452 lines
11 KiB
Plaintext
452 lines
11 KiB
Plaintext
.ds xT X Toolkit Intrinsics \- C Language Interface
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.ds xW Athena X Widgets \- C Language X Toolkit Interface
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.ds xL Xlib \- C Language X Interface
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.ds xC Inter-Client Communication Conventions Manual
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.ny0
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.TH XChangeKeyboardMapping 3X11 "Release 5" "X Version 11" "XLIB FUNCTIONS"
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.SH NAME
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XChangeKeyboardMapping, XGetKeyboardMapping, XDisplayKeycodes, XSetModifierMapping, XGetModifierMapping, XNewModifiermap, XInsertModifiermapEntry, XDeleteModifiermapEntry, XFreeModifierMap XModifierKeymap \- manipulate keyboard encoding and keyboard encoding structure
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.SH SYNTAX
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XChangeKeyboardMapping(\^\fIdisplay\fP, \fIfirst_keycode\fP, \fIkeysyms_per_keycode\fP, \fIkeysyms\fP, \fInum_codes\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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int \fIfirst_keycode\fP\^;
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.br
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int \fIkeysyms_per_keycode\fP\^;
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.br
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KeySym *\fIkeysyms\fP\^;
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.br
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int \fInum_codes\fP\^;
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.LP
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KeySym *XGetKeyboardMapping(\^\fIdisplay\fP, \fIfirst_keycode\fP, \fIkeycode_count\fP,
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.br
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\fIkeysyms_per_keycode_return\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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KeyCode \fIfirst_keycode\fP\^;
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.br
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int \fIkeycode_count\fP\^;
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.br
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int *\fIkeysyms_per_keycode_return\fP\^;
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.LP
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XDisplayKeycodes\^(\^\fIdisplay\fP\^, \fImin_keycodes_return\fP\^, \
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\fImax_keycodes_return\fP\^)
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.br
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Display *\^\fIdisplay\fP\^;
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.br
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int *\^\fImin_keycodes_return\fP\^, *\^\fImax_keycodes_return\fP\^;
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.LP
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int XSetModifierMapping(\^\fIdisplay\fP, \fImodmap\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.br
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XModifierKeymap *\fImodmap\fP\^;
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.LP
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XModifierKeymap *XGetModifierMapping(\^\fIdisplay\fP\^)
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.br
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Display *\fIdisplay\fP\^;
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.LP
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XModifierKeymap *XNewModifiermap(\^\fImax_keys_per_mod\fP\^)
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.br
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int \fImax_keys_per_mod\fP\^;
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.LP
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XModifierKeymap *XInsertModifiermapEntry\^(\^\fImodmap\fP, \
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\fIkeycode_entry\fP, \fImodifier\fP\^)
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.br
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XModifierKeymap *\fImodmap\fP\^;
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.br
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KeyCode \fIkeycode_entry\fP\^;
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.br
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int \fImodifier\fP\^;
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.LP
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XModifierKeymap *XDeleteModifiermapEntry\^(\^\fImodmap\fP, \
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\fIkeycode_entry\fP, \fImodifier\fP\^)
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.br
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XModifierKeymap *\fImodmap\fP\^;
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.br
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KeyCode \fIkeycode_entry\fP\^;
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.br
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int \fImodifier\fP\^;
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.LP
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XFreeModifiermap(\^\fImodmap\fP\^)
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.br
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XModifierKeymap *\fImodmap\fP;
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.SH ARGUMENTS
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.\" $Header: display.a,v 1.1 88/02/26 10:26:29 mento Exp $
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.IP \fIdisplay\fP 1i
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Specifies the connection to the X server.
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.ds Kc changed or returned
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.IP \fIfirst_keycode\fP 1i
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Specifies the first KeyCode that is to be \*(Kc.
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.IP \fIkeycode_count\fP 1i
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Specifies the number of KeyCodes that are to be returned.
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.IP \fIkeycode_entry\fP 1i
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Specifies the KeyCode.
