From 600b8f60b48f8a038065753830e99e975412379e Mon Sep 17 00:00:00 2001
From: ocornut <omarcornut@gmail.com>
Date: Fri, 28 Aug 2020 20:20:28 +0200
Subject: [PATCH] Docking: Fixed crash in metrics.

---
 imgui.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/imgui.cpp b/imgui.cpp
index c0279359..68ebd424 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -15687,7 +15687,8 @@ void ImGui::ShowMetricsWindow(bool* p_open)
                 open = ImGui::TreeNode((void*)(intptr_t)node->ID, "%s 0x%04X%s: %s split (vis: '%s')", label, node->ID, node->IsVisible ? "" : " (hidden)", (node->SplitAxis == ImGuiAxis_X) ? "horizontal" : (node->SplitAxis == ImGuiAxis_Y) ? "vertical" : "n/a", node->VisibleWindow ? node->VisibleWindow->Name : "NULL");
             if (!is_alive) { PopStyleColor(); }
             if (is_active && ImGui::IsItemHovered())
-                GetForegroundDrawList(node->HostWindow ? node->HostWindow : node->VisibleWindow)->AddRect(node->Pos, node->Pos + node->Size, IM_COL32(255, 255, 0, 255));
+                if (ImGuiWindow* window = node->HostWindow ? node->HostWindow : node->VisibleWindow)
+                    GetForegroundDrawList(window)->AddRect(node->Pos, node->Pos + node->Size, IM_COL32(255, 255, 0, 255));
             if (open)
             {
                 IM_ASSERT(node->ChildNodes[0] == NULL || node->ChildNodes[0]->ParentNode == node);