XSetDeviceButtonMappXnVersion 11 (ReXSetDeviceButtonMapping(3X11)
NAME
XSetDeviceButtonMapping, XGetDeviceButtonMapping - query or
change device button mappings
SYNTAX
int XSetDeviceButtonMapping(display, device, map, nmap)
Display *display;
XDevice *device;
unsigned char map[];
int nmap;
int XGetDeviceButtonMapping(display, device, map_return,
nmap)
Display *display;
XDevice *device;
unsigned char map_return[];
int nmap;
ARGUMENTS
display Specifies the connection to the X server.
device Specifies the device whose button mapping is to
be queried or changed.
map Specifies the mapping list.
map_return Returns the mapping list.
nmap Specifies the number of items in the mapping
list.
DESCRIPTION
The XSetDeviceButtonMapping request sets the mapping of the
specified device. If it succeeds, the X server generates a
DeviceMappingNotify event, and XSetDeviceButtonMapping
returns MappingSuccess. Element map[i] defines the logical
button number for the physical button i+1. The length of
the list must be the same as XGetDeviceButtonMapping would
return, or a BadValue error results. A zero element
disables a button, and elements are not restricted in value
by the number of physical buttons. However, no two elements
can have the same nonzero value, or a BadValue error
results. If any of the buttons to be altered are logically
in the down state, XSetDeviceButtonMapping returns
MappingBusy, and the mapping is not changed.
XSetDeviceButtonMapping can generate BadDevice, BadMatch,
and BadValue errors.
The XGetDeviceButtonMapping request returns the current
mapping of the specified device. Buttons are numbered
starting from one. XGetDeviceButtonMapping returns the
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XSetDeviceButtonMappXnVersion 11 (ReXSetDeviceButtonMapping(3X11)
number of physical buttons actually on the device. The
nominal mapping for a device is map[i]=i+1. The nmap
argument specifies the length of the array where the device
mapping is returned, and only the first nmap elements are
returned in map_return.
XGetDeviceButtonMapping can generate BadDevice or BadMatch
errors.
DIAGNOSTICS
BadDevice An invalid device was specified. The specified
device does not exist or has not been opened by
this client via XOpenInputDevice. This error
may also occur if the specified device is the X
keyboard or X pointer device.
BadMatch This error may occur if an
XGetDeviceButtonMapping or
XSetDeviceButtonMapping request was made
specifying a device that has no buttons.
BadValue Some numeric value falls outside the range of
values accepted by the request. Unless a
specific range is specified for an argument, the
full range defined by the argument's type is
accepted. Any argument defined as a set of
alternatives can generate this error.
SEE ALSO
XChangeDeviceKeyboardControl(3X),
XChangeDeviceKeyMapping(3X)XChangeDeviceModifierMapping(3X)
Programming With Xlib
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