Obtains the index of a pressed or released button passed as an event structure by a PV‑WAVE Widgets event handler.

event — The event handle received by the event handler.

button — The index of the button that was pressed or released. If the function call fails, the value –1L is returned.

State — Returns a string array containing the state of all the buttons just before the event.

The following are examples of strings found in the State array: 'Button1', 'Button2', ..., 'ButtonN' (indicating which button was pressed); and 'Shift', 'Control', 'Lock', 'Mod1', ..., (button modifiers).

For an example using WwGetButton, see the example for the WwGetPosition Function.

WwGetKey, WwGetPosition