NAME
DMXGetInputAttributes - determine input device attributes
SYNOPSIS
#include <X11/extensions/dmxext.h>
Bool DMXGetInputAttributes(Display *dpy,
int id,
DMXInputAttributes *attr);
DESCRIPTION
DMXGetInputAttributes() returns information about the input device
specified with id. This information cannot be obtained from the
XListInputDeivices(3) call. id is the same as that used by the
XListInputDevices(3) call, and must be in the range 0 to one less than
the value returned by DMXGetInputCount(3), inclusive.
The DMXInputAttributes structure is:
typedef struct {
DMXInputEnum inputType;
int physicalScreen;
int physicalId;
Bool isCore;
Bool sendsCore;
const char *name;
Bool detached;
} DMXInputAttributes;
The value of inputType will always be valid, and will have one of the
following values, depending on the type of input: DMXLocalInputType ,
DMXConsoleInputType , or DMXBackendInputType .
For local devices, all other fields returned, except isCore and
sendsCore , are invalid.
For console devices, physicalScreen and physicalID will be invalid,
and name will return the name of the X server on which the console
window is displayed.
For back-end devices, physicalScreen will identify the back-end display
and can be used as an argument to DMXGetScreenAttributes(3) to obtain
more information; physicalId will be the XInput device id on the back-
end X server; and name will be invalid (since it does not provide any
additional information that cannot be obtained with
DMXGetScreenAttributes(3)).
If isCore is True, then this device is active as a true core input
device and will send core events. If sendsCore is True, then this
device is an XInput extension device, but sends core events instead of
extension events. This behavior is different from that of XFree86 or
Xorg, where XInput extension devices may send both extension events and
core events.
If detached is True, then this device has been detached and is no
longer producing input events. The device may be reattached using
DMXAddInput(3).
RETURN VALUE
DMXGetInputAttributes() returns True unless there is a protocol error.
DMXGetInputAttributes() can generate BadValue (if the value of id is
out of range).
SEE ALSO
DMXGetInputCount(3), XListInputDevices(3), DMXGetScreenAttributes(3),
DMXAddInput(3), DMX(3), Xdmx(1)