RE: [Dev-C++] buttons

[James G. <Jam...@Cl...>]

If you give the button an ID of IDCANCEL it will be handled by Windows.

basically Windows defined IDOK and IDCANCEL and when enter and escape =
are
pressed knows exactly what to do.

See http://msdn.microsoft.com/library/psdk/tools/dlgedit_4pdf.htm for =
more
info.

Regards,

James.


-----Original Message-----
From: Jose Manuel Padron Carrillo [mailto:jos...@ya...]
Sent: Monday, January 08, 2001 1:55 PM
To: dev...@li...
Subject: RE: [Dev-C++] buttons



Ramana,

>I realised that I could use the & to "accelerate" a key (I use this=20
>with my menu items, &Open, for example).

I appologise.

>Do you know the way I can make my "&Cancel" button respond to the
"Esc"=20
>key?
>Are there special ways for each key (like DEFPUSHBUTTON, for "Enter")?

I think that is not possible. Check what the Win32 API says:

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D
Windows provides a special keyboard interface for dialog boxes that
carries out special processing for several keys. The interface
generates messages that correspond to certain buttons in the dialog box
or changes the input focus from one control to another. Following are
the keys used in this interface and their respective actions.=20

Key	Action
ALT+mnemonic	Moves the input focus to the first control (having the
WS_TABSTOP style) after the static control containing the given
mnemonic.
DOWN	Moves the input focus to the next control in the group.
ENTER	Sends a WM_COMMAND message to the dialog box procedure. The
wParam parameter is set to IDOK or control identifier of the default
push button.
ESC	Sends a WM_COMMAND message to the dialog box procedure. The wParam
parameter is set to IDCANCEL.
LEFT	Moves the input focus to the previous control in the group.
mnemonic	Moves the input focus to the first control (having the
WS_TABSTOP style) after the static control containing the given
mnemonic.
RIGHT	Moves the input focus to the next control in the group.
SHIFT+TAB	Moves the input focus to the previous control that has the
WS_TABSTOP style.
TAB	Moves the input focus to the next control that has the WS_TABSTOP
style.
UP	Moves the input focus to the previous control in the group.
=20

The Win32 API automatically provides the keyboard interface for all
modal dialog boxes. It does not provide the interface for modeless
dialog boxes unless the application calls the IsDialogMessage function
to filter messages in its main message loop. This means that the
application must pass the message to IsDialogMessage immediately after
retrieving the message from the message queue. The function processes
the messages if it is for the dialog box and returns a nonzero value to
indicate that the message has been processed and must not be passed to
the TranslateMessage or DispatchMessage function.=20

Because the dialog box keyboard interface uses direction keys to move
between controls in a dialog box, an application cannot use these keys
to scroll the contents of any modal dialog box or any modeless dialog
box for which IsDialogMessage is called. When a dialog box has scroll
bars, the application must provide an alternate keyboard interface for
the scroll bars. Note that the mouse interface for scrolling is
available when the system includes a mouse.
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D
=3D=3D=3D=3D=3D=3D

>I also noticed that you and a few other win32 programmers have been=20
>talking about MSDN. I have got a version of the SDK help (win32.hlp)
but this=20
>is very old (based on the content) - it doesn't cover HTML help, only
Win=20
>Help and a few other things are old too. I'll have a look at the MSDN
site,=20
>but could you tell me the URL to download the SDK help or, the
hyperlinks=20
>to take.

Don=B4t remember exactly but here is a start

http://msdn.microsoft.com/ and check for Platform SDK

Latest version of win32.hlp is given out by Borland. The file name is
b5ms.zip (17 Mb).

I=B4ll update soon my pages to the server. There should be the links
http://www.geocities.com/josempadron/

>Also, do you know whether I am using MFC or pure API? I don't use=20
>functions like OnInitDlg(), for dialogs I use a BOOL CALLBACK
function. Oh, and=20
>what does SDK stand for, because although this came from Microsoft, it
seems=20
>to cover some of the things I use (which I thought was pure API). I
could=20
>be using both.

I don=B4t use, know, ... MFC.

Hope this helps. Don=B4t hesitate to ask more.

Cheers,

Chemanuel


__________________________________________________
Do You Yahoo!?
Yahoo! Photos - Share your holiday photos online!
http://photos.yahoo.com/

_______________________________________________
Dev-cpp-users mailing list
Dev...@li...
http://lists.sourceforge.net/mailman/listinfo/dev-cpp-users


* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *=20
This electronic message and any attachment is intended to be=20
read by the named addressee(s) only.=20
Any other recipient should be aware that its contents may be=20
legally privileged and/or confidential and that its use,=20
disclosure, copying or distribution may be unlawful.=20
Unless you are a named addressee, please delete this message=20

Whilst C. & J. Clark International Limited has taken steps=20
to prevent the transmission of computer viruses with electronic mail,=20
responsibility for screening incoming messages and the risk of such=20
transmission and its consequences lies with the recipient.=20

C. & J. Clark International Limited=20
Registered in England and Wales=20
Company No. 141015=20
Registered Office: 40 High Street, Street, Somerset BA16 0YA=20
Telephone: +44 (0) 1458 443131=20
Fax: +44 (0) 1458 447547=20