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Functions
int | gdk_device_pad_get_n_groups () |
int | gdk_device_pad_get_group_n_modes () |
int | gdk_device_pad_get_n_features () |
int | gdk_device_pad_get_feature_group () |
Description
GdkDevicePad is an interface implemented by devices of type
GDK_SOURCE_TABLET_PAD
, it allows querying the features provided
by the pad device.
Tablet pads may contain one or more groups, each containing a subset
of the buttons/rings/strips available. gdk_device_pad_get_n_groups()
can be used to obtain the number of groups, gdk_device_pad_get_n_features()
and gdk_device_pad_get_feature_group()
can be combined to find out the
number of buttons/rings/strips the device has, and how are they grouped.
Each of those groups have different modes, which may be used to map each
individual pad feature to multiple actions. Only one mode is effective
(current) for each given group, different groups may have different
current modes. The number of available modes in a group can be found
out through gdk_device_pad_get_group_n_modes()
, and the current mode for
a given group will be notified through events of type GDK_PAD_GROUP_MODE.
Functions
gdk_device_pad_get_n_groups ()
int
gdk_device_pad_get_n_groups (GdkDevicePad *pad
);
Returns the number of groups this pad device has. Pads have at least one group. A pad group is a subcollection of buttons/strip/rings that is affected collectively by a same current mode.
gdk_device_pad_get_group_n_modes ()
int gdk_device_pad_get_group_n_modes (GdkDevicePad *pad
,int group_idx
);
Returns the number of modes that group
may have.
gdk_device_pad_get_n_features ()
int gdk_device_pad_get_n_features (GdkDevicePad *pad
,GdkDevicePadFeature feature
);
Returns the number of features a tablet pad has.
gdk_device_pad_get_feature_group ()
int gdk_device_pad_get_feature_group (GdkDevicePad *pad
,GdkDevicePadFeature feature
,int feature_idx
);
Returns the group the given feature
and idx
belong to,
or -1 if feature/index do not exist in pad
.