[Gambas-user] New open-source app (mamemenu) with a question

[Benoît Minisini]

Le 15/07/2015 08:57, Kevin Fishburne a écrit :
> I've been working on an arcade cabinet over the last few weeks and it's
> almost done. I started work tonight on the front end because existing
> ones aren't suitable for a real-world cabinet. This is the first
> open-source project I've released and you can find it here (we'll say
> it's GPLv2 for now, maybe BSD later):
>
> http://eightvirtues.com/misc/MAMEMENU/
>
> Here is the first of five parts (with a sixth to follow) showing my
> progress building it:
>
> https://youtu.be/yiy8T7ihZOk
>
> It was a bit tricky because it uses SDL and OpenGL but must still work
> with MAME which also uses those libraries. I grab the first/primary
> joystick using:
>
> Public PadDevice As Process
> PadDevice = Exec ["cat", "/dev/input/js0"] For Read As "Gamepad"
>
> which allows both MAME and the GAMBAS app to accept joystick commands
> simultaneously (keyboard events are hoarded by MAME since SDL handles
> them). These lines:
>
> Public MenuButton1 As Byte = 8        ' Buttons to be held
> simultaneously to quit game and return to main menu.
> Public MenuButton2 As Byte = 9        ' Buttons to be held
> simultaneously to quit game and return to main menu.
>
> assign which gamepad buttons cause MAMEMENU to kill the MAME process and
> return to MAMEMENU. When a gamepad button is pressed its number is
> printed, so when running this on your system/gamepad use that as a
> reference for changing those lines to use whatever two buttons you'd
> like to terminate MAME when held simultaneously. I've included my
> mame.ini file which you can modify to fit your needs, although the
> screen options are tuned to work with MAMEMENU which is designed to run
> full-screen on an arcade cabinet.
>
> MAMEMENU is in its infancy (just started on it tonight), so it's
> functionally rough, but is pretty solid outside of a single issue. When
> I kill the MAME process in GAMBAS it doesn't "shut down gracefully", and
> the OS (Linux Mint 17.1 Cinnamon) thinks the resolution MAME was using
> when killed is the resolution that should be used when MAMEMENU/GAMBAS
> exits, despite me manually telling GAMBAS to use the initial desktop
> resolution upon exiting. The solution I think is to shut down MAME
> "gracefully", but I don't know how to do that.
>
> Is there a way to gracefully kill a process, such as by sending it a
> command to exit instead of using Process.Kill?
>
> Also let me know if you need help getting it up and running. All the
> needed files have been supplied but there's no documentation. Thanks!
>

If your process has a top-level X11 window, even if it is not visible, 
you can close that window from any process. You need just the handle of 
that window.

I added the Window.Handle property to gb.sdl2, it will be committed when 
Sourceforge servers come back.

Meanwhile, you can use Desktop.FindWindow() in 'gb.desktop' to search 
for a window with a specific title and get its handle. Then you call the 
Desktop.Windows.FromHandle(id).Close() method to close it.

Regards,

-- 
Benoît Minisini