Adding Columns to comboboxes through API

[Lori Taylor]

Does anyone know how to add columns to comboboxes through API. I have seen
it done before but cannot figure out how. Can anyone help me?

[Mattias Sjögren]

Lori,

>Does anyone know how to add columns to comboboxes through API. I have seen
>it done before but cannot figure out how. Can anyone help me?

There's no way to do thatwith a regular Combobox. The options you have
are to use a fixed-width font, create an owner-draw Combobox control
and draw the columns yourself, or find a third-party control that
supports it.


Mattias

____________________________________________
Mattias Sjögren - mattiass @ hem.passagen.se
http://hem.spray.se/mattias.sjogren/

[Michael Culley]

mattiass,

AFAIK this is possible. I am pretty sure I have seen it in VBPJ before. I
don't think it works that well because if an item goes past the tab it pushes
everything over in the other columns.

Michael Culley

mattiass.dont.want.spam@hem.passagen.se (Mattias Sjögren) wrote:
>Lori,
>
>>Does anyone know how to add columns to comboboxes through API. I have
seen
>>it done before but cannot figure out how. Can anyone help me?
>
>There's no way to do thatwith a regular Combobox. The options you have
>are to use a fixed-width font, create an owner-draw Combobox control
>and draw the columns yourself, or find a third-party control that
>supports it.
>
>
>Mattias
>
>____________________________________________
>Mattias Sjögren - mattiass @ hem.passagen.se
> http://hem.spray.se/mattias.sjogren/

[Eric D. Burdo]

You need to use the SendMessage API and set tabstops. This breaks your
combo box into 'columns' in a sense. When you add text, you need to
separate each part via a tab char (vbTab). You can find sample code for
this at: http://www.mvps.org/vbnet

--

Eric D. Burdo, Red-Leif International
VB Programmer and Consultant
<http://www.redleif.com>

*** Please reply to the newsgroup so all can benefit. ***
"Lori Taylor" <latwv@yahoo.com> wrote in message
news:393e4392$1@news.devx.com...
>
> Does anyone know how to add columns to comboboxes through API. I have
seen
> it done before but cannot figure out how. Can anyone help me?

[Mark Alexander Bertenshaw]

Eric -

The last time I looked, there was no CB_SETTABSTOPS message (believe me,
I've tried looking for it).

This is what is in winuser.h


/*
* Combo Box messages
*/
#ifndef NOWINMESSAGES
#define CB_GETEDITSEL 0x0140
#define CB_LIMITTEXT 0x0141
#define CB_SETEDITSEL 0x0142
#define CB_ADDSTRING 0x0143
#define CB_DELETESTRING 0x0144
#define CB_DIR 0x0145
#define CB_GETCOUNT 0x0146
#define CB_GETCURSEL 0x0147
#define CB_GETLBTEXT 0x0148
#define CB_GETLBTEXTLEN 0x0149
#define CB_INSERTSTRING 0x014A
#define CB_RESETCONTENT 0x014B
#define CB_FINDSTRING 0x014C
#define CB_SELECTSTRING 0x014D
#define CB_SETCURSEL 0x014E
#define CB_SHOWDROPDOWN 0x014F
#define CB_GETITEMDATA 0x0150
#define CB_SETITEMDATA 0x0151
#define CB_GETDROPPEDCONTROLRECT 0x0152
#define CB_SETITEMHEIGHT 0x0153
#define CB_GETITEMHEIGHT 0x0154
#define CB_SETEXTENDEDUI 0x0155
#define CB_GETEXTENDEDUI 0x0156
#define CB_GETDROPPEDSTATE 0x0157
#define CB_FINDSTRINGEXACT 0x0158
#define CB_SETLOCALE 0x0159
#define CB_GETLOCALE 0x015A
#if(WINVER >= 0x0400)
#define CB_GETTOPINDEX 0x015b
#define CB_SETTOPINDEX 0x015c
#define CB_GETHORIZONTALEXTENT 0x015d
#define CB_SETHORIZONTALEXTENT 0x015e
#define CB_GETDROPPEDWIDTH 0x015f
#define CB_SETDROPPEDWIDTH 0x0160
#define CB_INITSTORAGE 0x0161
#endif /* WINVER >= 0x0400 */
#if(WINVER >= 0x0400)
#define CB_MSGMAX 0x0162
#else
#define CB_MSGMAX 0x015B
#endif
#endif /* !NOWINMESSAGES */



--

---------------------------------------
Mark Alexander Bertenshaw
Programmer/Analyst
Prime Response
Brentford
UK
"Eric D. Burdo" <vbtips@redleif.com> wrote in message
news:393fafda$1@news.devx.com...
> You need to use the SendMessage API and set tabstops. This breaks your
> combo box into 'columns' in a sense. When you add text, you need to
> separate each part via a tab char (vbTab). You can find sample code for
> this at: http://www.mvps.org/vbnet
>
> --
>
> Eric D. Burdo, Red-Leif International
> VB Programmer and Consultant
> <http://www.redleif.com>
>
> *** Please reply to the newsgroup so all can benefit. ***
> "Lori Taylor" <latwv@yahoo.com> wrote in message
> news:393e4392$1@news.devx.com...
> >
> > Does anyone know how to add columns to comboboxes through API. I have
> seen
> > it done before but cannot figure out how. Can anyone help me?
>
>

[Damit Senanayake]

"Mark Alexander Bertenshaw" <Mark.Bertenshaw@virgin.net> wrote in message
news:39402d6d@news.devx.com...

