181 lines
5.6 KiB
Groff
181 lines
5.6 KiB
Groff
|
.\"
|
||
|
|
.\" $XFree86: xc/doc/man/Xi/XChKMap.man,v 1.2 2001/01/27 18:20:20 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: XChKMap.man,v 1.3 2000/08/17 19:41:56 cpqbld Exp $
|
||
|
|
.ds xL Programming with Xlib
|
||
|
|
.TH XGetDeviceKeyMapping 3X11 __xorgversion__ "X FUNCTIONS"
|
||
|
|
.SH NAME
|
||
|
|
XGetDeviceKeyMapping, XChangeDeviceKeyMapping \- query or change device key mappings
|
||
|
|
.SH SYNTAX
|
||
|
|
\fB
|
||
|
|
int XChangeDeviceKeyMapping(\^Display *\fIdisplay\fP\^, XDevice
|
||
|
|
*\fIdevice\fP\^, int \fIfirst_keycode\fP\^, int \fIkeysyms_per_keycode\fP\^,
|
||
|
|
KeySym *\fIkeysyms\fP\^, int \fIkeycode_count\fP\^);
|
||
|
|
.HP
|
||
|
|
KeySym *XGetDeviceKeyMapping(\^Display *\fIdisplay\fP\^, XDevice
|
||
|
|
*\fIdevice\fP\^, KeyCode \fIfirst_keycode\fP\^, int \fIkeycode_count\fP\^, int
|
||
|
|
*\fIkeysyms_per_keycode_return\fP\^);
|
||
|
|
.fi
|
||
|
|
\fP
|
||
|
|
.SH ARGUMENTS
|
||
|
|
.TP 12
|
||
|
|
.I display
|
||
|
|
Specifies the connection to the X server.
|
||
|
|
.TP 12
|
||
|
|
.I device
|
||
|
|
Specifies the device whose key mapping is to be queried or modified.
|
||
|
|
.TP 12
|
||
|
|
.I first_keycode
|
||
|
|
Specifies the first KeyCode to be returned.
|
||
|
|
.TP 12
|
||
|
|
.I keycode_count
|
||
|
|
Specifies the number of KeyCodes to be returned or modified.
|
||
|
|
.TP 12
|
||
|
|
.I keysyms_per_keycode
|
||
|
|
Specifies the number of KeySyms per KeyCode.
|
||
|
|
.TP 12
|
||
|
|
.I keysyms_per_keycode_return
|
||
|
|
Specifies the address of a variable into which the number of KeySyms per KeyCode
|
||
|
|
will be returned.
|
||
|
|
.TP 12
|
||
|
|
.I keysyms
|
||
|
|
Specifies the address of an array of KeySyms.
|
||
|
|
.SH DESCRIPTION
|
||
|
|
For the specified device,
|
||
|
|
the \fIXGetDeviceKeyMapping\fP request returns
|
||
|
|
the symbols for the specified number of KeyCodes
|
||
|
|
starting with first_keycode.
|
||
|
|
The value specified in first_keycode must be greater than
|
||
|
|
or equal to min_keycode as returned by
|
||
|
|
\fIXListInputDevices\fP,
|
||
|
|
or a
|
||
|
|
\fIBadValue\fP
|
||
|
|
error results.
|
||
|
|
In addition, the following expression must be less than or equal
|
||
|
|
to max_keycode as returned by
|
||
|
|
\fIXListInputDevices\fP:
|
||
|
|
.LP
|
||
|
|
.DS
|
||
|
|
first_keycode + keycode_count \- 1
|
||
|
|
.DE
|
||
|
|
.LP
|
||
|
|
If this is not the case, a
|
||
|
|
\fIBadValue\fP
|
||
|
|
error results.
|
||
|
|
The number of elements in the KeySyms list is:
|
||
|
|
.LP
|
||
|
|
.DS
|
||
|
|
keycode_count * keysyms_per_keycode_return
|
||
|
|
.DE
|
||
|
|
.LP
|
||
|
|
KeySym number N, counting from zero, for KeyCode K has the following index
|
||
|
|
in the list, counting from zero:
|
||
|
|
.DS
|
||
|
|
(K \- first_code) * keysyms_per_code_return + N
|
||
|
|
.DE
|
||
|
|
.LP
|
||
|
|
The X server arbitrarily chooses the keysyms_per_keycode_return value
|
||
|
|
to be large enough to report all requested symbols.
