diff --git a/CMakeLists.txt b/CMakeLists.txt
index f84b551..4cf7662 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,7 +27,13 @@ endif()
 
 if(MSVC)
     add_compile_definitions(SDL_MAIN_HANDLED)
-    add_compile_options(/W4 /WX)
+    add_compile_options(/WX)
+    # replace existing /W to avoid warning
+    if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
+        string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+    else()
+        add_compile_options(/W4)
+    endif()
 else()
     add_compile_options(-Wall -Wextra -Wpedantic -Werror)
 endif()
diff --git a/example/color_node_editor.cpp b/example/color_node_editor.cpp
index af17151..549bd81 100644
--- a/example/color_node_editor.cpp
+++ b/example/color_node_editor.cpp
@@ -205,8 +205,7 @@ class ColorNodeEditor
         // These are driven by the user, so we place this code before rendering the nodes
         {
             const bool open_popup = ImGui::IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows) &&
-                                    ImNodes::IsEditorHovered() &&
-                                    ImGui::IsKeyReleased(ImGuiKey_A);
+                                    ImNodes::IsEditorHovered() && ImGui::IsKeyReleased(ImGuiKey_A);
 
             ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(8.f, 8.f));
             if (!ImGui::IsAnyItemHovered() && open_popup)
@@ -513,7 +512,7 @@ class ColorNodeEditor
                     const float label_width = ImGui::CalcTextSize("output").x;
                     ImGui::Indent(node_width - label_width);
                     ImGui::TextUnformatted("output");
-                    ImNodes::EndInputAttribute();
+                    ImNodes::EndOutputAttribute();
                 }
 
                 ImNodes::EndNode();
diff --git a/imnodes.cpp b/imnodes.cpp
index 7dde0f4..35a7546 100644
--- a/imnodes.cpp
+++ b/imnodes.cpp
@@ -1774,7 +1774,7 @@ static inline void CalcMiniMapLayout()
         const ImVec2 grid_content_size = editor.GridContentBounds.IsInverted()
                                              ? max_size
                                              : ImFloor(editor.GridContentBounds.GetSize());
-        const float grid_content_aspect_ratio = grid_content_size.x / grid_content_size.y;
+        const float  grid_content_aspect_ratio = grid_content_size.x / grid_content_size.y;
         mini_map_size = ImFloor(
             grid_content_aspect_ratio > max_size_aspect_ratio
                 ? ImVec2(max_size.x, max_size.x / grid_content_aspect_ratio)
@@ -2766,35 +2766,35 @@ struct ImNodesStyleVarInfo
 
 static const ImNodesStyleVarInfo GStyleVarInfo[] = {
     // ImNodesStyleVar_GridSpacing
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, GridSpacing)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, GridSpacing)},
     // ImNodesStyleVar_NodeCornerRounding
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, NodeCornerRounding)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, NodeCornerRounding)},
     // ImNodesStyleVar_NodePadding
-    {ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImNodesStyle, NodePadding)},
+    {ImGuiDataType_Float, 2, (ImU32)offsetof(ImNodesStyle, NodePadding)},
     // ImNodesStyleVar_NodeBorderThickness
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, NodeBorderThickness)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, NodeBorderThickness)},
     // ImNodesStyleVar_LinkThickness
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, LinkThickness)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, LinkThickness)},
     // ImNodesStyleVar_LinkLineSegmentsPerLength
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, LinkLineSegmentsPerLength)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, LinkLineSegmentsPerLength)},
     // ImNodesStyleVar_LinkHoverDistance
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, LinkHoverDistance)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, LinkHoverDistance)},
     // ImNodesStyleVar_PinCircleRadius
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, PinCircleRadius)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, PinCircleRadius)},
     // ImNodesStyleVar_PinQuadSideLength
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, PinQuadSideLength)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, PinQuadSideLength)},
     // ImNodesStyleVar_PinTriangleSideLength
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, PinTriangleSideLength)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, PinTriangleSideLength)},
     // ImNodesStyleVar_PinLineThickness
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, PinLineThickness)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, PinLineThickness)},
     // ImNodesStyleVar_PinHoverRadius
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, PinHoverRadius)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, PinHoverRadius)},
     // ImNodesStyleVar_PinOffset
-    {ImGuiDataType_Float, 1, (ImU32)IM_OFFSETOF(ImNodesStyle, PinOffset)},
+    {ImGuiDataType_Float, 1, (ImU32)offsetof(ImNodesStyle, PinOffset)},
     // ImNodesStyleVar_MiniMapPadding
-    {ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImNodesStyle, MiniMapPadding)},
+    {ImGuiDataType_Float, 2, (ImU32)offsetof(ImNodesStyle, MiniMapPadding)},
     // ImNodesStyleVar_MiniMapOffset
-    {ImGuiDataType_Float, 2, (ImU32)IM_OFFSETOF(ImNodesStyle, MiniMapOffset)},
+    {ImGuiDataType_Float, 2, (ImU32)offsetof(ImNodesStyle, MiniMapOffset)},
 };
 
 static const ImNodesStyleVarInfo* GetStyleVarInfo(ImNodesStyleVar idx)
diff --git a/imnodes_internal.h b/imnodes_internal.h
index f1c44e1..5aa11aa 100644
--- a/imnodes_internal.h
+++ b/imnodes_internal.h
@@ -285,10 +285,11 @@ struct ImNodesEditorContext
 
     ImNodesEditorContext()
         : Nodes(), Pins(), Links(), ZoomScale(1.f), Panning(0.f, 0.f), SelectedNodeIndices(),
-          SelectedLinkIndices(), SelectedNodeOffsets(), PrimaryNodeOffset(0.f, 0.f),
-          ClickInteraction(), MiniMapEnabled(false), MiniMapSizeFraction(0.0f),
-          MiniMapNodeHoveringCallback(NULL), MiniMapNodeHoveringCallbackUserData(NULL),
-          MiniMapScaling(0.0f) {}
+           SelectedLinkIndices(), SelectedNodeOffsets(), PrimaryNodeOffset(0.f, 0.f), ClickInteraction(),
+          MiniMapEnabled(false), MiniMapSizeFraction(0.0f), MiniMapNodeHoveringCallback(NULL),
+          MiniMapNodeHoveringCallbackUserData(NULL), MiniMapScaling(0.0f)
+    {
+    }
 };
 
 struct ImNodesContext