From: Toni Wilen <twilen@winuae.net>
Date: Sun, 26 Oct 2025 14:33:20 +0000 (+0200)
Subject: Reset display if screen mode changes while GUI is open in D3D11 fullscreen mode.
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=a99ac5bc492d7c23d7403304c0e000fd7e87117b;p=francis%2Fwinuae.git

Reset display if screen mode changes while GUI is open in D3D11 fullscreen mode.
---

diff --git a/od-win32/direct3d11.cpp b/od-win32/direct3d11.cpp
index 0f3e8e17..445f35da 100644
--- a/od-win32/direct3d11.cpp
+++ b/od-win32/direct3d11.cpp
@@ -416,8 +416,9 @@ D3DGETBLOBPART pD3DGetBlobPart;
 static int isfs(struct d3d11struct *d3d)
 {
 	int fs = isfullscreen();
-	if (fs > 0 && d3d->guimode)
+	if (fs > 0 && d3d->guimode) {
 		return -1;
+	}
 	return fs;
 }
 
@@ -5270,8 +5271,16 @@ static void xD3D11_guimode(int monid, int guion)
 
 	d3d->reloadshaders = true;
 
-	if (isfullscreen() <= 0)
+	if (isfullscreen() <= 0) {
+		if (!guion && d3d->guimode) {
+			// GUI mode active but not fullscreen? Reset display.
+			xD3D11_free(d3d->num, true);
+			WIN32GFX_DisplayChangeRequested(1);
+		}
+		d3d->guimode = 0;
+		d3d->delayedfs = 0;
 		return;
+	}
 	
 	write_log(_T("fs guimode %d\n"), guion);
 	d3d->guimode = guion;