How to show a form with keyboard shortcut

[HARADA Kazutaka-2]

Hi all,

I'm developing a small app that always stays on the notification
area (with trayicon).

In this app, I'm trying to show a form with keyboard shortcut,
like steps below.

1) Run application. (But don't show a form, Minimized in
   notification area)
2) Press keyboard shortcut (like Control+Space)
3) Then popup a form

But I could't find a way to do it yet.

Is it possible to show a form with keyboard shortcut eyen though
there is no visible form?

I'm using gambas2-2.14.0.

Regards,

---
Kazutaka HARADA

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[Benoît Minisini]

> Hi all,
>
> I'm developing a small app that always stays on the notification
> area (with trayicon).
>
> In this app, I'm trying to show a form with keyboard shortcut,
> like steps below.
>
> 1) Run application. (But don't show a form, Minimized in
>    notification area)
> 2) Press keyboard shortcut (like Control+Space)
> 3) Then popup a form
>
> But I could't find a way to do it yet.
>
> Is it possible to show a form with keyboard shortcut eyen though
> there is no visible form?
>
> I'm using gambas2-2.14.0.
>
> Regards,
>
> ---
> Kazutaka HARADA
>
> --------------------------------------
> Power up the Internet with Yahoo! Toolbar.
> http://pr.mail.yahoo.co.jp/toolbar/
>

You can't if you don't have the focus. What you need is a global shortcut,
which is managed by your desktop environment, or a special program.

For example, in KDE, there is a control panel entry for configuring them.

Regards,

--
Benoît

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[HARADA Kazutaka-2]

Sorry fo late reply,

> You can't if you don't have the focus. What you need is a global shortcut,
> which is managed by your desktop environment, or a special program.
>
> For example, in KDE, there is a control panel entry for configuring them.
>  

Yes, you are right.
But I'm looking for a window manager (or desktop environment)
independent way.

So I start to write a test program using Xlib with EXTERN declaration
like this.

' Gambas module file
EXTERN XOpenDisplay(DpyName AS String) AS Pointer IN "libX11"
EXTERN XDefaultScreen(Display AS Pointer) AS Integer IN "libX11"
EXTERN XDefaultRootWindow(Display AS Pointer) AS Integer IN "libX11"
EXTERN XSelectInput(Display AS Pointer, Window AS Integer, KeyMask AS
Long) IN "libX11"
EXTERN XNextEvent(Display AS Pointer, XEvent AS Pointer) IN "libX11"
EXTERN XGrabKey(Display AS Pointer, KeyCode AS Integer, Modifiers AS
Integer, Window AS Pointer, OwnEvent AS Boolean, PointerMode AS Integer,
KeyboardMode AS Integer) IN "libX11"

PUBLIC SUB Main()

    DIM pDisplay AS Pointer
    DIM pRootWindow AS Pointer
    DIM pEvent AS Pointer

    pDisplay = XOpenDisplay("")
    pRootWindow = XDefaultRootWindow(pDisplay)
    XSelectInput(pDisplay, pRootWindow, 1)              '1 = KeyPressMask
    XGrabKey(pDisplay, 95, 0, pRootWindow, FALSE, 1, 1) '95 = F11 key,
1=GrabModeAsync
    DO
        XNextEvent(pDisplay, pEvent)
        PRINT ("Key F11 Pressed")
    LOOP
END

When F11 Key, keycode is 95 on my japanese keyboard, is pressed,
It should print the message. But actually program exit with signal 11.

Any comments or suggestions are wlecome.

Regards,

--
--------------------------------------
Kazutaka HARADA
  e-mail:kazutaka802@...
--------------------------------------


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[Doriano Blengino]

HARADA Kazutaka ha scritto:

> Sorry fo late reply,
>
>  
>> You can't if you don't have the focus. What you need is a global shortcut,
>> which is managed by your desktop environment, or a special program.
>>
>> For example, in KDE, there is a control panel entry for configuring them.
>>  
>>    
>
> Yes, you are right.
> But I'm looking for a window manager (or desktop environment)
> independent way.
>
> So I start to write a test program using Xlib with EXTERN declaration
> like this.
>
> ' Gambas module file
> EXTERN XOpenDisplay(DpyName AS String) AS Pointer IN "libX11"
> EXTERN XDefaultScreen(Display AS Pointer) AS Integer IN "libX11"
> EXTERN XDefaultRootWindow(Display AS Pointer) AS Integer IN "libX11"
> EXTERN XSelectInput(Display AS Pointer, Window AS Integer, KeyMask AS
> Long) IN "libX11"
> EXTERN XNextEvent(Display AS Pointer, XEvent AS Pointer) IN "libX11"
> EXTERN XGrabKey(Display AS Pointer, KeyCode AS Integer, Modifiers AS
> Integer, Window AS Pointer, OwnEvent AS Boolean, PointerMode AS Integer,
> KeyboardMode AS Integer) IN "libX11"
>
> PUBLIC SUB Main()
>
>     DIM pDisplay AS Pointer
>     DIM pRootWindow AS Pointer
>     DIM pEvent AS Pointer
>
>     pDisplay = XOpenDisplay("")
>     pRootWindow = XDefaultRootWindow(pDisplay)
>     XSelectInput(pDisplay, pRootWindow, 1)              '1 = KeyPressMask
>     XGrabKey(pDisplay, 95, 0, pRootWindow, FALSE, 1, 1) '95 = F11 key,
> 1=GrabModeAsync
>     DO
>         XNextEvent(pDisplay, pEvent)
>         PRINT ("Key F11 Pressed")
>     LOOP
> END
>
> When F11 Key, keycode is 95 on my japanese keyboard, is pressed,
> It should print the message. But actually program exit with signal 11.
>
> Any comments or suggestions are wlecome.
>  

Hi,

I think that in the call to XNextEvent you are passing a NIL pointer;
libX11 tries to put data in the area pointed by pEvent. You should
allocate some memory in it, enough to hold the event data. If, on the
other hand (I don't have the docs at hands right now), X11 should
allocate the event, and return to you the pointer to the event, then
again you should pass to X11 a pointer to a pointer... but you pass it a
NULL.

Anyway, my compliments for the low-level management. This is not seen
every day :-)

Regards,
Doriano


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[HARADA Kazutaka-2]

Doriano Blengino wrote:
> I think that in the call to XNextEvent you are passing a NIL pointer;
> libX11 tries to put data in the area pointed by pEvent. You should
> allocate some memory in it, enough to hold the event data. If, on the
>  

Hi, Doriano
Thanks for your comment.

As you suggested above, I added following line to allocate the memrory,
then program runs normally. No signall 11 error.

    pEvent = Alloc(15)      ' 15 is temporary size

Now I can go to the next step!

Regards,

--
--------------------------------------
Kazutaka HARADA
  e-mail:kazutaka802@...
--------------------------------------


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