: The last time I looked, there was no CB_SETTABSTOPS message (believe me,
: I've tried looking for it).

I think Eric was thinking of LB_SETTABSTOPS... but what happens if you send
LB_SETTABSTOPS to the listbox portion of the combobox (not in Dropdown List,
obviously)?

--
Damit Senanayake | damit@mvps.org | http://members.xoom.com/damit
Please reply to newsgroups, not by e-mail. | ICQ: 6930718

[Mark Alexander Bertenshaw]

Damit -

I tried to enumerate windows on the _DropDown event last time, and I didn't
find any more child controls other than an edit control. Just to humour
you, I tried again, but then I noticed that the list box portion overlapped
the edge of the window. Then I remembered that the list box is on the
desktop window. So looking there, I discovered a window of class
"ComboLBox". I tried sending LB_SETTABSTOPS to it, and it crashed. I will
try again, but it is getting very late.

Cheers,
--

---------------------------------------
Mark Alexander Bertenshaw
Programmer/Analyst
Prime Response
Brentford
UK
"Damit Senanayake" <damit@mvps.org> wrote in message
news:3940e3cc@news.devx.com...
> "Mark Alexander Bertenshaw" <Mark.Bertenshaw@virgin.net> wrote in message
> news:39402d6d@news.devx.com...
>
> : The last time I looked, there was no CB_SETTABSTOPS message (believe me,
> : I've tried looking for it).
>
> I think Eric was thinking of LB_SETTABSTOPS... but what happens if you
send
> LB_SETTABSTOPS to the listbox portion of the combobox (not in Dropdown
List,
> obviously)?
>
> --
> Damit Senanayake | damit@mvps.org | http://members.xoom.com/damit
> Please reply to newsgroups, not by e-mail. | ICQ: 6930718
>
>
>
>

[Damit Senanayake]

Hi Mark,

: I tried to enumerate windows on the _DropDown event last time, and I
didn't
: find any more child controls other than an edit control.

Hmm... actually, I also realized (after posting :-( ) that the listbox is a
child of the desktop.

:I tried sending LB_SETTABSTOPS to it, and it crashed.

That's interesting. What was the error, and what crashed? The
desktop/Explorer? I suppose it would have been an access violation, since
the lpiTabs parameter points to la-la land in the desktop's address space...
looks like yet another job for SHLoadInProc! <vbg>

Well, you don't need to put yourself out doing it; I was just giving a WAG.
:-)
--
Damit Senanayake | damit@mvps.org | http://members.xoom.com/damit
Please reply to newsgroups, not by e-mail. | ICQ: 6930718

[Mark Alexander Bertenshaw]

Damit -

> Well, you don't need to put yourself out doing it; I was just giving a
WAG.
> :-)

That's all right, I only looked into it because I was interested. And yes,
it was an Access Violation - but that's because I used the wrong declaration
:-( I tried again, and it just doesn't work.

BTW - what's a WAG?

--

---------------------------------------
Mark Alexander Bertenshaw
Programmer/Analyst
Prime Response
Brentford
UK

[Paul Little]

WAG = Wild *** Guess.
--
Paul Little, Senior Programmer/Analyst
SVi Retail Systems
San Diego, CA

"Mark Alexander Bertenshaw" <Mark.Bertenshaw@virgin.net> wrote in message
news:39421818$1@news.devx.com...

> BTW - what's a WAG?

[Paul Clapham]

Too tacky! I only use SWAGs (Scientific Wild *** Guess).

Paul Little <PLittle@SViRetail.com> wrote in message
news:3946d93d$1@news.devx.com...
> WAG = Wild *** Guess.
> --
> Paul Little, Senior Programmer/Analyst
> SVi Retail Systems
> San Diego, CA
>
> "Mark Alexander Bertenshaw" <Mark.Bertenshaw@virgin.net> wrote in message
> news:39421818$1@news.devx.com...
>
> > BTW - what's a WAG?
>
>
>

[Mattias Sjögren]

Lori,

>Does anyone know how to add columns to comboboxes through API. I have seen
>it done before but cannot figure out how. Can anyone help me?

There's no way to do thatwith a regular Combobox. The options you have
are to use a fixed-width font, create an owner-draw Combobox control
and draw the columns yourself, or find a third-party control that
supports it.