|
||
|
|
A special KeySym value of
|
||
|
|
\fINoSymbol\fP
|
||
|
|
is used to fill in unused elements for
|
||
|
|
individual KeyCodes.
|
||
|
|
To free the storage returned by
|
||
|
|
\fIXGetDeviceKeyMapping\fP,
|
||
|
|
use
|
||
|
|
\fIXFree\fP.
|
||
|
|
.LP
|
||
|
|
If the specified device does not support input class keys, a \fIBadMatch\fP
|
||
|
|
error will result.
|
||
|
|
.LP
|
||
|
|
\fIXGetDeviceKeyMapping\fP
|
||
|
|
can generate a \fIBadDevice\fP, \fIBadMatch\fP, or \fIBadValue\fP
|
||
|
|
error.
|
||
|
|
.LP
|
||
|
|
For the specified device, the \fIXChangeDeviceKeyMapping\fP
|
||
|
|
request defines the symbols for the specified number of KeyCodes
|
||
|
|
starting with first_keycode.
|
||
|
|
The symbols for KeyCodes outside this range remain unchanged.
|
||
|
|
The number of elements in keysyms must be:
|
||
|
|
.LP
|
||
|
|
.DS
|
||
|
|
num_codes * keysyms_per_keycode
|
||
|
|
.DE
|
||
|
|
.LP
|
||
|
|
The specified first_keycode must be greater than or equal to min_keycode
|
||
|
|
returned by \fIXListInputDevices\fP, or a \fIBadValue\fP error results.
|
||
|
|
In addition, the following expression must be less than or equal to
|
||
|
|
max_keycode as returned by
|
||
|
|
\fIXListInputDevices\fP, or a \fIBadValue\fP error results:
|
||
|
|
.LP
|
||
|
|
.DS
|
||
|
|
first_keycode + num_codes \- 1
|
||
|
|
.DE
|
||
|
|
.LP
|
||
|
|
KeySym number N, counting from zero, for KeyCode K has the following index
|
||
|
|
in keysyms, counting from zero:
|
||
|
|
.LP
|
||
|
|
.DS
|
||
|
|
(K \- first_keycode) * keysyms_per_keycode + N
|
||
|
|
.DE
|
||
|
|
.LP
|
||
|
|
The specified keysyms_per_keycode can be chosen arbitrarily by the client
|
||
|
|
to be large enough to hold all desired symbols.
|
||
|
|
A special KeySym value of
|
||
|
|
\fINoSymbol\fP
|
||
|
|
should be used to fill in unused elements
|
||
|
|
for individual KeyCodes.
|
||
|
|
It is legal for
|
||
|
|
\fINoSymbol\fP
|
||
|
|
to appear in nontrailing positions
|
||
|
|
of the effective list for a KeyCode.
|
||
|
|
\fIXChangeDeviceKeyMapping\fP generates a \fIDeviceMappingNotify\fP
|
||
|
|
event that is sent to all clients that have selected that type of event.
|
||
|
|
.LP
|
||
|
|
There is no requirement that the X server interpret this mapping.
|
||
|
|
It is merely stored for reading and writing by clients.
|
||
|
|
.LP
|
||
|
|
If the specified device does not support input class keys, a \fIBadMatch\fP
|
||
|
|
error results.
|
||
|
|
.LP
|
||
|
|
\fIXChangeDeviceKeyMapping\fP can generate a \fIBadDevice\fP,
|
||
|
|
\fIBadMatch\fP, \fIBadAlloc\fP, or \fIBadValue\fP error.
|
||
|
|
.LP
|
||
|
|
.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 \fIXGetDeviceKeyMapping\fP or
|
||
|
|
\fIXChangeDeviceKeyMapping\fP request was made
|
||
|
|
specifying
|
||
|
|
a 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
|
||
|
|
\fIBadAlloc\fP
|
||
|
|
The server failed to allocate the requested resource or server memory.
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
XSetDeviceButtonMapping(3X11)
|
||
|
|
.br
|
||
|
|
XSetDeviceModifierMapping(3X11)
|
||
|
|
.br
|
||
|
|
\fI\*(xL\fP
|