlign;`
`property BackgroundColor: TfpgColor;`
`property Enabled: Boolean;`
`property ValueBar: TfpgValueBar; [rw]`		Used to link the ColorWheel to the ValueBar component.
`property MarginWidth: LongInt; [rw]`		The width of the black area around the wheel.
`property CursorSize: LongInt; [rw]`		Size of the crosshair.
`property WhiteAreaPercent: LongInt; [rw]`		The percentage from the centre of the wheel.
`property OnChange: TNotifyEvent; [rw]`		This event is triggered when a new color has been selected in the wheel.
`end;`

Inheritance

`TfpgColorWheel`		A colorwheel component.
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`TfpgWidget`		This forms the basis of any visual widget in fpGUI
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`TfpgWindow`		Encapsulates a top level or child window
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`TfpgWindowImpl`		Maps to a backend specific base class
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`TfpgX11Window`		Implements XLib specific windowing functionality
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`TfpgWindowBase`		Abstract class use for representing a Window or Widget
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`TfpgComponent`		A descendant of the FPC TComponent class
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`TComponent`
?
`TObject`

Description

This component draws a ColorWheel at runtime. This allows the user to select the Hue and Saturation values in the HSV color range.