InputButton
Wolfram Kernel
Execution environment
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"])&];