FXRuby: Reading keystates

ruby-talk
1

How do I read the pressed state of the shift, ctrl etc keys from within
FXRuby? (And is the correct way to read a Ctrl-A to trap an OnKeypress
for A and check if Ctrl is pressed?)

martin

2

def onKeypress(sender, sel, event)
  p "keysym=#{event.code} state=#{event.state} text=#{event.text}"
  if (event.state & CONTROLMASK) != 0
    if event.text == 'a'
       p "we got a"
    end
  end
end

elsewhere you must do

widget.connect(SEL_KEYPRESS, method(:onKeypress))

(untested)

···

On Fri, 7 Jan 2005 01:26:29 +0900, Martin DeMello <martindemello@yahoo.com> wrote:

How do I read the pressed state of the shift, ctrl etc keys from within
FXRuby? (And is the correct way to read a Ctrl-A to trap an OnKeypress
for A and check if Ctrl is pressed?)

--
Simon Strandgaard

3

I would change one thing, and that is to check the event.code field
instead of the event.text field, i.e.

    if (event.state & CONTROLMASK) != 0
      if event.code == KEY_a
        ...
      end
    end

... also untested :wink:

-- Lyle

···

On Fri, 7 Jan 2005 02:28:20 +0900, Simon Strandgaard <neoneye@gmail.com> wrote:

def onKeypress(sender, sel, event)
  p "keysym=#{event.code} state=#{event.state} text=#{event.text}"
  if (event.state & CONTROLMASK) != 0
    if event.text == 'a'
       p "we got a"
    end
  end
end

4

Thanks to both of you!

martin

···

Lyle Johnson <lyle.johnson@gmail.com> wrote:

On Fri, 7 Jan 2005 02:28:20 +0900, Simon Strandgaard <neoneye@gmail.com> wrote:

> def onKeypress(sender, sel, event)
> p "keysym=#{event.code} state=#{event.state} text=#{event.text}"
> if (event.state & CONTROLMASK) != 0
> if event.text == 'a'
> p "we got a"
> end
> end
> end

I would change one thing, and that is to check the event.code field
instead of the event.text field, i.e.