author Sam Lantinga <>
Sat, 27 Jul 2013 03:20:09 -0700
changeset 7526 6c0f0280149c
parent 7222 2435b221d77d
child 9361 17a2821b451c
permissions -rw-r--r--
Fixed bug 1272 - Bogus numlock key up/down events being reported on MacOS X Vern Jensen The problem is that in certain situations I'm getting THREE keyUp/keyDown events when I push certain keys. In my event code I added: case SDL_KEYUP: printf("SDL KeyScanCode for KEYUP event: %d\n", event->key.keysym.scancode ); … and case SDL_KEYDOWN: printf("SDL KeyScanCode for KEYDOWN event: %d\n", event->key.keysym.scancode ); … The result of one test run where I push 2 keys and then release them is this: SDL KeyScanCode for KEYDOWN event: 92 // Pushed keypad 4 SDL KeyScanCode for KEYDOWN event: 83 // Pushed left shift SDL KeyScanCode for KEYUP event: 83 SDL KeyScanCode for KEYDOWN event: 225 SDL KeyScanCode for KEYUP event: 92 // Released keypad 4 SDL KeyScanCode for KEYDOWN event: 83 SDL KeyScanCode for KEYUP event: 83 SDL KeyScanCode for KEYUP event: 225 // Released left shift There *should* be only a total of 4 events above… 2 for each key being pushed, and 2 for each being released. But instead some bogus events for numlock being pushed/released are sent from SDL. These events did not occur. I did not push numlock. The value above for numlock is 83. Comments above show when I pushed each key. As you can see, when I push left shift, THREE events are instantly sent to my application, keyDown and then keyUp for numlock, and then the valid event for left shift (the key that was actually pushed). You could replace keypad 4 with pretty much any keyPad key and it'll still happen. You can also replace it with any arrow key and it'll happen. However, when trying it with normal letter keys on the main keyboard it didn't. It happens with other modifier keys too, not just left shift. The order in which the keys are pressed matter. For instance, if I do: 1) keypad 4 2) left shift 3) release left shift 4) release keypad 4 Then at step 2, I get the 3 events above (when there should be only one), but steps 3 and 4 work properly… I don't get extra keyUp/keyDown events for steps 3 or 4. Thereas if the order of steps 3 and 4 are reversed, I get the bogus extra events for numlock. Also, the problem can occur even when pushing just a single key by itself. If I push left shift, then keypad 4, then release left shift, then release keypad 4, then the following push of left shift will cause the bug. If I continue pushing and releasing left shift though, it won't happen again until I again involve keypad keys. --- Sam Lantinga According to the Apple documentation, NSNumericPadKeyMask is set for any arrow or numeric keypad event. Indeed this is what's happening. I verified that we get the correct events for the numlock key and the mod state gets set correcly, so it should be safe to remove this bogus code.

Summary: Simple DirectMedia Layer
Name: SDL2
Version: @SDL_VERSION@
Release: 1
License: zlib
Group: System Environment/Libraries
BuildRoot: %{_tmppath}/%{name}-%{version}-buildroot
Prefix: %{_prefix}
%ifos linux

%define __defattr %defattr(-,root,root)
%define __soext so

This is the Simple DirectMedia Layer, a generic API that provides low
level access to audio, keyboard, mouse, and display framebuffer across
multiple platforms.

%package devel
Summary: Libraries, includes and more to develop SDL applications.
Group: Development/Libraries
Requires: %{name} = %{version}

%description devel
This is the Simple DirectMedia Layer, a generic API that provides low
level access to audio, keyboard, mouse, and display framebuffer across
multiple platforms.

This is the libraries, include files and other resources you can use
to develop SDL applications.

%setup -q 

%ifos linux
CFLAGS="$RPM_OPT_FLAGS" ./configure --prefix=%{prefix} --disable-video-directfb

%ifos linux
make install prefix=$RPM_BUILD_ROOT%{prefix} \
             bindir=$RPM_BUILD_ROOT%{_bindir} \
             libdir=$RPM_BUILD_ROOT%{_libdir} \
             includedir=$RPM_BUILD_ROOT%{_includedir} \
             datadir=$RPM_BUILD_ROOT%{_datadir} \



%files devel

* Sun Jan 22 2012 Sam Lantinga <>
- Updated for SDL 2.0

* Tue May 16 2006 Sam Lantinga <>
- Removed support for Darwin, due to build problems on ps2linux

* Mon Jan 03 2004 Anders Bjorklund <>
- Added support for Darwin, updated spec file

* Wed Jan 19 2000 Sam Lantinga <>
- Re-integrated spec file into SDL distribution
- 'name' and 'version' come from configure 
- Some of the documentation is devel specific
- Removed SMP support from %build - it doesn't work with libtool anyway

* Tue Jan 18 2000 Hakan Tandogan <>
- Hacked Mandrake sdl spec to build 1.1

* Sun Dec 19 1999 John Buswell <>
- Build Release

* Sat Dec 18 1999 John Buswell <>
- Add symlink for required by sdlbomber
- Added docs

* Thu Dec 09 1999 Lenny Cartier <>
- v 1.0.0

* Mon Nov  1 1999 Chmouel Boudjnah <>
- First spec file for Mandrake distribution.

# end of file