mirror of
https://github.com/yawut/SDL.git
synced 2026-10-23 07:02:40 -05:00
9f6a52c28a
Gerry JJ The state bitmask in SDL_MouseMotionEvent is stored in an Uint8. Unfortunately this doesn't actually have room for 8 buttons because SDL skips 4 button indices after the third mouse button (at least here on Linux x86-64, probably related to wheel handling?), so it's really just enough to track 4 buttons. For example, on a Logitech MX310 mouse I've got, even though the mouse has 6 buttons total, the left and right side buttons and extra middle button have indexes 8, 9 and 10, and the last two won't fit in the 8 bit button state. The source of the button state (in SDL_Mouse) is already 32-bit, and the state field in SDL_MouseMotionEvent is 32-bit aligned and followed by three 8-bit padding fields. So simply changing the SDL_MouseMotionEvent state to an Uint32 and removing the padding fields fixes this, and I think it should be binary compatible, at least for little endian.
Simple DirectMedia Layer
(SDL)
Version 2.0
---
http://www.libsdl.org/
This is the Simple DirectMedia Layer, a general API that provides low
level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL,
and 2D framebuffer across multiple platforms.
The current version supports Windows, Mac OS X, Linux, FreeBSD,
NetBSD, OpenBSD, BSD/OS, Solaris, iOS, and Android. The code contains
support for other operating systems but those are not officially supported.
SDL is written in C, but works with C++ natively, and has bindings to
several other languages, including Ada, C#, Eiffel, Erlang, Euphoria,
Go, Guile, Haskell, Java, Lisp, Lua, ML, Objective C, Pascal, Perl, PHP,
Pike, Pliant, Python, Ruby, and Smalltalk.
This library is distributed under the zlib license, which can be found
in the file "COPYING".
The best way to learn how to use SDL is to check out the header files in
the "include" subdirectory and the programs in the "test" subdirectory.
The header files and test programs are well commented and always up to date.
More documentation and FAQs are available online at:
http://wiki.libsdl.org/
If you need help with the library, or just want to discuss SDL related
issues, you can join the developers mailing list:
http://www.libsdl.org/mailing-list.php
Enjoy!
Sam Lantinga (slouken@libsdl.org)