Fix crash when saving any module settings while module being disabled

src/modules/fancyzones/dll/dllmain.cpp

@@ -144,6 +144,7 @@ class FancyZonesModule : public PowertoyModuleIface
             }
             m_app->Destroy();
             m_app = nullptr;
+            m_settings->ResetCallback();
         }
     }
 

src/modules/fancyzones/lib/Settings.cpp

@@ -15,6 +15,7 @@ struct FancyZonesSettings : winrt::implements<FancyZonesSettings, IFancyZonesSet
     }
 
     IFACEMETHODIMP_(void) SetCallback(IFancyZonesCallback* callback) { m_callback = callback; }
+    IFACEMETHOD_(void, ResetCallback)() { m_callback = nullptr; }
     IFACEMETHODIMP_(bool) GetConfig(_Out_ PWSTR buffer, _Out_ int *buffer_sizeg) noexcept;
     IFACEMETHODIMP_(void) SetConfig(PCWSTR config) noexcept;
     IFACEMETHODIMP_(void) CallCustomAction(PCWSTR action) noexcept;

src/modules/fancyzones/lib/Settings.h

@@ -24,6 +24,7 @@ struct Settings
 interface __declspec(uuid("{BA4E77C4-6F44-4C5D-93D3-CBDE880495C2}")) IFancyZonesSettings : public IUnknown
 {
     IFACEMETHOD_(void, SetCallback)(interface IFancyZonesCallback* callback) = 0;
+    IFACEMETHOD_(void, ResetCallback)() = 0;
     IFACEMETHOD_(bool, GetConfig)(_Out_ PWSTR buffer, _Out_ int *buffer_size) = 0;
     IFACEMETHOD_(void, SetConfig)(PCWSTR serializedPowerToysSettingsJson) = 0;
     IFACEMETHOD_(void, CallCustomAction)(PCWSTR action) = 0;

src/modules/shortcut_guide/shortcut_guide.cpp

@@ -66,35 +66,45 @@ void OverlayWindow::set_config(const wchar_t* config)
 {
     try
     {
+        // save configuration
         PowerToysSettings::PowerToyValues _values =
             PowerToysSettings::PowerToyValues::from_json_string(config);
-        if (const auto press_delay_time = _values.get_int_value(pressTime.name))
+        _values.save_to_settings_file();
+        Trace::SettingsChanged(pressTime.value, overlayOpacity.value, theme.value);
+
+        // apply new settings if powertoy is enabled
+        if (_enabled)
         {
-            pressTime.value = *press_delay_time;
-            if (target_state)
+            if (const auto press_delay_time = _values.get_int_value(pressTime.name))
             {
-                target_state->set_delay(*press_delay_time);
+                pressTime.value = *press_delay_time;
+                if (target_state)
+                {
+                    target_state->set_delay(*press_delay_time);
+                }
             }
-        }
-        if (const auto overlay_opacity = _values.get_int_value(overlayOpacity.name))
-        {
-            overlayOpacity.value = *overlay_opacity;
-            if (winkey_popup)
+            if (const auto overlay_opacity = _values.get_int_value(overlayOpacity.name))
             {
-                winkey_popup->apply_overlay_opacity(((float)overlayOpacity.value) / 100.0f);
+                overlayOpacity.value = *overlay_opacity;
+                if (winkey_popup)
+                {
+                    winkey_popup->apply_overlay_opacity(((float)overlayOpacity.value) / 100.0f);
+                }
+            }
+            if (auto val = _values.get_string_value(theme.name))
+            {
+                theme.value = std::move(*val);
+                if (winkey_popup)
+                {
+                    winkey_popup->set_theme(theme.value);
+                }
             }
         }
-        if (auto val = _values.get_string_value(theme.name))
-        {
-            theme.value = std::move(*val);
-            winkey_popup->set_theme(theme.value);
-        }
-        _values.save_to_settings_file();
-        Trace::SettingsChanged(pressTime.value, overlayOpacity.value, theme.value);
     }
     catch (...)
     {
         // Improper JSON. TODO: handle the error.
+        return;
     }
 }