Mattias

____________________________________________
Mattias Sjögren - mattiass @ hem.passagen.se
http://hem.spray.se/mattias.sjogren/

[Michael Culley]

mattiass,

AFAIK this is possible. I am pretty sure I have seen it in VBPJ before. I
don't think it works that well because if an item goes past the tab it pushes
everything over in the other columns.

Michael Culley

mattiass.dont.want.spam@hem.passagen.se (Mattias Sjögren) wrote:
>Lori,
>
>>Does anyone know how to add columns to comboboxes through API. I have
seen
>>it done before but cannot figure out how. Can anyone help me?
>
>There's no way to do thatwith a regular Combobox. The options you have
>are to use a fixed-width font, create an owner-draw Combobox control
>and draw the columns yourself, or find a third-party control that
>supports it.
>
>
>Mattias
>
>____________________________________________
>Mattias Sjögren - mattiass @ hem.passagen.se
> http://hem.spray.se/mattias.sjogren/

[Eric D. Burdo]

You need to use the SendMessage API and set tabstops. This breaks your
combo box into 'columns' in a sense. When you add text, you need to
separate each part via a tab char (vbTab). You can find sample code for
this at: http://www.mvps.org/vbnet

--

Eric D. Burdo, Red-Leif International
VB Programmer and Consultant
<http://www.redleif.com>

*** Please reply to the newsgroup so all can benefit. ***
"Lori Taylor" <latwv@yahoo.com> wrote in message
news:393e4392$1@news.devx.com...
>
> Does anyone know how to add columns to comboboxes through API. I have
seen
> it done before but cannot figure out how. Can anyone help me?

[Mark Alexander Bertenshaw]

Eric -

The last time I looked, there was no CB_SETTABSTOPS message (believe me,
I've tried looking for it).

This is what is in winuser.h


/*
* Combo Box messages
*/
#ifndef NOWINMESSAGES
#define CB_GETEDITSEL 0x0140
#define CB_LIMITTEXT 0x0141
#define CB_SETEDITSEL 0x0142
#define CB_ADDSTRING 0x0143
#define CB_DELETESTRING 0x0144
#define CB_DIR 0x0145
#define CB_GETCOUNT 0x0146
#define CB_GETCURSEL 0x0147
#define CB_GETLBTEXT 0x0148
#define CB_GETLBTEXTLEN 0x0149
#define CB_INSERTSTRING 0x014A
#define CB_RESETCONTENT 0x014B
#define CB_FINDSTRING 0x014C
#define CB_SELECTSTRING 0x014D
#define CB_SETCURSEL 0x014E
#define CB_SHOWDROPDOWN 0x014F
#define CB_GETITEMDATA 0x0150
#define CB_SETITEMDATA 0x0151
#define CB_GETDROPPEDCONTROLRECT 0x0152
#define CB_SETITEMHEIGHT 0x0153
#define CB_GETITEMHEIGHT 0x0154
#define CB_SETEXTENDEDUI 0x0155
#define CB_GETEXTENDEDUI 0x0156
#define CB_GETDROPPEDSTATE 0x0157
#define CB_FINDSTRINGEXACT 0x0158
#define CB_SETLOCALE 0x0159
#define CB_GETLOCALE 0x015A
#if(WINVER >= 0x0400)
#define CB_GETTOPINDEX 0x015b
#define CB_SETTOPINDEX 0x015c
#define CB_GETHORIZONTALEXTENT 0x015d
#define CB_SETHORIZONTALEXTENT 0x015e
#define CB_GETDROPPEDWIDTH 0x015f
#define CB_SETDROPPEDWIDTH 0x0160
#define CB_INITSTORAGE 0x0161
#endif /* WINVER >= 0x0400 */
#if(WINVER >= 0x0400)
#define CB_MSGMAX 0x0162
#else
#define CB_MSGMAX 0x015B
#endif
#endif /* !NOWINMESSAGES */



--

---------------------------------------
Mark Alexander Bertenshaw
Programmer/Analyst
Prime Response
Brentford
UK
"Eric D. Burdo" <vbtips@redleif.com> wrote in message
news:393fafda$1@news.devx.com...
> You need to use the SendMessage API and set tabstops. This breaks your
> combo box into 'columns' in a sense. When you add text, you need to
> separate each part via a tab char (vbTab). You can find sample code for
> this at: http://www.mvps.org/vbnet
>
> --
>
> Eric D. Burdo, Red-Leif International
> VB Programmer and Consultant
> <http://www.redleif.com>
>
> *** Please reply to the newsgroup so all can benefit. ***
> "Lori Taylor" <latwv@yahoo.com> wrote in message
> news:393e4392$1@news.devx.com...
> >
> > Does anyone know how to add columns to comboboxes through API. I have
> seen
> > it done before but cannot figure out how. Can anyone help me?
>
>