Settings Tab: Fix for https://dev.prusa3d.com/browse/SPE-1229

src/slic3r/GUI/Tab.cpp

@@ -3481,6 +3481,28 @@ void Tab::activate_selected_page(std::function<void()> throw_if_canceled)
     toggle_options();
 }
 
+#ifdef WIN32
+// Override the wxCheckForInterrupt to process inperruptions just from key or mouse
+// and to avoid an unwanted early call of CallAfter()
+static bool CheckForInterrupt(wxWindow* wnd)
+{
+    wxCHECK(wnd, false);
+
+    MSG msg;
+    while (::PeekMessage(&msg, ((HWND)((wnd)->GetHWND())), WM_KEYFIRST, WM_KEYLAST, PM_REMOVE))
+    {
+        ::TranslateMessage(&msg);
+        ::DispatchMessage(&msg);
+    }
+    while (::PeekMessage(&msg, ((HWND)((wnd)->GetHWND())), WM_MOUSEFIRST, WM_MOUSELAST, PM_REMOVE))
+    {
+        ::TranslateMessage(&msg);
+        ::DispatchMessage(&msg);
+    }
+    return true;
+}
+#endif //WIN32
+
 bool Tab::tree_sel_change_delayed()
 {
     // There is a bug related to Ubuntu overlay scrollbars, see https://github.com/prusa3d/PrusaSlicer/issues/898 and https://github.com/prusa3d/PrusaSlicer/issues/952.
@@ -3517,7 +3539,7 @@ bool Tab::tree_sel_change_delayed()
 
     auto throw_if_canceled = std::function<void()>([this](){
 #ifdef WIN32
-            wxCheckForInterrupt(m_treectrl);
+            CheckForInterrupt(m_treectrl);
             if (m_page_switch_planned)
                 throw UIBuildCanceled();
 #else // WIN32