All these functions pop up a window containing the prompt and, if
appropriate, a box containing whatever the dialog wants to display.
They are all built up from ndialog objects
and the MENU() display function.
=dialog_yesno()=
dialog_yesno(title,message,height,width)
Put up a dialog box asking for a yes/no answer. You can autosize
the dialog box by setting height and width to -1.
=dialog_msgbox()=
dialog_msgbox(title,message,height,width,pause)
Put up a dialog box with a message in it. If pause is
nonzero, an [OK] button will be displayed and the function
will wait until you press it, otherwise it will immediately return.
=dialog_mesgbox()=
dialog_mesgbox(title,message,height,width)
Put up a dialog box with a message in it and wait for the user
to press the [OK] button.
> NOTE: This is not correctly implemented. If you pass it a
> message string that’s longer or wider than the screen,
> dialog_mesgbox will silently fail.
=dialog_menu()=
dialog_menu(title,message,height,width,menu_height,menu_items,items,result,ch,sc)
Put up a menu box and wait for the user to select a menu item or
cancel out of the box.
<table border=1>
<tr><th valign=top align=left>`title`</th>
<td>The title on the dialog window</td></tr>
<tr><th valign=top align=left>`message`</th>
<td>A message printed at the top of the dialog window</td></tr>
<tr><th valign=top align=left>`width`</th>
<td>How wide the window should be (-1 for autosizing)</td></tr>
<tr><th valign=top align=left>`height`</th>
<td>How deep the window should be (-1 for autosizing)</td></tr>
<tr><th valign=top align=left>`menu_height`</th>
<td>How many items in the menu should be visible at any time
(Note that this needs to be 3 less than height, because room is
needed for the **[CANCEL]** button and a separator line.)</td></tr>
<tr><th valign=top align=left>`menu_items`</th>
<td>How long menu[] is.</td></tr>
<tr><th valign=top align=left>`menu`</th>
<td>The menu items, as an array of pairs of strings. The first
string (**menu[x+x]**) is a keyword for this menu item, the
second string (**menu[x+x+1]**) is the description for this
menu item. You need to make certain that **menu** contains
**2*menu_items** entries, or hilarious crashes will happen.</td></tr>
<tr><th valign=top align=left>`result`</th>
<td>A string that holds the selected keyword.</td></tr>
<tr><th valign=top align=left>`ch,sc`</th>
<td>Horrible compatability kludges to keep track of the last item
selected. You need to set them to zero before you call dialog_menubox.</td></tr>
</table>
=dialog_checklist()=
dialog_checklist(title,message,height,width,list_height,nr_list,items,result)
Like dialog_menubox(), except it puts up a list of checkable
items. Note that there are no ch and sc parameters,
and that the menu parameter is slightly different. For
dialog_checklist(), menu is composed of string triples;
menu[x+x] is the key, menu[x+x+1] is the description,
and menu[x+x+2] is the value “on” to tell the function
that this item is selected. If the user does not cancel out of
this form, result contains a whitespace-delimited list of
selected keywords.
=dialog_radiolist()=
dialog_radiolist(title,message,height,width,list_height,nr_list,items,result)
Like dialog_checklist(), except only one item can be checked
at a time.
=dialog_gauge()=
dialog_gauge(title,message,y,x,height,width,perc)
Display a window that contains a progress gauge (from 0%
to **100%)
=dialog_clear_norefresh()=
dialog_clear_norefresh()
clears the current window, but doesn’t refresh the screen.
=dialog_clear()=
dialog_clear()
clears the current window and refreshes the screen.
=dialog_update()=
dialog_update()
updates the window, like the curses function wrefresh