1. Win32Lib: Window Icon
Just wondering if there is a better way to do this... I want to bind a
program with a custom icon and have that icon be displayed in the corner of
my window. I am using the following code.
-- start snippet --
sequence cl
cl = command_line()
setIcon( MyWindow, cl[2] )
-- end snippet --
This assures that the icon will show up in my window regardless of what the
executable is named.
So is there a better way to accomplish this? If not, may I suggest to
David that this might make a good example for 'setIcon' in 'Win32Lib.htm'.
--Brian
2. Re: Win32Lib: Window Icon
- Posted by Caballero Rojo <pampeano at ROCKETMAIL.COM>
Feb 25, 2000
-
Last edited Feb 26, 2000
Hello Brian,
Just use the .ico file when you not compile your program.
And when you're going to do it, change the ico file to the
executable file =)
--
Best regards,
Caballero Rojo mailto:pampeano at rocketmail.com
Friday, February 25, 2000, 6:24:56 AM, you wrote:
BB> Just wondering if there is a better way to do this... I want to bind a
BB> program with a custom icon and have that icon be displayed in the corner of
BB> my window. I am using the following code.
BB> -- start snippet --
BB> sequence cl
BB> cl = command_line()
BB> setIcon( MyWindow, cl[2] )
BB> -- end snippet --
BB> This assures that the icon will show up in my window regardless of what the
BB> executable is named.
BB> So is there a better way to accomplish this? If not, may I suggest to
BB> David that this might make a good example for 'setIcon' in 'Win32Lib.htm'.
BB> --Brian
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3. Re: Win32Lib: Window Icon
On Fri, 25 Feb 2000 19:41:36 -0300, Caballero Rojo wrote:
>Hello Brian,
> Just use the .ico file when you not compile your program.
> And when you're going to do it, change the ico file to the
> executable file =)
Thanks, I realize that. The point I was trying to make was that when you
bind a program with an icon, and you want that icon to show up in your
application's window, you need a way of saying "use the icon that is
contained in this executable, regardless of what is called".
When I first starting adding icons to bound programs, I was doing something
like:
setIcon( MyWindow, "MyProgram.exe" )
Well, this works fine until you rename "MyProgram.exe"
to "MyOldProgram.exe". (Now your program won't find "MyProgram.exe" and
won't show it's icon in the window.) By using 'command_line' to get the
name of your program, you can be assured that the icon will always show up
in your bound app's window.
Unless somebody knew of a better way to do this, I was merely pointing out
a not-so-obvious idea for other users of Win32Lib who want to bind their
programs with custom icons... (at least it wasn't initially obvious to me
and I just thought that it might be a nice example for the Win32Lib
documentation).
-- Brian
4. Re: Win32Lib: Window Icon
On Fri, 25 Feb 2000 16:54:52 -0500, Brian Broker <bkb at CNW.COM> wrote:
>Unless somebody knew of a better way to do this, I was merely pointing out
>a not-so-obvious idea for other users of Win32Lib who want to bind their
>programs with custom icons... (at least it wasn't initially obvious to me
>and I just thought that it might be a nice example for the Win32Lib
>documentation).
>
Brian:
Look at the WNDCLASSEX structure in windows. You will find a
member called cbClsExtra which specifies the number of EXTRA bytes
to allocate following the window's instance. Now if you can convince
David ( or edit your copy of win32lib ) to allow you to change
this size to fit your Icon. You can store your Icon there and it
will always be available no matter what you call your program.
You will have to figure out how to get it's offset, I think you
can use GetWindowLong with nIndex and use that to grab and copy
out 32 bits at a time.
Bernie
5. Re: Win32Lib: Window Icon
- Posted by Robert Craig <rds at ATTCANADA.NET>
Feb 25, 2000
-
Last edited Feb 26, 2000
Brian Broker writes:
> Just wondering if there is a better way to do this...
> I want to bind a program with a custom icon and have
> that icon be displayed in the corner of my window.
> I am using the following code.
>
> -- start snippet --
> sequence cl
> cl = command_line()
> setIcon( MyWindow, cl[2] )
> -- end snippet --
>
> This assures that the icon will show up in my window
> regardless of what the executable is named.
You should look at euphoria\demo\win32\window.exw
in the Euphoria 2.2 release. It contains the code
that you need to display an icon in the top left corner
of a window. The 3 key lines are:
icon_handle = c_func(LoadIcon, {instance(), allocate_string("exw")})
poke4(wndclass + hIcon, icon_handle)
poke4(wndclass + hIconSm, icon_handle)
The standard icon contained in exw.exe for 2.2 is
called "exw" regardless of what you call your bound .exe file.
When you run bindw, you can specify an icon of your own,
but the name will still be "exw".
Your icon must contain a single image, and be 2238 bytes
or less in size, otherwise it might not be displayed. (see bind.doc)
Regards,
Rob Craig
Rapid Deployment Software
http://www.RapidEuphoria.com
6. Re: Win32Lib: Window Icon
- Posted by Mathew Hounsell <mfh03 at UOW.EDU.AU>
Feb 26, 2000
-
Last edited Feb 27, 2000
Date sent: Fri, 25 Feb 2000 18:11:38 -0500
From: Bernie Ryan <LockCityData at CS.COM>
Subject: Re: Win32Lib: Window Icon
> Look at the WNDCLASSEX structure in windows. You will find a
> member called cbClsExtra which specifies the number of EXTRA bytes
> to allocate following the window's instance. Now if you can convince
> David ( or edit your copy of win32lib ) to allow you to change
> this size to fit your Icon. You can store your Icon there and it
> will always be available no matter what you call your program.
> You will have to figure out how to get it's offset, I think you
> can use GetWindowLong with nIndex and use that to grab and copy
> out 32 bits at a time.
One small problem, the Windows will not allow extra size of more than 40 bytes
per window
class. Also it is a runtime thing.
-------------------------
Sincerely,
Mathew Hounsell
mat.hounsell at excite.com
