146 lines
4.6 KiB
Groff
146 lines
4.6 KiB
Groff
.\"
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.\" $XFree86: xc/doc/man/Xi/XChMMap.man,v 1.2 2001/01/27 18:20:21 dawes Exp $
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.\"
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.\"
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.\" Copyright ([\d,\s]*) by Hewlett-Packard Company, Ardent Computer,
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.\"
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.\" Permission to use, copy, modify, distribute, and sell this documentation
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.\" for any purpose and without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\" Ardent, and Hewlett-Packard make no representations about the
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.\" suitability for any purpose of the information in this document. It is
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.\" provided \`\`as is'' without express or implied warranty.
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.\"
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.\" $Xorg: XChMMap.man,v 1.3 2000/08/17 19:41:56 cpqbld Exp $
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.ds xL Programming With Xlib
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.TH XGetDeviceModifierMapping 3X11 __xorgversion__ "X FUNCTIONS"
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.SH NAME
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XGetDeviceModifierMapping, XSetDeviceModifierMapping \- query or change device modifier mappings
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.SH SYNTAX
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\fB
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.HP
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int XSetDeviceModifierMapping(\^Display *\fIdisplay\fP\^, XDevice
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*\fIdevice\fP\^, XModifierKeymap *\fImodmap\fP\^);
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.HP
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XModifierKeymap *XGetDeviceModifierMapping(\^Display *\fIdisplay\fP\^, XDevice
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*\fIdevice\fP\^);
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.fi
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\fP
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.SH ARGUMENTS
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.TP 12
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.I display
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Specifies the connection to the X server.
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.TP 12
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.I device
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Specifies the device whose modifier mapping is to be queried or modified.
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.TP 12
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.I modmap
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Specifies a pointer to the \fIXModifierKeymap\fP structure.
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.SH DESCRIPTION
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The \fIXSetDeviceModifierMapping\fP
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request specifies the KeyCodes of the keys (if any) that are to be used
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as modifiers for the specified device.
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If it succeeds, the X server generates a \fIDeviceMappingNotify\fP
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event, and \fIXSetDeviceModifierMapping\fP returns \fIMappingSuccess\fP.
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X permits at most eight modifier keys.
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If more than eight are specified in the
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\fIXModifierKeymap\fP structure, a \fIBadLength\fP
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error results.
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.LP
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The modifiermap member of the \fIXModifierKeymap\fP
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structure contains eight sets of max_keypermod KeyCodes,
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one for each modifier in the order
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\fIShift\fP,
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\fILock\fP,
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\fIControl\fP,
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\fIMod1\fP,
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\fIMod2\fP,
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\fIMod3\fP,
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\fIMod4\fP,
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and
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\fIMod5\fP.
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Only nonzero KeyCodes have meaning in each set,
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and zero KeyCodes are ignored.
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In addition, all of the nonzero KeyCodes must be in the range specified by
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min_keycode and max_keycode as returned by
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\fIXListInputDevices\fP, or a \fIBadValue\fP
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error results.
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No KeyCode may appear twice in the entire map,
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or a
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\fIBadValue\fP
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error results.
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.LP
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An X server can impose restrictions on how modifiers can be changed,
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for example,
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if certain keys do not generate up transitions in hardware,
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if auto-repeat cannot be disabled on certain keys,
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or if multiple modifier keys are not supported.
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If some such restriction is violated,
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the status reply is
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\fIMappingFailed\fP,
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and none of the modifiers are changed.
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If the new KeyCodes specified for a modifier differ from those
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currently defined and any (current or new) keys for that modifier are
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in the logically down state,
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\fIXSetDeviceModifierMapping\fP
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returns \fIMappingBusy\fP,
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and none of the modifiers is changed.
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.LP
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\fIXSetDeviceModifierMapping\fP
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can generate \fIBadLength\P, \fIBadDevice\fP, \fIBadMatch\fP, \fIBadAlloc\fP,
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and \fIBadValue\fP errors.
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.LP
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The
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\fIXGetDeviceModifierMapping\fP
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request returns a pointer to a newly created
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\fIXModifierKeymap\fP
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structure that contains the keys being used as modifiers.
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The structure should be freed after use by calling
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\fIXFreeModifierMapping \fP.
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If only zero values appear in the set for any modifier,
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that modifier is disabled.
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.LP
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\fIXGetDeviceModifierMapping\fP
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can generate \fIBadDevice\fP and \fIBadMatch\fP errors.
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.SH STRUCTURES
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The \fIXModifierKeymap\fP structure contains:
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.LP
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.nf
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typedef struct {
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int max_keypermod;
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KeyCode *modifiermap;
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} XModifierKeymap;
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.fi
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.LP
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.SH DIAGNOSTICS
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.TP 12
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\fIBadLength\fP
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More than eight keys were specified in the
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\fIXModifierKeymap\fP structure.
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.TP 12
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\fIBadAlloc\fP
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The server failed to allocate the requested resource or server memory.
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.TP 12
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\fIBadDevice\fP
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An invalid device was specified. The specified device does not exist or has
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not been opened by this client via \fIXOpenInputDevice\fP. This error may
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also occur if the specified device is the X keyboard or X pointer device.
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.TP 12
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\fIBadMatch\fP
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This error may occur if an \fIXGetDeviceModifierMapping\fP
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or \fIXChangeDeviceModifierMapping\fP request was made
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specifying
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a device that has no keys.
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.TP 12
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\fIBadValue\fP
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Some numeric value falls outside the range of values accepted by the request.
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Unless a specific range is specified for an argument, the full range defined
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by the argument's type is accepted. Any argument defined as a set of
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alternatives can generate this error.
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.SH "SEE ALSO"
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XSetDeviceKeyMapping(3X11)
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.br
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XSetDeviceButtonMapping(3X11)
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.br
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\fI\*(xL\fP
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