InputButton

InputButton[label_String, opts___] _EventObject

creates a button component and returns EventObject

Event generation

On-click emits True to a handler function assigned

Options

`"Class"`

A text string of CSS classes used for customizing a button

`"Style"`

A text string with CSS styles applied to an element

`"Topic"`

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

Application

A basic GUI element

button = InputButton["Click me!"];
EventHandler[button, Print]

or click to make sound

EventHandler[InputButton[], Beep]

Chaining events

One can reuse another event when creating a button

InputButton[event_EventObject, label_String, opts___]

for example

ev = EventObject[];

InputButton[ev, "Topic"->"Button"]
InputRange[ev, 0,1,0.1, "Topic"->"Slider"]

EventHandler[ev, {
	"Button" -> Beep,
	"Slider" -> Print
}];

Possible issues

Grouping two buttons using InputGroup

group = InputGroup[{
	InputButton[],
	InputButton[]
}] 

EventHandler[group, Print];

You will always see {True, True}. This is because buttons are stateless, and InputGroup records the last state of each. There are different ways to differentiate between them

Option 1A

By patterns

group = InputGroup[{
	InputButton["Topic"->"A"],
	InputButton["Topic"->"B"]
}] 

EventHandler[group, {
	topic_ :> Function[Null, Print[topic]]
}];

Option 1B

Using custom wrapper and separate by patterns

ev = EventObject[];

{
	InputButton[ev, "Topic"->"A"],
	InputButton[ev, "Topic"->"B"]
}// Column // Panel

EventHandler[ev, {
	any_ :> Function[Null, Print[any]]
}];

Option 2

Connect separately

{
	b1 = InputButton[],
	b2 = InputButton[]
}// Column // Panel

EventHandler[b1, (Print["A"])&];
EventHandler[b2, (Print["B"])&];