offer right-ctrl as a grab option

Add support for -ctrl-grab to use the right-ctrl button to grab/release
the mouse in SDL.

The multi-button ctrl-alt and ctrl-alt-shift grab buttons present an
accessibility problem to users who cannot press more than one button
at a time.

https://bugs.edge.launchpad.net/ubuntu/+source/qemu-kvm/+bug/237635

Signed-off-by: Dustin Kirkland <kirkland@canonical.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/sysemu.h b/sysemu.h
index 9131e62cdd..763861ded5 100644
--- a/sysemu.h
+++ b/sysemu.h
@@ -126,6 +126,7 @@ extern const char *keyboard_layout;
 extern int win2k_install_hack;
 extern int rtc_td_hack;
 extern int alt_grab;
+extern int ctrl_grab;
 extern int usb_enabled;
 extern int smp_cpus;
 extern int max_cpus;