OpenEuphoria

Re: Windows application hot key - let me explain

• Posted by Andrew Katz <Akatz712 at gmail.com> May 18, 2007
• 576 views

Juergen Luethje wrote:
> 
> Andrew Katz wrote:
> 
> > I have been searching for an application which does the following, but I did
> > not find it, so I will ask here:
> > 
> > The application ALWAYS detects a particular key being pressed (lets say
> > ALT+H)
> > and does something. I have played around with keypress and keydown events,
> > but
> > the behavior of these changes and not all controls know about them.
> 
> You might want to use GetAsyncKeyState(), see
> <<a
> href="http://msdn2.microsoft.com/en-us/library/ms646293.aspx">http://msdn2.microsoft.com/en-us/library/ms646293.aspx</a>>
> 
> Regards,
>    Juergen

Ironically, I found the answer in the IDE which does react to keys. The way to
do it is:

procedure Screen_keydown(integer Self, integer Event, sequence Params)
-- Application hot key detector

if Params[1] = VK_ESCAPE then
-- do something
elsif Params[1] = whatever then
-- yada yada yada
end if

end procedure
setHandler(Screen, w32HKeyDown, routine_id("Screen_keydown"))

The irony is the control 'Screen', since I do not know if the IDE supports that
itself.

Andy Katz
B.S. Computer Science, 1978
Rensselaer Polytechnic Institute (RPI)