BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  On a background picture a picture with transparence          BorlandTalk.com Forum Index -> Delphi Graphics View previous topic :: View next topic   Author Message Diana Schulz Guest Posted: Fri May 04, 2007 3:13 pm    Post subject: On a background picture a picture with transparence Hi, the title already says everything about my problem. I have a Hintegrundbild in a TImage on which picture another to I would like to paint which should be painted, however, with transparence, thus it looks like in the example! Example: http://img222.imageshack.us/img222/4082/beispiel1nc3.jpg Thx Diana Back to top GrandmasterB Guest Posted: Sat May 05, 2007 12:56 am    Post subject: Re: On a background picture a picture with transparence "Diana Schulz" <rxoa0Xfa (AT) googlemail (DOT) com> wrote in message news:mn.22dd7d75e704878f.57524 (AT) googlemail (DOT) com... Quote: Hi, the title already says everything about my problem. I have a Hintegrundbild in a TImage on which picture another to I would like to paint which should be painted, however, with transparence, thus it looks like in the example! How you do this depends on the format of the picture you want to put onto the background. If it's a 32-bit bitmap with an alpha channel defined, you can use the alphablend() function of the Windows GDI. If you have a 'mask' color in the bitmap, you can use the TBitmap's Transparent functionality. 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