[Git][wxwidgets/wxwidgets][master] 2 commits: Make background of more controls transparent in wxOSX

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Vadim Zeitlin (@_VZ_)

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Jan 15, 2026, 12:55:14 PMJan 15
to wx-commi...@googlegroups.com

Vadim Zeitlin pushed to branch master at wxWidgets / wxWidgets

Commits:

  • 5d41b241
    by Stefan Csomor at 2026-01-15T18:24:36+01:00 
    Make background of more controls transparent in wxOSX

wxRadioBox, wxRadioButton and wxSlider should also have transparent
background.

Closes #26092.
  • 2f89cd2d
    by Stefan Csomor at 2026-01-15T18:25:56+01:00 
    Ensure that application is always shown after launch under macOS

Post dummy event from applicationDidFinishLaunching, otherwise on some
macOS versions apps might not boot properly if no other events are
happening.

Closes #26095.

Closes #26098.

4 changed files:

Changes:

  • include/wx/osx/radiobox.h
    ... ... @@ -73,6 +73,8 @@ public:
    73 73 
         virtual wxString GetString(unsigned int item) const override;
    74 74 
         virtual void SetString(unsigned int item, const wxString& label) override;
    75 75
    76 
    +    virtual bool HasTransparentBackground() override { return true; }
    77 
    +
    76 78 
         // protect native font of box
    77 79 
         virtual bool SetFont( const wxFont &font ) override;
    78 80 
     // Other external functions

  • include/wx/osx/radiobut.h
    ... ... @@ -37,6 +37,8 @@ public:
    37 37 
         virtual void SetValue(bool val) override;
    38 38 
         virtual bool GetValue() const override;
    39 39
    40 
    +    virtual bool HasTransparentBackground() override { return true; }
    41 
    +
    40 42 
         // implementation
    41 43
    42 44 
         void Command(wxCommandEvent& event) override;

  • include/wx/osx/slider.h
    ... ... @@ -68,6 +68,8 @@ public:
    68 68 
         int GetThumbLength() const override;
    69 69 
         void SetTick(int tickPos) override;
    70 70
    71 
    +    virtual bool HasTransparentBackground() override { return true; }
    72 
    +
    71 73 
         void Command(wxCommandEvent& event) override;
    72 74 
         // osx specific event handling common for all osx-ports
    73 75

  • src/osx/cocoa/utils.mm
    ... ... @@ -76,6 +76,19 @@ void wxBell()
    76 76 
     - (void)applicationDidFinishLaunching:(NSNotification *)notification
    77 77 
     {
    78 78 
         wxUnusedVar(notification);
    79 
    +
    80 
    +    // we must make sure, that there still is an event on the event queue
    81 
    +    // otherwise stopping the event queue will not advance, because quitting only
    82 
    +    // gets processed AFTER the handling of the current event
    83 
    +    // see https://developer.apple.com/documentation/appkit/nsapplication/stop(_:)?language=objc
    84 
    +    NSEvent *event = [NSEvent otherEventWithType:NSApplicationDefined
    85 
    +                                location:NSMakePoint(0.0, 0.0)
    86 
    +                           modifierFlags:0
    87 
    +                               timestamp:0
    88 
    +                            windowNumber:0
    89 
    +                                 context:nil
    90 
    +                                 subtype:0 data1:0 data2:0];
    91 
    +    [NSApp postEvent:event atStart:FALSE];
    79 92 
         [NSApp stop:nil];
    80 93 
         wxTheApp->OSXOnDidFinishLaunching();
    81 94

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