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.IP \fIkeysyms\fP 1i
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Specifies an array of KeySyms.
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.IP \fIkeysyms_per_keycode\fP 1i
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Specifies the number of KeySyms per KeyCode.
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.IP \fIkeysyms_per_keycode_return\fP 1i
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Returns the number of KeySyms per KeyCode.
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.IP \fImax_keys_per_mod\fP 1i
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Specifies the number of KeyCode entries preallocated to the modifiers
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in the map.
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.IP \fImax_keycodes_return\fP 1i
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Returns the maximum number of KeyCodes.
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.IP \fImin_keycodes_return\fP 1i
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Returns the minimum number of KeyCodes.
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.IP \fImodifier\fP 1i
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Specifies the modifier.
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.IP \fImodmap\fP 1i
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Specifies the
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.ZN XModifierKeymap
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structure.
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.IP \fInum_codes\fP 1i
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Specifies the number of KeyCodes that are to be changed.
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.SH DESCRIPTION
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.\" $Header: XCKMap.d,v 1.6 88/08/19 20:53:42 mento Exp $
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The
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.ZN XChangeKeyboardMapping
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function defines the symbols for the specified number of KeyCodes
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starting with first_keycode.
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The symbols for KeyCodes outside this range remain unchanged.
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The number of elements in keysyms must be:
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.LP
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.Ds
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num_codes * keysyms_per_keycode
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.De
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.LP
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The specified first_keycode must be greater than or equal to min_keycode
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returned by
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.ZN XDisplayKeycodes ,
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or a
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.ZN BadValue
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error results.
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In addition, the following expression must be less than or equal to
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max_keycode as returned by
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.ZN XDisplayKeycodes ,
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or a
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.ZN BadValue
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error results:
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.LP
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.Ds
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first_keycode + num_codes \- 1
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.De
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.LP
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KeySym number N, counting from zero, for KeyCode K has the following index
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in keysyms, counting from zero:
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.LP
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.Ds
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(K \- first_keycode) * keysyms_per_keycode + N
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.De
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.LP
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The specified keysyms_per_keycode can be chosen arbitrarily by the client
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to be large enough to hold all desired symbols.
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A special KeySym value of
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.ZN NoSymbol
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should be used to fill in unused elements
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for individual KeyCodes.
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It is legal for
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.ZN NoSymbol
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to appear in nontrailing positions
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of the effective list for a KeyCode.
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.ZN XChangeKeyboardMapping
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generates a
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.ZN MappingNotify
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event.
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.LP
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There is no requirement that the X server interpret this mapping.
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It is merely stored for reading and writing by clients.
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.LP
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.ZN XChangeKeyboardMapping
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can generate
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.ZN BadAlloc
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and
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.ZN BadValue
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errors.
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.LP
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.\" $Header: XGetKeyMap.d,v 1.5 88/07/10 11:18:06 mento Exp $
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The
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.ZN XGetKeyboardMapping
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function returns the symbols for the specified number of KeyCodes
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starting with first_keycode.
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The value specified in first_keycode must be greater than
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or equal to min_keycode as returned by
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.ZN XDisplayKeycodes ,
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or a
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.ZN BadValue
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error results.
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In addition, the following expression must be less than or equal
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to max_keycode as returned by
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.ZN XDisplayKeycodes :
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.LP
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.Ds
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first_keycode + keycode_count \- 1
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.De
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.LP
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If this is not the case, a
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.ZN BadValue
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error results.
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The number of elements in the KeySyms list is:
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.LP
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.Ds
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keycode_count * keysyms_per_keycode_return
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.De
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.LP
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KeySym number N, counting from zero, for KeyCode K has the following index
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in the list, counting from zero:
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.Ds
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(K \- first_code) * keysyms_per_code_return + N
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.De
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.LP
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The X server arbitrarily chooses the keysyms_per_keycode_return value
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to be large enough to report all requested symbols.
