Re: [VDKBuilder]Handling keypress events in a form

[Mario M. <mm...@gu...>]

Michael Wagner wrote:
> 
> Hi!
> 
> Sorry for the newbie question, but how can I use VDK to handle a key
> press in a form? I can't seem to follow the documentation as far as this
> is concerned. If someone could point me to the relevant classes or
> (better yet) example code, I'd appreciate it.
> 
> Thanks!
> 
> -Mike
> 


tim lorenz answer cant completely work since you cannot have "this" as
receiver and because static event tables are incomplete. Instead using
extended signal system works as tim said.

Here a code snippet that uses run-time event tables that are the
preferred way:
/*
main form setup
*/
void
PippoForm::Setup(void)
{
  GUISetup();
  // connect "this" (aka the form) to key-press event
  EventConnect("key_press_event",&PippoForm::OnKeyPress);  
}
/*
 more info about key event into:
 gdk/gdktypes.h
 gdk/gdkkeysims.h
*/
bool
PippoForm::OnKeyPress(VDKObject* sender, GdkEvent* e)
{
  GdkEventKey* event = (GdkEventKey*) e;
  printf("\nOnkeyPress:\nkey:%u - state:%d",event->keyval,event->state);
  fflush(stdout);
  return true;
}

-- 
Mario Motta
AI Research Group - Rimini
http://vdkbuilder.sourceforge.net