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Board index FiveWin for Harbour/xHarbour To Uwe: alpha channel
Posts: 6984
Joined: Fri Oct 07, 2005 07:07 PM
To Uwe: alpha channel
Posted: Wed Aug 01, 2012 01:01 PM
Hello Uwe,
would you be so kind to explain me once again how to create an alpha channel bmp.
Maybe you can point out what I did wrong with these to bmps.

http://www.atzwanger-software.com/fw/bmpMetro.zip

Thanks in advance
Otto
Posts: 4043
Joined: Wed Dec 19, 2007 06:40 PM
Re: To Uwe: alpha channel
Posted: Wed Aug 01, 2012 01:32 PM
Hello Otto,
The PNG's have a Alphachannel, but they are NOT Transparent.
You can open them with Pixelformer,
next select a transparent Brush and fill the white Area.
I think GIMP includes a Function as well, to replace a defined Color with TRANSPARENT.
I will check it out.

my Tests :

Your Original :



Replaced the white Background with TRANSPARENT :



Best Regards
Uwe :-)
Since 1995 ( the first release of FW 1.9 )

i work with FW.

If you have any questions about special functions, maybe i can help.
Posts: 6984
Joined: Fri Oct 07, 2005 07:07 PM
Re: To Uwe: alpha channel
Posted: Wed Aug 01, 2012 01:39 PM

Hello Uwe,
Thank you very much.
Where do I find a transparent brush in pixelformer.
Thanks in advance
Otto

Posts: 4043
Joined: Wed Dec 19, 2007 06:40 PM
Re: To Uwe: alpha channel
Posted: Wed Aug 01, 2012 01:41 PM
Hello Otto,

select any Color, than move the Colorslider to the BOTTOM.
Transparent is used.



Best Regards
Uwe :-)
Since 1995 ( the first release of FW 1.9 )

i work with FW.

If you have any questions about special functions, maybe i can help.
Posts: 6984
Joined: Fri Oct 07, 2005 07:07 PM
Re: To Uwe: alpha channel
Posted: Wed Aug 01, 2012 02:08 PM

Hello Uwe,
thank you for your help. Now I have the bmps transparent.
Best regards,
Otto

Posts: 1096
Joined: Fri Oct 28, 2005 02:27 AM
Re: To Uwe: alpha channel
Posted: Thu Aug 02, 2012 01:57 AM

Some of Uwe's tutorials are listed at http://wiki.fivetechsoft.com/doku.php?id=graphics

FWH 11.08/FWH 19.12

BCC5.82/BCC7.3

xHarbour/Harbour

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