XSetDeviceMode - change the mode of a device
XSetDeviceMode(display, device, mode)
Specifies the connection to the X server.
Specifies the device whose mode is to be changed.
Specifies the mode. You can pass
The XSetDeviceMode request changes the mode of an input device that is capable of reporting either absolute positional information or relative motion information. Not all input devices are capable of reporting motion data, and not all are capable of changing modes from Absolute to Relative.
can generate a
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 some other client has caused the
specified device to become the X keyboard or X pointer device via the
This error may occur if an
request is made specifying a device that has no valuators and reports no axes
An invalid mode was specified. This error will also be returned
if the specified device is not capable of supporting the
Programming with Xlib