Windos Form Opacity control without change the opacity of his content

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Hi Friends
I want to control opacity of form. i can do it. but my problem is when i decrease opacity of form then opacity of content of form like button, picture box etc. are also decrease. and i want to decrease opacity of form only not his content's opacity. please help me.

Posted 13-Apr-11 2:50am

Antaru

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Sergey Alexandrovich Kryukov 14-Apr-11 13:06pm

Vote of 5 for a tricky question.
--SA

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-04-13T03:21:00

Unfortunately, it is not possible in pure .NET, to best of my knowledge.

In native Windows, there is a technique of "Layered windows".

See this: A non-rectangular top window with click-through shadow along the edge?[^], check out the Answer by mbue. I did not test this technique. I asked mbue about this possibility and see that there is no easy way to make it with available controls: you would need to re-create all using bitmaps, which does not sound realistic at all. Please see the reference about for explanation of technique and the summary of our discussion.

—SA

#realJSOP · Accepted Answer · 2011-04-13T05:33:00

Solution 2

You could create a standard form with the opacity, and then overlay it with another (modeless, borderless, and transparent background) form which has all of the desired controls on it. Of course, you'd have to manage all of the form interaction between the two yourself. It's a hassle - if I were you, and if you absolutely need that kind of functionality, I'd consider using WPF instead of WinForms.

Posted 13-Apr-11 5:33am

#realJSOP

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Antaru 14-Apr-11 4:52am

Thank you john

Sergey Alexandrovich Kryukov 14-Apr-11 15:48pm

John, it is not possible with WPF as well as with Forms because it is not possible in native Windows. One remote possibility is layered windows (which I never tried) would strongly defeat the purpose of the UI library and can be very difficult, more difficult with WPF, or just impossible.

Please see my Answer and references Answer by mbue.
--SA