XCHANGEDEVICEDONTPRO - Online Linux Manual PageSection : 3
Updated : 09/15/2021
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NAMEXChangeDeviceDontPropagateList, XGetDeviceDontPropagateList − query or change the dont−propagate−list for extension devices

SYNOPSIS#include <X11/extensions/XInput​.h>int XChangeDeviceDontPropagateList( Display *display, Window window, int count, XEventClass *event_list, int mode);XEventClass* XGetDeviceDontPropagateList( Display *display, Window window, int *count);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​.

DESCRIPTIONThe 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​.

DIAGNOSTICSBadDevice 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​.BadWindow An invalid window id was specified​.BadClass An invalid event class was specified​.
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