Transparent form

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4 total messages Started by Vinko Mon, 21 Apr 2003 21:54

#16835

Author: Vinko
Date: Mon, 21 Apr 2003 21:54

12 lines
1077 bytes

Hi!

I would like to make transparent form , also when
form is resized or moved. Is there any simple way?

I tryed with,
Form->Brush->Style = bsClear;
Form->BorderStyle = bsNone;
but form is not repainted when is moved.

Thank you,
  Saso

Re: Transparent form

#16837

Author: Remy Lebeau (TeamB)
Date: Mon, 21 Apr 2003 22:25

18 lines
1401 bytes

"Vinko" <digitalsv@email.si> wrote in message
news:3ea468b7@newsgroups.borland.com...

> I would like to make transparent form , also when
> form is resized or moved. Is there any simple way?

Override the form's inherited CreateParams() method and include the
WS_EX_TRANSPARENT style to the ExStyle value, ie.

    void __fastcall TForm1::CreateParams(TCreateParams &Params)
    {
        TForm::CreateParams(Params);
        Params.ExStyle |= WS_EX_TRANSPARENT;
    }


Gambit

Re: Transparent form

#16851

Author: Vinko
Date: Tue, 22 Apr 2003 08:09

30 lines
1673 bytes

Hi!

That only works if form is resized, if it is moved
form is not refreshed!

Thank you, Saso

"Remy Lebeau (TeamB)" <gambit47@yahoo.com> wrote in message
news:3ea46fb7$1@newsgroups.borland.com...
>
> "Vinko" <digitalsv@email.si> wrote in message
> news:3ea468b7@newsgroups.borland.com...
>
> > I would like to make transparent form , also when
> > form is resized or moved. Is there any simple way?
>
> Override the form's inherited CreateParams() method and include the
> WS_EX_TRANSPARENT style to the ExStyle value, ie.
>
>     void __fastcall TForm1::CreateParams(TCreateParams &Params)
>     {
>         TForm::CreateParams(Params);
>         Params.ExStyle |= WS_EX_TRANSPARENT;
>     }
>
>
> Gambit
>
>
>

Re: Transparent form

#16874

Author: Damon Chandler (TeamB)
Date: Wed, 23 Apr 2003 06:35

23 lines
1760 bytes

Hi Saso,
> I would like to make transparent form , also when
> form is resized or moved. Is there any simple way?

One way to create a transparent-type form is to define the shape of your
window via a custom GDI region object; specifically, a region that includes
only the non-transparent areas of your form (e.g., the title-bar, resizing
border, and child controls).  See these articles...

  http://www.bridgespublishing.com/articles/
  issues/0002/Image_shaped_forms.htm

  http://www.bridgespublishing.com/articles/
  issues/0111/Custom_buttons__part_III.htm

(Note that Windows 2000/XP+ supports natively translucent and transparent
forms; see
http://www.bridgespublishing.com/articles/issues/0103/Transparent_2000.htm.)

Good luck,
-- 
Damon (TeamB)
BCBCAQ--http://bcbcaq.bytamin-c.com

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