From 84cd298084fa620890dfdb65b0650612fa95e7f1 Mon Sep 17 00:00:00 2001
From: Laszlo Agocs <laszlo.agocs@qt.io>
Date: Fri, 20 Sep 2024 12:10:29 +0200
Subject: [PATCH] rhi: d3d: Gracefully handle EnumOutputs failures

Fixes: QTBUG-129147
Pick-to: 6.7 6.5
Change-Id: Idec2678135ae4622537bece35c4253d933655b10
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
(cherry picked from commit d36dde37401fa5d56c4451059e8b8ec2bc06419d)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/gui/rhi/qrhid3dhelpers.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/gui/rhi/qrhid3dhelpers.cpp b/src/gui/rhi/qrhid3dhelpers.cpp
index 216c358cbe0..920446fbd9b 100644
--- a/src/gui/rhi/qrhid3dhelpers.cpp
+++ b/src/gui/rhi/qrhid3dhelpers.cpp
@@ -18,6 +18,8 @@ bool output6ForWindow(QWindow *w, IDXGIAdapter1 *adapter, IDXGIOutput6 **result)
     IDXGIOutput *currentOutput = nullptr;
     IDXGIOutput *output = nullptr;
     for (UINT i = 0; adapter->EnumOutputs(i, &output) != DXGI_ERROR_NOT_FOUND; ++i) {
+        if (!output)
+            continue;
         DXGI_OUTPUT_DESC desc;
         output->GetDesc(&desc);
         const RECT r = desc.DesktopCoordinates;