IABSD.fr/xenocara/lib/libXi/man/XGetDeviceModifierMapping.man

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• Author : matthieu
  Date : 2007-11-24 16:45:12
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  Message : libXi 1.1.3

• lib/libXi/man/XGetDeviceModifierMapping.man

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  .ds xL Programming With Xlib
  .TH XGetDeviceModifierMapping __LIB_MAN_SUFFIX__ __xorgversion__  "X FUNCTIONS"
  .SH NAME
  XGetDeviceModifierMapping, XSetDeviceModifierMapping \- query or change device modifier mappings
  .SH SYNTAX
  \fB
  .HP
  int XSetDeviceModifierMapping(\^Display *\fIdisplay\fP\^, XDevice
  *\fIdevice\fP\^, XModifierKeymap  *\fImodmap\fP\^); 
  .HP
  XModifierKeymap *XGetDeviceModifierMapping(\^Display *\fIdisplay\fP\^, XDevice
  *\fIdevice\fP\^);
  .fi
  \fP
  .SH ARGUMENTS
  .TP 12
  .I display
  Specifies the connection to the X server.
  .TP 12
  .I device
  Specifies the device whose modifier mapping is to be queried or modified.
  .TP 12
  .I modmap
  Specifies a pointer to the \fIXModifierKeymap\fP structure.
  .SH DESCRIPTION
  The \fIXSetDeviceModifierMapping\fP
  request specifies the KeyCodes of the keys (if any) that are to be used 
  as modifiers for the specified device.
  If it succeeds, the X server generates a \fIDeviceMappingNotify\fP
  event, and \fIXSetDeviceModifierMapping\fP returns \fIMappingSuccess\fP.
  X permits at most eight modifier keys.
  If more than eight are specified in the
  \fIXModifierKeymap\fP structure, a \fIBadLength\fP
  error results.
  .LP
  The modifiermap member of the \fIXModifierKeymap\fP
  structure contains eight sets of max_keypermod KeyCodes, 
  one for each modifier in the order 
  \fIShift\fP,
  \fILock\fP,
  \fIControl\fP,
  \fIMod1\fP,
  \fIMod2\fP,
  \fIMod3\fP,
  \fIMod4\fP,
  and 
  \fIMod5\fP.
  Only nonzero KeyCodes have meaning in each set, 
  and zero KeyCodes are ignored.
  In addition, all of the nonzero KeyCodes must be in the range specified by 
  min_keycode and max_keycode as returned by
  \fIXListInputDevices\fP, or a \fIBadValue\fP
  error results.
  No KeyCode may appear twice in the entire map,
  or a
  \fIBadValue\fP
  error results.
  .LP
  An X server can impose restrictions on how modifiers can be changed, 
  for example,
  if certain keys do not generate up transitions in hardware,
  if auto-repeat cannot be disabled on certain keys,
  or if multiple modifier keys are not supported.  
  If some such restriction is violated, 
  the status reply is
  \fIMappingFailed\fP,
  and none of the modifiers are changed.
  If the new KeyCodes specified for a modifier differ from those
  currently defined and any (current or new) keys for that modifier are
  in the logically down state, 
  \fIXSetDeviceModifierMapping\fP
  returns \fIMappingBusy\fP,
  and none of the modifiers is changed.
  .LP
  \fIXSetDeviceModifierMapping\fP
  can generate \fIBadLength\P, \fIBadDevice\fP, \fIBadMatch\fP, \fIBadAlloc\fP,
  and \fIBadValue\fP errors.
  .LP
  The
  \fIXGetDeviceModifierMapping\fP
  request returns a pointer to a newly created
  \fIXModifierKeymap\fP
  structure that contains the keys being used as modifiers.
  The structure should be freed after use by calling
  \fIXFreeModifierMapping \fP.
  If only zero values appear in the set for any modifier, 
  that modifier is disabled.
  .LP
  \fIXGetDeviceModifierMapping\fP
  can generate \fIBadDevice\fP and \fIBadMatch\fP errors.
  .SH STRUCTURES
  The \fIXModifierKeymap\fP structure contains:
  .LP
  .nf
  typedef struct {
  	int max_keypermod;
  	KeyCode *modifiermap;
  } XModifierKeymap;
  .fi
  .LP
  .SH DIAGNOSTICS
  .TP 12
  \fIBadLength\fP
  More than eight keys were specified in the
  \fIXModifierKeymap\fP structure.
  .TP 12
  \fIBadAlloc\fP
  The server failed to allocate the requested resource or server memory.
  .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 \fIXGetDeviceModifierMapping\fP 
  or \fIXChangeDeviceModifierMapping\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.
  .SH "SEE ALSO"
  XSetDeviceKeyMapping(3) 
  .br
  XSetDeviceButtonMapping(3) 
  .br
  \fI\*(xL\fP