XChangeDeviceDontPropagateList, XGetDeviceDontPropagateList - query or change the dont-propagate-list for extension devices
SYNTAX
int XChangeDeviceDontPropagateList(Display *display, Window
*window, int *count, XEventClass *event_list, int
mode);
XEventClass *XGetDeviceDontPropagateList(Display *display, Window
*window, int *count);
ARGUMENTS
display
Specifies the connection to the X server.
window
Specifies the window whose dont-propagate-list is to be queried or modified.
event_list
Specifies a pointer to a list of event classes.
mode
Specifies the mode.
You can pass
AddToList ,
or
DeleteFromList.
count
Specifies the number of event classes in the list.
DESCRIPTION
The XChangeDeviceDontPropagateList request modifies the list
of events that should not be propagated to ancestors of the event window.
This request allows extension events to be added to or deleted from
that list. By default, all events are propagated to ancestor windows.
Once modified, the list remains modified for the life of the window.
Events are not removed from the list because the client that added them
has terminated.
Suppression of event propagation is not allowed for all input extension
events. If a specified event class is one that cannot be suppressed,
a BadClass error will result. Events that can be suppressed
include DeviceKeyPress, DeviceKeyRelease, DeviceButtonPress,
DeviceButtonRelease, DeviceMotionNotify, ProximityIn,
and ProximityOut.
XChangeDeviceDontPropagateList
can generate a BadDevice, BadClass, or BadValue error.
The XGetDeviceDontPropagateList request queries the list
of events that should not be propagated to ancestors of the event window.
XGetDeviceDontPropagateList
can generate a BadClass or BadWindow error.
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 some other client has caused the specified device to become
the X keyboard or X pointer device via the XChangeKeyboardDevice or
XChangePointerDevice requests.
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.
