> I have successfully embedded InternetExplorer canvas (from
> mshtml.dll) as a subwindow of fltk window - under MingW.
> I had one problem thought, acceleration keys - such as
> PgDown, PgUp, Copy/Paste/Cut (CTRL+C, CTRL+V, Ctrl+X), even
> Delete key -
> did not work without modification of fltk library. The reason
> for that is that fltk gives no chance to call calls
> TranslateAccelerator functions - which have to
> be processed before messages are translated and dispatched to
> WinProc(s).
>
> The modification adds possibility to call these accelerators
> before TranslateMessage() and DispatchMessage() within
> fl_wait() (approx. line 338 in Fl_win32.cxx) and if
> successful, such message is not furthet processed:
>
>
> static int (*translate_accelerator_)(MSG * msg) = 0;
>
> // this platform-specific declaration would be in Fl_win32.H
> void fl_translate_accelerator(int (*accelerator)(MSG * msg)){
> translate_accelerator_ = accelerator;
> }
>
>
> fl_wait(...){
> ...
> if(!translate_accelerator_ || !(*translate_accelerator_)(&fl_msg)){
> TranslateMessage(&fl_msg);
> DispatchMessage(&fl_msg);
> }
> }
>
> Implementation of the translator is completely up to the
> user, normally this pointer is NULL.
> The function could be even declared without argument as user
> can always dig it out from fl_msg which is set at that moment.
>
> Maybe some users are interested to embed stock "windows
> controls" - so maybe something similar can be added to next
> fltk version (1.3)?
This is an interesting idea - though I don't think I'd use it right now - but
it triggered a bit of a déjà vu for me... Did we not have a discussion a while
back about extending the shortcut / accelerator mechanism to allow the user to
add their own handlers?
This would be in the same ballpark - though I think the proposed scheme was
substantially different.
And this is all from memory so I'm probably just making it up!
--
Ian
SELEX Galileo Ltd
Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex SS14
3EL
A company registered in England & Wales. Company no. 02426132
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