guest_button_register()

Updated: October 28, 2024

Register a callback when the specified button event is generated

Synopsis:

#include <qvm/guest.h>
void guest_button_register(vdev_t *vdp,
                           unsigned buttons)

Arguments:

vdp
A pointer to an associated vdev.
buttons
A bit set of guest_button_type values.

Description:

When the event is generated, the vdev control function will be called with the VDEV_CTRL_BUTTON command (see Definitions in vdev-core.h).