[Git][wxwidgets/wxwidgets][master] OSX transparent controls background (#26090)

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Vadim Zeitlin (@_VZ_)

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Jan 11, 2026, 4:09:59 AMJan 11
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Vadim Zeitlin pushed to branch master at wxWidgets / wxWidgets

Commits:

  • 8ada351a
    by Stefan Csomor at 2026-01-11T09:53:25+01:00 
    OSX transparent controls background (#26090)

set transparent background on certain native controls, otherwise the background color is incorrect, see #26088 , also visible in nested groupboxes

using generic approach as per Vadim’s suggestion

2 changed files:

Changes:

  • src/osx/checkbox_osx.cpp
    ... ... @@ -34,8 +34,8 @@ bool wxCheckBox::Create(wxWindow *parent,
    34 34 
         m_labelOrig = m_label = label ;
    35 35
    36 36 
         WXValidateStyle( &style );
    37 
    -    SetPeer(wxWidgetImpl::CreateCheckBox( this, parent, id, label, pos, size, style, GetExtraStyle() )) ;
    38 37
    38 
    +    SetPeer(wxWidgetImpl::CreateCheckBox( this, parent, id, label, pos, size, style, GetExtraStyle() )) ;
    39 39 
         MacPostControlCreate(pos, size) ;
    40 40
    41 41 
         return true;

  • src/osx/window_osx.cpp
    ... ... @@ -399,6 +399,8 @@ bool wxWindowMac::Create(wxWindowMac *parent,
    399 399
    400 400 
         m_hScrollBarAlwaysShown =
    401 401 
         m_vScrollBarAlwaysShown = HasFlag(wxALWAYS_SHOW_SB);
    402 
    +    if ( HasTransparentBackground())
    403 
    +        m_backgroundStyle = wxBG_STYLE_TRANSPARENT;
    402 404
    403 405 
         if ( m_peer != kOSXNoWidgetImpl )
    404 406 
         {

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