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A special KeySym value of
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.ZN NoSymbol
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is used to fill in unused elements for
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individual KeyCodes.
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To free the storage returned by
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.ZN XGetKeyboardMapping ,
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use
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.ZN XFree .
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.LP
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.ZN XGetKeyboardMapping
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can generate a
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.ZN BadValue
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error.
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.LP
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The
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.ZN XDisplayKeycodes
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function returns the min-keycodes and max-keycodes supported by the
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specified display.
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The minimum number of KeyCodes returned is never less than 8,
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and the maximum number of KeyCodes returned is never greater than 255.
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Not all KeyCodes in this range are required to have corresponding keys.
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.LP
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.\" $Header: XSetModMap.d,v 1.6 88/08/19 20:58:48 mento Exp $
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The
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.ZN XSetModifierMapping
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function specifies the KeyCodes of the keys (if any) that are to be used
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as modifiers.
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If it succeeds,
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the X server generates a
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.ZN MappingNotify
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event, and
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.ZN XSetModifierMapping
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returns
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.ZN MappingSuccess .
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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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.ZN XModifierKeymap
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structure, a
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.ZN BadLength
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error results.
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.LP
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The modifiermap member of the
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.ZN XModifierKeymap
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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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.ZN Shift ,
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.ZN Lock ,
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.ZN Control ,
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.ZN Mod1 ,
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.ZN Mod2 ,
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.ZN Mod3 ,
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.ZN Mod4 ,
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and
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.ZN Mod5 .
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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 in the
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.ZN Display
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structure,
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or a
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.ZN BadValue
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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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.ZN MappingFailed ,
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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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.ZN XSetModifierMapping
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returns
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.ZN MappingBusy ,
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and none of the modifiers is changed.
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.LP
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.ZN XSetModifierMapping
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can generate
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.ZN BadAlloc
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and
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.ZN BadValue
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errors.
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.LP
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.\" $Header: XGetModMap.d,v 1.3 88/08/19 21:00:28 mento Exp $
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The
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.ZN XGetModifierMapping
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function returns a pointer to a newly created
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.ZN XModifierKeymap
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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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.ZN XFreeModifiermap .
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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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.\" $Header: XNewModMap.d,v 1.5 88/08/19 20:54:43 mento Exp $
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The
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.ZN XNewModifiermap
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function returns a pointer to
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.ZN XModifierKeymap
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structure for later use.
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.LP
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The
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.ZN XInsertModifiermapEntry
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function adds the specified KeyCode to the set that controls the specified
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modifier and returns the resulting
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.ZN XModifierKeymap
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structure (expanded as needed).
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.LP
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The
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.ZN XDeleteModifiermapEntry
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function deletes the specified KeyCode from the set that controls the
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specified modifier and returns a pointer to the resulting
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.ZN XModifierKeymap
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structure.
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.LP
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.\" $Header: XFreeModMap.d,v 1.3 88/04/23 10:21:33 mento Exp $
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The
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.ZN XFreeModifiermap
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function frees the specified
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.ZN XModifierKeymap
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structure.
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.SH STRUCTURES
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The
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.ZN XModifierKeymap
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structure contains:
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.LP
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.Ds 0
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.TA .5i 2.5i
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.ta .5i 2.5i
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typedef struct {
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int max_keypermod; /* This server's max number of keys per modifier */
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KeyCode *modifiermap; /* An 8 by max_keypermod array of the modifiers */
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} XModifierKeymap;
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.De
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.SH DIAGNOSTICS
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.\" $Header: badalloc.e,v 1.3 87/09/11 11:17:14 mento Exp $
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.TP 1i
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.ZN BadAlloc
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The server failed to allocate the requested resource or server memory.
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.\" $Header: badvalue.e,v 1.1 87/09/04 08:23:19 mento Exp $
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.TP 1i
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.ZN BadValue
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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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XFree(3X11),
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XSetPointerMapping(3X11)
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.br
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\fI\*(xL\fP
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