wxWidgets

Please close the bug.
My last comment has nothing to do with this bug.

The bug is still there on WinXPSP2 with wxStaticBitmap and wxTreeCtrl
items, etc.

Please see this picture
<ftp://ftp.berlios.de/pub/blackfisk/logo_alpha.png>

In the background is a big blackfisk. That is the SVG-Version I created
with "Inkscape". The background is set to transparent (Inkscape display it
white).

In the right-top-corner you can see the exported PNG-file with the
transparent background (pink is transparent here because I setup the
viewing software that way). Each other SVG-viewing software (e.g. Opera)
display it correct with a transparent background.

Then I try to use the exported PNG as a icon in a wxStaticText and
"import" with this line.
wxwidgets:
wxBitmap(wxString::Format(_T("%s%s"), BF_GRAPHICDIR, _T("logo128.png")),
wxBITMAP_TYPE_PNG));

You can see the result in the right-middle in the picture. You see the
black background? Something is wrong here.

My workaround is to load the PNG-file in IrfanView (a picture-viewer on
Win32) and re-save it with setting the transparent colour explicite in the
saving-options.
Then it looks like the right-bottom picture.

What is wrong here in this chain? I am not sure but I think wx did
something different or wrong while loading a PNG then other PNG-viewers
does.
And I can say that storing transparency is handled different between
Inkscape and IrfanView.
________________
wxWdigets 2.9.x (SVN) build with MinGW as debug-dll on WinXPSP2
Code::Blocks as IDE

I fixed this bug:
https://sourceforge.net/tracker/index.php?func=detail&aid=1761598&group_id=9863&atid=309863

Thanks to maxinuruguay for submit this bug.

I want only to "update" this track and confirm what maxinuruguay have
already said. The problem with PNG alpha is present in win98/2000, not in
XP/Vista (don't know about MacOS and linux); the problem is present only
when use wxStaticBitmap (PNGs loaded in wxToolBar, or in wxMenu by
Menuitem->SetBitmap, or in wxListCtrl, works fine!).

Thanks to all wxDevs.