[syslinux] Does advanced menu actually support ontimeout?

[Nazo]

On 11/6/05, Murali Krishnan Ganapathy <gmurali at cs.uchicago.edu> wrote:
> reg_ontimeout(ontimeout,1500,0);
>
> should become
>
> reg_ontimeout(ontimeout,150,10);
>
> Basically the second argument should also be non-zero. In the second
> case, we are saying that the timeout handler should be called if no key
> is pressed for 15 seconds (150*10 centiseconds) and check for a key
> should be done every 10 centi-seconds.
>
> Also, there is a routine you can call to add a seperator. The call is
> equivalent to what you are doing, so don't have to worry about it.
>
> Hope this helps.
>
> - Murali
>
> Nazo wrote:
> > On 11/6/05, Nazo <nazosan at gmail.com> wrote:
> >
> >> On 11/6/05, Murali Krishnan Ganapathy <gmurali at cs.uchicago.edu> wrote:
> >>
> >>> For the tab_key code to take effect you need to register the "keys
> >>> handler". Basically the menu system will call your keys handler, if the
> >>> user presses any key which it does not understand. You can do what you
> >>> want with it.
> >>>
> >>> - Murali
> >>>
> >>> Nazo wrote:
> >>>
> >>>> I've finally gotten around to playing with the advanced menu, though
> >>>> the complex example is definitely still beyond me.  I'm trying to
> >>>> figure out a few basics from it, such as the tab key for line editing
> >>>> (don't know what I've done wrong here since it seems like I copied
> >>>> that part right) and the timeout.  It looks to me like the only
> >>>> ontimeout implemented so far is an option to not even show the menu at
> >>>> all if the user doesn't press a key within a certain time period.
> >>>> But, I want it to show the menu and simply time out after a while of
> >>>> no keypresses.  Is there any way to implement this that doesn't
> >>>> require several pages of code?  Have I just gotten mixed up and it
> >>>> already does this but I copied that code wrong too?
> >>>>
> >>>> _______________________________________________
> >>>> SYSLINUX mailing list
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> >>>> Please do not send private replies to mailing list traffic.
> >>>>
> >>>>
> >>>>
> >>>>
> >>>
> >> Yes, well, I caught that part.  Thing is, I copied these two lines
> >> from the complex sample code:
> >>   reg_handler(HDLR_KEYS,&keys_handler);
> >>   reg_ontimeout(ontimeout,1000,0);
> >>
> >> And the appropriate declarations for those to work (as far as I know
> >> anyway) and neither one is functioning.  That's why I asked in here.
> >> Both seem to fit that criteria mentioned earlier.  I'm probably
> >> missing something, but, I'm afraid I don't know what it is.  If it
> >> were as simple as just looking in the manual and automatically
> >> understanding I wouldn't be asking here, and I still hesitated as it
> >> was.
> >>
> >>
> >
> >
> > I guess, in case it makes it any easier, I should just paste the code
> > I currently have.  Note that it's probably not all right and I know
> > it.  I'm trying to learn as I go, but, some of this stuff is a bit
> > over my head as it is.  I started from the complex code and tried to
> > simplify as much as I could.  Here's my current attempt at "complex"
> > menu code:
> >
> > /* -----------------------------------------------------------------------------
> >   Advanced menu system for syslinux - C code.
> >
> >   For main PC
> > ----------------------------------------------------------------------------- */
> >
> >
> > #ifndef NULL
> > #define NULL ((void *) 0)
> > #endif
> >
> > #include "menu.h"
> > #include "com32io.h"
> > #include <string.h>
> >
> > #define EDITPROMPT 22
> >
> > TIMEOUTCODE ontimeout() {
> >   beep();
> >   return CODE_WAIT;
> > }
> >
> >
> > void keys_handler(t_menusystem *ms, t_menuitem *mi,unsigned int scancode) {
> >    char nc;
> >
> >    if (((scancode & 0xFF) == 0x09) && (mi->action == OPT_RUN)) {
> >      nc = getnumcols();
> >      // User hit TAB
> >      gotoxy(EDITPROMPT,1,ms->menupage);
> >      csprint("Command line:",0x07);
> >      editstring(mi->data,ACTIONLEN);
> >      gotoxy(EDITPROMPT,1,ms->menupage);
> >      cprint(' ',0x07,nc-1,ms->menupage);
> >    }
> > }
> >
> >
> > int main(void) {
> >   t_menuitem * curr;
> >
> >   char MAIN;
> >
> >   reg_handler(HDLR_KEYS,&keys_handler);
> >   reg_ontimeout(ontimeout,1500,0);
> >
> >
> >   // setvideomode(0)
> >
> >   init_menusystem(NULL);
> >   set_window_size(1,1,23,78); // Leave one row/col border all around
> >
> >   MAIN = add_menu(" Syslinux Boot Menu ", 10);
> >     add_item("<W>indows","Boot Windows",OPT_RUN,"chain.c32 hd0 2",0);
> >     add_item("<L>inux","Boot Gentoo Linux 2005.1",OPT_RUN,"gentoo
> > initrd=gentinit vga=0x31b root=/dev/ram0 real_root=/dev/hda7 udev
> > ramdisk=16384 video=vesafb:mtrr,ywrap,1280x1024-32 at 60",0);
> >     add_item("<G>eeXboX","Boot GeeXboX",OPT_RUN,"geexbox
> > initrd=geexinit.gz root=/dev/ram0 rw init=linuxrc boot=hda1 splash=0
> > vga=0x315 video=vesafb:ywrap,mtrr",0);
> >     add_item("<P>artition Magic 8","Boot Partition Magic 8 Rescue
> > Disk",OPT_RUN,"memdisk initrd=/disks/pqmagic.gz floppy",0);
> >     add_item("<M>emtest86+ 1.60","Boot MemTest86+",OPT_RUN,"memtestp",0);
> >     add_item("Prime<9>5 24.13","Boot Prime95 Test
> > Disk",OPT_RUN,"mprime initrd=mpinit.gz rw ramdisk_size=5325",0);
> >     add_item("DOS <B>ootdisk (Windows 98 based)","Boot
> > DOS",OPT_RUN,"memdisk initrd=/disks/dos.gz floppy",0);
> >     add_item("DOS <6>.22 Bootdisk","Boot DOS",OPT_RUN,"memdisk
> > initrd=/disks/dos622.gz floppy",0);
> >     add_item("----------------------------------","SEPERATOR",OPT_INACTIVE,"SEPERATOR",0);
> >     add_item("E<x>it","Return to Prompt",OPT_EXITMENU,"exit",0);
> >
> >
> >   curr = showmenus(MAIN);
> >   if (curr) {
> >         if (curr->action == OPT_RUN) {
> >             if (issyslinux()) runsyslinuxcmd(curr->data);
> >             else csprint(curr->data,0x07);
> >             return 1;
> >         }
> >         csprint("Error in programming!",0x07);
> >   }
> >   return 0;
> > }
> >
> >
>
>

In other words, I had it done correctly, I just had it set to 10x the
length of time I actually wanted...  -.-  Well, the original complex
code I copied from says 1000 = 10 seconds, so I just changed it to
1500.  Well, thanks for that info.

Any idea what I did wrong on the tab key thing while you're at it?