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GUI/Field: Fix crash in color picker init (#2220) 

wxButton->GetBitmap() may return an invalid wxBitmap.
Guard against this.
This commit is contained in:
mia 2023-09-25 17:38:13 +02:00 committed by Lane.Wei
parent 2bbec00080
commit f8c718fd1f
1 changed files with 2 additions and 0 deletions
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2
src/slic3r/GUI/Field.cpp
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@ -1585,6 +1585,8 @@ void ColourPicker::set_undef_value(wxColourPickerCtrl* field)
field->SetColour(wxTransparentColour);
wxButton* btn = dynamic_cast<wxButton*>(field->GetPickerCtrl());
if (!btn->GetBitmap().IsOk()) return;
wxImage image(btn->GetBitmap().GetSize());
image.InitAlpha();
memset(image.GetAlpha(), 0, image.GetWidth() * image.GetHeight());