Use transparency only on the Frame

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Intoxx
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Use transparency only on the Frame

Post by Intoxx » Sun Sep 01, 2013 5:45 pm

Hello, sorry for my English, i use frame (class MainFrame()) in my Program and i use this code :

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    wxColour *blue = new wxColour(2, 28, 45);
    SetBackgroundColour(*blue);

    wxButton *button = new wxButton(this, wxID_ANY, _T("Bouton"));
    wxButton *buttonB = new wxButton(this, wxID_ANY, _T("Bouton2"));
    wxButton *buttonC = new wxButton(this, wxID_ANY, _T("Bouton3"));
    buttonB->Move(150, 0);
    buttonC->Move(100, 55);

    SetTransparent(210);

     
    button->SetTransparent(255);
    buttonB->SetTransparent(255);
    buttonC->SetTransparent(255);
The transparency of the frame is good BUT the three buttons (button, buttonB, buttonC) are also (and i don't want.)

I don't find solution, thank's for your HELP !
Intoxx

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doublemax
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Re: Use transparency only on the Frame

Post by doublemax » Sun Sep 01, 2013 6:27 pm

Sorry, not possible.
Use the source, Luke!

Intoxx
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Re: Use transparency only on the Frame

Post by Intoxx » Sun Sep 01, 2013 7:10 pm

Really no alternative? To your knowledge is there another library allows?

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doublemax
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Re: Use transparency only on the Frame

Post by doublemax » Sun Sep 01, 2013 7:38 pm

Really no alternative?
I had only one idea how to do this, but it's tricky and i'm not even sure it would work: Have two different wxFrames. One with the semitransparent background and on top of that, another "shaped" frame where only the parts where the buttons are, are visible. You'd have synchronize their relative position yourself.
To your knowledge is there another library allows?
Sorry, no idea.
Use the source, Luke!

Intoxx
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Re: Use transparency only on the Frame

Post by Intoxx » Sun Sep 01, 2013 8:01 pm

I will try, thank's, this is good idea but a frame "Shaped" can have a transparent background? (RGB) I mean, is that the second frame that I would put above may have several controls while having an invisible background? (I look at the examples on the web now).

Thank's for your help men

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doublemax
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Re: Use transparency only on the Frame

Post by doublemax » Sun Sep 01, 2013 8:07 pm

With a "shaped" frame (check the "shaped" sample), you can turn turn individual pixels on or off (1-bit mask). You'd have to create a mask where only the areas covered by the buttons are "active", the rest would be invisible. These would then "hover" over the semi-transparent background.

But even with this tricks it's not possible to have individual alpha values for each pixel.
Use the source, Luke!

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