From b73fd0760ace3c057fa24a7517815fcab5e49581 Mon Sep 17 00:00:00 2001
From: Johann Muszynski <johann.muszynski@gmail.com>
Date: Mon, 23 Dec 2019 12:47:12 +0200
Subject: [PATCH] Add check for minimum compatible ImGui version

---
 imnodes.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/imnodes.cpp b/imnodes.cpp
index d35af43..cbffe65 100755
--- a/imnodes.cpp
+++ b/imnodes.cpp
@@ -13,6 +13,13 @@
 #define IMGUI_DEFINE_MATH_OPERATORS
 #include "imgui_internal.h"
 
+// Check minimum ImGui version
+#define MINIMUM_COMPATIBLE_IMGUI_VERSION 16401
+#if IMGUI_VERSION_NUM < MINIMUM_COMPATIBLE_IMGUI_VERSION
+#error                                                                         \
+    "Minimum ImGui version requirement not met -- please use a newer version!"
+#endif
+
 #include <assert.h>
 #include <new>
 #include <stdint.h>