diff --git a/imgui.h b/imgui.h
index 5c426593..8af77567 100644
--- a/imgui.h
+++ b/imgui.h
@@ -277,7 +277,7 @@ namespace ImGui
     // Widgets: Main
     IMGUI_API bool          Button(const char* label, const ImVec2& size = ImVec2(0,0));            // button
     IMGUI_API bool          SmallButton(const char* label);                                         // button with FramePadding=(0,0) to easily embed within text
-    IMGUI_API bool          InvisibleButton(const char* str_id, const ImVec2& size);
+    IMGUI_API bool          InvisibleButton(const char* str_id, const ImVec2& size);                // button behavior without the visuals, useful to build custom behaviors using the public api (along with IsItemActive, IsItemHovered, etc.)
     IMGUI_API void          Image(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0 = ImVec2(0,0), const ImVec2& uv1 = ImVec2(1,1), const ImVec4& tint_col = ImVec4(1,1,1,1), const ImVec4& border_col = ImVec4(0,0,0,0));
     IMGUI_API bool          ImageButton(ImTextureID user_texture_id, const ImVec2& size, const ImVec2& uv0 = ImVec2(0,0),  const ImVec2& uv1 = ImVec2(1,1), int frame_padding = -1, const ImVec4& bg_col = ImVec4(0,0,0,0), const ImVec4& tint_col = ImVec4(1,1,1,1));    // <0 frame_padding uses default frame padding settings. 0 for no padding
     IMGUI_API bool          Checkbox(const char* label, bool* v);