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Ugh... actually changing what buttons are returned to the application.  Maybe we should wait until SDL 1.3 for horizontal scrolling support?

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Added horizontal scrolling support: SDL_BUTTON_WHEELLEFT (6) and SDL_BUTTON_WHEELRIGHT (7)

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Need to resync the keyboard state every time we set a video mode, since
the code in SDL_video.c is clearing the keyboard state.

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The install-lib target should depend on the libraries that are built.

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 previously imported.

   Fixes Bugzilla #433.

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 since they are expected to entirely fill it with data or silence.

For legacy apps that might expect the buffer to already have silence and thus
 may not fill the buffer in the callback, there's an environment variable to
 expose the old behaviour.

  Fixes Bugzilla #416.

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Xlib uses the native locale, not latin1

... the question is... what does the server use? :)

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Solaris doesn't support the LATIN1 character set alias.

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  Fixes Bugzilla #446.

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You can use SetColors() before the video mode has been set.

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Use SetSystemPaletteUse() to get better access to the system palette.

We can still do better palette matching in the case where we aren't
using fullscreen mode or a hardware palette, but that can wait for
another day. :)

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  Fixes Bugzilla #429.

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parameter to iconv()
(See http://lists.debian.org/debian-glibc/2004/05/msg00006.html)

I'm casting in the general case, but I added a non-const codepath in
case it matters on some platform.

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  Partially fixes Bugzilla #418.

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  Fixes Bugzilla #415.

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   Fixes Bugzilla #429.


Selected notes from the patch's README:

= FIXES =

This patch fixes the above issues as follows.

== X11 events ==

Moved XFilterEvent just after XNextEvent so that all events are passed
to it.  Also, XFilterEvent will receive masks indicated by IM through
XNFilterEvents IC value as well as masks surpplied by SDL.

X11_KeyRepeat is called between XNextEvent and XFilterEvent, after
testing an event is a KeyRelease.  I'm not 100% comfortable to do so,
but I couldn't find a better timing to call it, and use of the
function is inevitable.

== Xutf8LookupString ==

Used a longer buffer to receive UTF-8 string.  If it is insufficient,
a dynamic storage of the requested size will be allocated.  The
initial size of the buffer is set to 32, because the Japanese text
converted from the most widely used benchmark key sequence for
Japanese IM, "WATASHINONAMAEHANAKANODESU." has ten Japanese characters
in it, that occupies 30 bytes when encoded in UTF-8.

== SDL_keysym.unicode ==

On Windows version of SDL implementation, SDL_keysym.unicode stores
UTF-16 encoded unicode characters, one UTF-16 encoding unit per an SDL
event.  A Unicode supplementary characters are sent to an application
as two events.  (One with a high surrogate and another with a low
surrogate.)  The behavior seems reasonable since it is upward
compatible with existing handling of BMP characters.

I wrote a UTF-8 to UTF-16 conversion function for the purpose.  It is
designed with the execution speed in mind, having a minimum set of
features that my patch requires.

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 switches.

   Fixes Bugzilla #440.

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