[EMAIL PROTECTED] wrote:
> Aldo,
>
> Quick comment. I have a window that I defined with
> -style => WS_OVERLAPPED.
> This produced a window with a titlebar with no
> minimzie/maximize/close buttons on it. Now that I use
> -addstyle => WS_OVERLAPPED I will get a window with
> minimize/maximize/close buttons. Is this a bug?
no, no and no.
the *real* *deal* here is that, ideally, you should never
have to mess with style constants, but rather stick with the
provided options.
I say 'ideally' because implementing ALL of them is a fairly
huge task, and in fact there are a number of things that
can be achieved only by mangling the style.
still, the word of wisdom is (pardon the caps):
IF YOU ARE WORKING WITH STYLE CONSTANTS, YOU ARE EXPECTED
TO HAVE A GOOD UNDERSTANDING OF WHAT'S HAPPENING BEHIND
THE SCENES (eg. have a copy of the MSDN library handy),
OTHERWISE PLEASE DON'T MESS AT ALL!!!
in your case what's happening is: a Window is by default
created with the WS_OVERLAPPEDWINDOW style, which is a
combination of the following styles:
WS_OVERLAPPED
WS_SYSMENU
WS_THICKFRAME
WS_MINIMIZEBOX
WS_MAXIMIZEBOX
by using -style, you are negating everything except
WS_OVERLAPPED, which is what you want to have. by using
-addstyle instead you are adding WS_OVERLAPPED to
WS_OVERLAPPEDWINDOW, which already contains it, so in
practice you're changing nothing.
I didn't say that you should blindly s/-style/-addstyle/,
but that most of the times -addstyle is more convenient
for you; and that in any case where you're using styles,
you're swimming in undocumented, unimplemented, unreliable
water.
I can't stress this enough: all the -style stuff is
provided as a low level access for who has the guts
to play with the internals of the Windows APIs, it's not
intended to be a commonly useable feature.
BTW, in v0.0.490 I've added the following options to the
Window and DialogBox classes:
-topmost => 1/0
-minimizebox => 1/0
-maximizebox => 1/0
-sizable => 1/0
-menubox => 1/0
it's highly recommended to use these, instead of anything
that has to do with style.
cheers,
Aldo
__END__
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