XSetDeviceButtonMapping, XGetDeviceButtonMapping - query or change device button mappings
XSetDeviceButtonMapping(display, device, map, nmap)
unsigned char map;
XGetDeviceButtonMapping(display, device, map_return, nmap)
unsigned char map_return;
Specifies the connection to the X server.
Specifies the device whose button mapping is to be queried
Specifies the mapping list.
Returns the mapping list.
Specifies the number of items in the mapping list.
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 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.
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.
This error may occur if an
request was made
specifying a device that has no buttons.
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.
XChangeKeyboardControl(3X11), XChangeDeviceKeyMapping(3X11), XSetDeviceModifierMapping(3X11)
Programming With Xlib