InputColor

InputColor[initial_RGBColor, opts___] _EventObject
InputColor[{r,g,b}, opts___] 
InputColor[color_Hue, opts___]

represents a UI element - color picker

Event generation

Emits picked color in a form {r,g,b} or {r,g,b,a}.

Options

`"Label"`

Text for a label

`"Description"`

Text description

`"Style"`

Applies CSS styles to the element

`"Class"`

Applies CSS classes to the element

`"LabelStyle"`

Applies CSS classes to the label

`"LabelClass"`

Applies CSS classes to the label

`"ShowAlpha"`

Allows to pick alpha value with a separate slider. By the default is False.

`"Topic"`

The default topic/pattern is "Default". Specifies an event-pattern used on emitting (see more on EventFire patterns topics)

Application

A basic color picker element:

Module[{col = {1,0,0}},
  {
    EventHandler[InputColor[col], (col=#)&],
    Graphics[{
      RGBColor[col//Offload], 
      Triangle[],
      RGBColor[({1,1,1}-col)//Offload],
      Disk[{0,0},0.2]
    }]
  } // Column 
]

Chaining events

One can reuse another event

InputCheckbox[event_EventObject, rest__]