Re: [AD] Some thoughts about multi-window applications

[Peter Wang <novalazy@xxxxxxxxxx>]

On 2009-08-12, Evert Glebbeek <eglebbk@xxxxxxxxxx> wrote:
> Over the past few weeks I've been playing a bit with multiple windows  
> in Allegro 5. For the most part, everything works great, but there are  
> a few annoyances that I ran across:
> 
> 1. When getting mouse (or keyboard) input the event struct does not  
> contain a pointer to the active window (or if it does, that is not  
> documented or clear from the examples). Not a problem, since you can  
> keep track of switch in/out events yourself, but it is annoying and it  
> would be convenient to have.

It's there and demonstrated by ex_mouse_focus and ex_keyboard_focus.
I'll document it in a bit.

> 2. Related question: I'm working under the assumption that the last  
> created window has input focus. Is this true on all platforms (it  
> would make sense)?

I think this is up to your window manager.

> 3. Not unimportant: I place the windows such that they don't overlap.  
> To do this, I derive from the position of the first window and move  
> the new window position by the window size and a little extra to  
> account for window decorations. However, it is guananteed that the  
> space taken up by decorations will be different across different  
> platforms. Should we add a function that will return the window  
> dimensions on the desktop for this reason? Does this functionality  
> exist on all platforms?

I don't know.

> 4. al_toggle_window_frame does nothing on OS X. I'll have to check,  
> but you may not be able to change this after the window was created.  
> If that is so, maybe this function should return true or false,  
> depending on whether the call was succesful or not (not that it would  
> matter too much - what are you going to do if it fails, after all?)

Yes.

Peter