Mercurial > hg > xemacs-beta
comparison man/lispref/dialog.texi @ 0:376386a54a3c r19-14
Import from CVS: tag r19-14
| author | cvs |
|---|---|
| date | Mon, 13 Aug 2007 08:45:50 +0200 |
| parents | |
| children | 74fd4e045ea6 |
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| -1:000000000000 | 0:376386a54a3c |
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| 1 @c -*-texinfo-*- | |
| 2 @c This is part of the XEmacs Lisp Reference Manual. | |
| 3 @c Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc. | |
| 4 @c See the file lispref.texi for copying conditions. | |
| 5 @setfilename ../../info/dialog.info | |
| 6 @node Dialog Boxes, Toolbar, Menus, Top | |
| 7 @chapter Dialog Boxes | |
| 8 @cindex dialog box | |
| 9 | |
| 10 @menu | |
| 11 * Dialog Box Format:: | |
| 12 * Dialog Box Functions:: | |
| 13 @end menu | |
| 14 | |
| 15 @node Dialog Box Format | |
| 16 @section Dialog Box Format | |
| 17 | |
| 18 A dialog box description is a list. | |
| 19 | |
| 20 @itemize @bullet | |
| 21 @item | |
| 22 The first element of the list is a string to display in the dialog box. | |
| 23 @item | |
| 24 The rest of the elements are descriptions of the dialog box's buttons. | |
| 25 Each one is a vector of three elements: | |
| 26 @itemize @minus | |
| 27 @item | |
| 28 The first element is the text of the button. | |
| 29 @item | |
| 30 The second element is the @dfn{callback}. | |
| 31 @item | |
| 32 The third element is @code{t} or @code{nil}, whether this button is | |
| 33 selectable. | |
| 34 @end itemize | |
| 35 @end itemize | |
| 36 | |
| 37 If the callback of a button is a symbol, then it must name a command. | |
| 38 It will be invoked with @code{call-interactively}. If it is a list, | |
| 39 then it is evaluated with @code{eval}. | |
| 40 | |
| 41 One (and only one) of the buttons may be @code{nil}. This marker means | |
| 42 that all following buttons should be flushright instead of flushleft. | |
| 43 | |
| 44 The syntax, more precisely: | |
| 45 | |
| 46 @example | |
| 47 form := <something to pass to `eval'> | |
| 48 command := <a symbol or string, to pass to `call-interactively'> | |
| 49 callback := command | form | |
| 50 active-p := <t, nil, or a form to evaluate to decide whether this | |
| 51 button should be selectable> | |
| 52 name := <string> | |
| 53 partition := 'nil' | |
| 54 button := '[' name callback active-p ']' | |
| 55 dialog := '(' name [ button ]+ [ partition [ button ]+ ] ')' | |
| 56 @end example | |
| 57 | |
| 58 @node Dialog Box Functions | |
| 59 @section Dialog Box Functions | |
| 60 | |
| 61 @defun popup-dialog-box dbox-desc | |
| 62 This function pops up a dialog box. @var{dbox-desc} describes how the | |
| 63 dialog box will appear (@pxref{Dialog Box Format}). | |
| 64 @end defun | |
| 65 | |
| 66 @xref{Yes-or-No Queries}, for functions to ask a yes/no question using | |
| 67 a dialog box. |