Cleanup.

examples/common/imgui/imgui.h

@@ -119,6 +119,20 @@ namespace ImGui
 			;
 	}
 
+	inline void PushEnabled(bool _enabled)
+	{
+		extern void PushItemFlag(int option, bool enabled);
+		PushItemFlag(1<<2 /*ImGuiItemFlags_Disabled*/, !_enabled);
+		PushStyleVar(ImGuiStyleVar_Alpha, ImGui::GetStyle().Alpha * (_enabled ? 1.0f : 0.5f) );
+	}
+
+	inline void PopEnabled()
+	{
+		extern void PopItemFlag();
+		PopItemFlag();
+		PopStyleVar();
+	}
+
 } // namespace ImGui
 
 #endif // IMGUI_H_HEADER_GUARD