[Lazarus] Cut, Copy, Paste shortcuts don't work in SynEdit

[Graeme Geldenhuys]

I'm using the TypeMatrix 2030 USB keyboard (Dvorak layout). The
TypeMatrix keyboard has special clipboard shortcuts via Fn functionality
for Cut, Copy and Paste.

I'm using FreeBSD running JWM (a plain window manager). The issue is
observed under Linux (Centos 6) too. All X11 applications work fine with
the Fn clipboard functions - that's all except Lazarus IDE and I can't
figure out why.

When I press the special Fn clipboard keys, it actually generates the
IBM style Cut, Copy and Paste via Shift+Del, Ctrl+Ins and Shift+Ins
respectively. The "xev" output shows that - below it generate the key
sequence for Cut.

Because I use the Dvorak layout, I've always used the IBM style Cut,
Copy and Paste because it is easier to type. I've also set up Lazarus
IDE with secondary shortcuts for those. When I physically press
Shift+Del it works, but the Fn+Cut key doesn't. Yet they generate the
exact same key sequences in xev.

Anybody got any idea why Lazarus IDE (more specifically SynEdit) doesn't
work correctly?

  NOTE:
    Any dialogs in Lazarus IDE that accepts text, the Fn clipboard
    functionality works (eg: a TEdit). So LCL is not the problem.
    It seems on SynEdit is the issue.


If I press Fn+Cut on my TypeMatrix 2030, this is what xev outputs:

================[ xev output ]====================
KeyPress event, serial 36, synthetic NO, window 0x2600001,
    root 0x295, subw 0x0, time 175828944, (1760,391), root:(1939,589),
    state 0x0, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
    XLookupString gives 0 bytes:
    XmbLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyPress event, serial 36, synthetic NO, window 0x2600001,
    root 0x295, subw 0x0, time 175828944, (1760,391), root:(1939,589),
    state 0x1, keycode 107 (keysym 0xffff, Delete), same_screen YES,
    XLookupString gives 1 bytes: (7f) ""
    XmbLookupString gives 1 bytes: (7f) ""
    XFilterEvent returns: False

KeyRelease event, serial 36, synthetic NO, window 0x2600001,
    root 0x295, subw 0x0, time 175829000, (1760,391), root:(1939,589),
    state 0x1, keycode 50 (keysym 0xffe1, Shift_L), same_screen YES,
    XLookupString gives 0 bytes:
    XFilterEvent returns: False

KeyRelease event, serial 36, synthetic NO, window 0x2600001,
    root 0x295, subw 0x0, time 175829000, (1760,391), root:(1939,589),
    state 0x0, keycode 107 (keysym 0xffff, Delete), same_screen YES,
    XLookupString gives 1 bytes: (7f) ""
    XFilterEvent returns: False
===========================================


I haven't tested under Windows yet.

Regards,
  Graeme

-- 
fpGUI Toolkit - a cross-platform GUI toolkit using Free Pascal
http://fpgui.sourceforge.net/

My public PGP key:  http://tinyurl.com/graeme-pgp
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