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IABSD.fr/xenocara/lib/libXi/man/XGrabDeviceKey.man
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.\" .\" $XFree86: xc/doc/man/Xi/XGrDvKey.man,v 1.2 2001/01/27 18:20:21 dawes Exp $ .\" .\" .\" Copyright ([\d,\s]*) by Hewlett-Packard Company, Ardent Computer, .\" .\" Permission to use, copy, modify, distribute, and sell this documentation .\" for any purpose and without fee is hereby granted, provided that the above .\" copyright notice and this permission notice appear in all copies. .\" Ardent, and Hewlett-Packard make no representations about the .\" suitability for any purpose of the information in this document. It is .\" provided \`\`as is'' without express or implied warranty. .\" .\" $Xorg: XGrDvKey.man,v 1.3 2000/08/17 19:41:56 cpqbld Exp $ .ds xL Programming with Xlib .TH XGrabDeviceKey __LIB_MAN_SUFFIX__ __xorgversion__ "X FUNCTIONS" .SH NAME XGrabDeviceKey, XUngrabDeviceKey \- grab/ungrab extension input device Keys .SH SYNTAX .HP int XGrabDeviceKey\^(\^Display *\fIdisplay\fP\^, XDevice *\fIdevice\fP\^, unsigned int \fIKey\fP\^, unsigned int \fImodifiers\fP\^, XDevice *\fImodifier_device\fP\^, Window \fIgrab_window\fP\^, Bool \fIowner_events\fP\^, unsigned int \fIevent_count\fP\^, XEventClass \fIevent_list\fP\^, int \fIthis_device_mode\fP\^, int \fIother_devices_mode\fP\^); .HP int XUngrabDeviceKey\^(Display *\fIdisplay\fP\^, XDevice *\fIdevice\fP\^, unsigned int \fIKey\fP\^, unsigned int \fImodifiers\fP\^, XDevice *\fImodifier_device\fP\^, Window \fIgrab_window\fP\^); .SH ARGUMENTS .ds Bu grabbed or released .TP 12 .I display Specifies the connection to the X server. .TP 12 .I device Specifies the device that is to be \*(Bu .TP 12 .I Key Specifies the device Key that is to be \*(Bu or \fIAnyKey\fP. .TP 12 .I modifiers Specifies the set of keymasks or \fIAnyModifier\fP. The mask is the bitwise inclusive OR of the valid keymask bits. Valid bits are: ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, Mod5Mask. .TP 12 .I modifier_device Specifies the device whose modifiers are to be used. If a modifier_device of NULL is specified, the X keyboard will be used as the modifier_device. .TP 12 .I grab_window Specifies the grab window. .TP 12 .I owner_events Specifies a Boolean value that indicates whether the device events are to be reported as usual or reported with respect to the grab window if selected by the event list. .TP 12 .I event_count Specifies the number of event classes in the event list. .TP 12 .I event_list Specifies which device events are reported to the client. .TP 12 .I this_device_mode Specifies further processing of events from this device. You can pass \fIGrabModeSync\fP or \fIGrabModeAsync\fP. .TP 12 .I other_devices_mode Specifies further processing of events from other devices. You can pass \fIGrabModeSync\fP or \fIGrabModeAsync\fP. .SH DESCRIPTION The \fIXGrabDeviceKey\fP request establishes a passive grab. In the future, the device is actively grabbed (as for \fIXGrabDevice\fP, the last-device-grab time is set to the time at which the Key was pressed (as transmitted in the \fIDeviceKeyPress\fP event), and the \fIDeviceKeyPress\fP event is reported if all of the following conditions are true: .IP \(bu 5 The device is not grabbed, and the specified key is logically pressed when the specified modifier keys are logically down, and no other keys or modifier keys are logically down. .IP \(bu 5 The grab_window is an ancestor (or is) the focus window OR the grab window is a descendant of the focus window and contains the device. .IP \(bu 5 The confine_to window (if any) is viewable. .IP \(bu 5 A passive grab on the same key/modifier combination does not exist on any ancestor of grab_window. .LP The interpretation of the remaining arguments is as for \fIXGrabDevice\fP . The active grab is terminated automatically when the logical state of the device has the specified key released. .LP Note that the logical state of a device (as seen by means of the X protocol ) may lag the physical state if device event processing is frozen. .LP If the key is not \fIAnyKey\fP, it must be in the range specified by min_keycode and max_keycode as returned by the \fIXListInputDevices\fP request. Otherwise, a \fIBadValue\fP error results. .LP This request overrides all previous grabs by the same client on the same Key/modifier combinations on the same window. A modifier of \fIAnyModifier\fP is equivalent to issuing the grab request for all possible modifier combinations (including the combination of no modifiers). It is not required that all modifiers specified have currently assigned KeyCodes. A key of \fIAnyKey\fP is equivalent to issuing the request for all possible keys. Otherwise, it is not required that the specified key currently be assigned to a physical Key. .LP If a modifier_device of NULL is specified, the X keyboard will be used as the modifier_device. .LP If some other client has already issued a \fIXGrabDeviceKey\fP with the same Key/modifier combination on the same window, a \fIBadAccess\fP error results. When using \fIAnyModifier\fP or \fIAnyKey\fP , the request fails completely, and a \fIBadAccess\fP error results (no grabs are established) if there is a conflicting grab for any combination. \fIXGrabDeviceKey\fP has no effect on an active grab. .LP \fIXGrabDeviceKey\fP can generate \fIBadAccess\fP, \fIBadClass\fP, \fIBadDevice\fP, \fIBadMatch\fP, \fIBadValue\fP, and \fIBadWindow\fP errors. It returns \fISuccess\fP on successful completion of the request. .P The \fIXUngrabDeviceKey\fP request releases the passive grab for a key/modifier combination on the specified window if it was grabbed by this client. A modifier of \fIAnyModifier\fP is equivalent to issuing the ungrab request for all possible modifier combinations, including the combination of no modifiers. A Key of \fIAnyKey\fP is equivalent to issuing the request for all possible Keys. \fIXUngrabDeviceKey\fP has no effect on an active grab. .LP If a modifier_device of NULL is specified, the X keyboard will be used as the modifier_device. .LP \fIXUngrabDeviceKey\fP can generate \fIBadDevice\fP, \fIBadMatch\fP, \fIBadValue\fP and \fIBadWindow\fP errors. .SH DIAGNOSTICS .TP 12 \fIBadDevice\fP An invalid device was specified. The specified device does not exist or has not been opened by this client via \fIXOpenInputDevice\fP. This error may also occur if the specified device is the X keyboard or X pointer device. .TP 12 \fIBadMatch\fP This error may occur if an \fIXGrabDeviceKey\fP request was made specifying a device that has no keys, or a modifier device that has no keys. .TP 12 \fIBadValue\fP 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. .TP 12 \fIBadWindow\fP A value for a Window argument does not name a defined Window. .SH "SEE ALSO" XAllowDeviceEvents(3), .br XGrabDevice(3), .br XGrabDeviceButton(3), .br .br \fI\*(xL\fP