From aebd261ded041eab0a397c4a77786b8c1e36dbc7 Mon Sep 17 00:00:00 2001
From: univrsal <uni@vrsal.de>
Date: Tue, 4 Jan 2022 12:18:58 +0100
Subject: [PATCH] UI: Disable WA_PaintOnScreen for projectors

Removing this attribute fixes #3582 and allows projector windows to be resized
under KDE.
---
 UI/window-projector.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/UI/window-projector.cpp b/UI/window-projector.cpp
index 1f09e0cfd..7eb04e011 100644
--- a/UI/window-projector.cpp
+++ b/UI/window-projector.cpp
@@ -30,6 +30,11 @@ OBSProjector::OBSProjector(QWidget *widget, obs_source_t *source_, int monitor,
 	if (isAlwaysOnTop)
 		setWindowFlags(Qt::WindowStaysOnTopHint);
 
+#if defined(__linux__) || defined(__FreeBSD__) || defined(__DragonFly__)
+	// Prevents resizing of projector windows
+	setAttribute(Qt::WA_PaintOnScreen, false);
+#endif
+
 	type = type_;
 #ifdef __APPLE__
 	setWindowIcon(