Alpha channel transparent

Byak@ · #1 (**permalink**) 04-12-2009, 10:47 AM

on Desktop.
for example we have transparent formex (TransparencyKey) and now we draw png image with alpha transparent. but our alpha thrasparent now has color as TransparencyKey.
how can be done alpha transparent? (NOT OPACITY!!!!)

i'm see it in miranda and it is very nice))

agraham · #2 (**permalink**) 04-12-2009, 01:06 PM

Quote:

Originally Posted by Byak@

how can be done alpha transparent? (NOT OPACITY!!!!)

What's the difference?

This is not easily possible, even with the Door library. For a Form to support alpha transparency ir needs to have its ControlStyle SupportsTransparentBackColor set True, the default is False.

From MSDN : SupportsTransparentBackColor : If true, the control accepts a BackColor with an alpha component of less than 255 to simulate transparency.

Unfotunately the Forms' method, SetStyle, that does this is not a Public method and can only be called by another method belonging to the Form. It is not accessible to the Door library

Byak@ · #3 (**permalink**) 04-12-2009, 01:37 PM

Quote:

Originally Posted by agraham

What's the difference?

in screenshot text is not transparented...

As I understand it can not be done with Basic4ppc?

agraham · #4 (**permalink**) 04-14-2009, 05:50 PM

Quote:

Originally Posted by Byak@

in screenshot text is not transparented...

I see what you mean.

Quote:

As I understand it can not be done with Basic4ppc?

IF I added this to the FormEx library is there anything else you think might be useful?

Byak@ · #5 (**permalink**) 04-16-2009, 01:31 PM

of course! this is a big plus for basic4ppc and this will further bring it to other programming languages

i'm look forward to this :-[

agraham · #6 (**permalink**) 04-16-2009, 01:50 PM

Quote:

Originally Posted by Byak@

i'm look forward to this :-[

Disappointment then I'm afraid. I tried this yesterday and SupportsTransparentBackColor doesn't work on a Form in the way expected

. Googling around other people have tried this and found the same. It seems the only way to do it is to take over drawing the Form yourself at a low-level.

Byak@ · #7 (**permalink**) 04-16-2009, 08:10 PM

i'm don't understand =((

agraham · #8 (**permalink**) 04-17-2009, 10:14 AM

I won't be doing it!

Byak@ · #9 (**permalink**) 04-18-2009, 04:11 PM

:-(
Erel what you say about it?it is very important for me =(((

Erel · #10 (**permalink**) 04-19-2009, 02:56 PM

Maybe in the future, but as it is a desktop-only feature it will not have high priority.