From 27b6dfcbea30c94ff65361883f61cf9bd3de2b9f Mon Sep 17 00:00:00 2001
From: goat <goatsdev@protonmail.com>
Date: Thu, 9 Jan 2025 21:58:23 +0100
Subject: [PATCH] don't allow window additions for multi-monitor windows

---
 Dalamud/Interface/Windowing/Window.cs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Dalamud/Interface/Windowing/Window.cs b/Dalamud/Interface/Windowing/Window.cs
index 6219de852..79bb63685 100644
--- a/Dalamud/Interface/Windowing/Window.cs
+++ b/Dalamud/Interface/Windowing/Window.cs
@@ -378,6 +378,16 @@ public abstract class Window
         {
             ImGuiNativeAdditions.igCustom_WindowSetInheritNoInputs(this.internalIsClickthrough);
 
+            // Not supported yet on non-main viewports
+            if ((this.internalIsPinned || this.internalIsClickthrough || this.internalAlpha.HasValue) &&
+                ImGui.GetWindowViewport().ID != ImGui.GetMainViewport().ID)
+            {
+                this.internalAlpha = null;
+                this.internalIsPinned = false;
+                this.internalIsClickthrough = false;
+                this.presetDirty = true;
+            }
+
             // Draw the actual window contents
             try
             {