On 01/04/14 06:50, Tharindu Amila Perera wrote:
> Hi all,
>
> Using the reply I found out that the events coming from the keyboard
> has this behavior.
>
> Using the argument KeyEvent coming to function in file tabvwsh4.cxx
> bool ScTabViewShell::TabKeyInput(const KeyEvent& rKEvt)
>
>
> I can get codes of all keys except of Caps-Lock, NumLock and
> Scroll(Which is the needed input).
> I noticed that when any of the above keys are pressed this function is
> called twice. But in both events the keycodes are not accessible.
hmm... indeed the keycode is 0 there... it looks like the "lock" keys
are not mapped to a keycode in VCL... perhaps intentionally.
> When CapsLock is on pressing key 'A' in keyboard will give the same
> keycode as when it is not on. So there must be a place where it is
> handled to differentiate a and A inputs. It would be appreciated if I
> can get a code pointer for this.
if i read the bug correctly you don't actually need the key events, you
just need to know if the lock key is active when some other input happens.
vcl/unx/generic/app/saldisp.cxx:
sal_uInt16 SalDisplay::GetIndicatorState() const
{
unsigned int _state = 0;
sal_uInt16 nState = 0;
XkbGetIndicatorState(pDisp_, XkbUseCoreKbd, &_state);
if ((_state & 0x00000001))
nState |= INDICATOR_CAPSLOCK;
if ((_state & 0x00000002))
nState |= INDICATOR_NUMLOCK;
if ((_state & 0x00000004))
nState |= INDICATOR_SCROLLLOCK;
return nState;
}
there is an example for requesting the caps-lock key state in
editeng/source/misc/svxacorr.cxx:
bool bLockKeyOn = pFrameWin && (pFrameWin->GetIndicatorState() &
INDICATOR_CAPSLOCK);
so you need a VCL Window to get the state; a SfxViewShell like the
ScTabVierwShell has a pointer to its Window.
(since i read the bug too late i've already got a patch to assign a
keycode for the scroll-lock key (see attachment), but i now think that
is actually useless)
diff --git a/vcl/unx/generic/app/saldisp.cxx b/vcl/unx/generic/app/saldisp.cxx
index d96fd20..4960931 100644
--- a/vcl/unx/generic/app/saldisp.cxx
+++ b/vcl/unx/generic/app/saldisp.cxx
@@ -1251,6 +1251,9 @@ sal_uInt16 SalDisplay::GetKeyCode( KeySym keysym, char*pcPrintable ) const
nKey = KEY_SEMICOLON;
*pcPrintable = ';';
break;
+ case XK_Scroll_Lock:
+ nKey = KEY_SCROLLLOCK;
+ break;
// - - - - - - - - - - - - - Apollo - - - - - - - - - - - - - 0x1000
case 0x1000FF02: // apXK_Copy
nKey = KEY_COPY;
diff --git a/vcl/unx/gtk/window/gtksalframe.cxx b/vcl/unx/gtk/window/gtksalframe.cxx
index f22b54e..baa94f2 100644
--- a/vcl/unx/gtk/window/gtksalframe.cxx
+++ b/vcl/unx/gtk/window/gtksalframe.cxx
@@ -255,6 +255,7 @@ static sal_uInt16 GetKeyCode( guint keyval )
case GDK_bracketleft: nCode = KEY_BRACKETLEFT; break;
case GDK_bracketright: nCode = KEY_BRACKETRIGHT; break;
case GDK_semicolon: nCode = KEY_SEMICOLON; break;
+ case GDK_Scroll_Lock: nCode = KEY_SCROLLLOCK; break;
// some special cases, also see saldisp.cxx
// - - - - - - - - - - - - - Apollo - - - - - - - - - - - - - 0x1000
case 0x1000FF02: // apXK_Copy
diff --git a/vcl/win/source/window/salframe.cxx b/vcl/win/source/window/salframe.cxx
index 90b36e0..227b6ae 100644
--- a/vcl/win/source/window/salframe.cxx
+++ b/vcl/win/source/window/salframe.cxx
@@ -666,7 +666,7 @@ static const sal_uInt16 aImplTranslateKeyTab[KEY_TAB_SIZE] =
0, // 142
0, // 143
0, // NUMLOCK 144
- 0 // SCROLLLOCK 145
+ KEY_SCROLLLOCK // SCROLLLOCK 145
};
static UINT ImplSalGetWheelScrollLines()
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