From cd5838fc7fe3995563257c3f4c1b8436a5ae4ec1 Mon Sep 17 00:00:00 2001
From: Luminyx <27lumi@protonmail.com>
Date: Wed, 18 Feb 2026 21:30:45 -0500
Subject: [PATCH] Windows: Don't re-attach stdio when piping output (#1812)

---
 src/main.cpp | 32 +++++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 11 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index 9355465e..df2b57fb 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -167,18 +167,28 @@ void UnitTests()
 bool isConsoleConnected = false;
 void requireConsole()
 {
-	#if BOOST_OS_WINDOWS
-	if (isConsoleConnected)
-		return;
+    #if BOOST_OS_WINDOWS
+    if (isConsoleConnected)
+        return;
 
-	if (AttachConsole(ATTACH_PARENT_PROCESS) != FALSE)
-	{
-		freopen("CONIN$", "r", stdin);
-		freopen("CONOUT$", "w", stdout);
-		freopen("CONOUT$", "w", stderr);
-		isConsoleConnected = true;
-	}
-	#endif
+    HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
+    DWORD dwFileType = GetFileType(hOut);
+
+    if (dwFileType == FILE_TYPE_UNKNOWN || dwFileType == FILE_TYPE_CHAR)
+    {
+        if (AttachConsole(ATTACH_PARENT_PROCESS) != FALSE)
+        {
+            freopen("CONOUT$", "w", stdout);
+            freopen("CONOUT$", "w", stderr);
+            freopen("CONIN$", "r", stdin);
+            isConsoleConnected = true;
+        }
+    }
+    else
+    {
+        isConsoleConnected = true; 
+    }
+    #endif
 }
 
 void HandlePostUpdate()