[PATCH 1/3] win32u: Only update the window GL drawable when making one current.

[Rémi Bernon]

From: Rémi Bernon

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58448
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58459
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58488
---
 dlls/win32u/opengl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/win32u/opengl.c b/dlls/win32u/opengl.c
index f27143f3357..5ac9fd72147 100644
--- a/dlls/win32u/opengl.c
+++ b/dlls/win32u/opengl.c
@@ -1152,7 +1152,7 @@ static BOOL context_set_drawables( struct wgl_context *context, void *private, H
             if (old_read) opengl_drawable_release( old_read );

/* update the current window drawable to the last used draw surface */
-            if ((hwnd = NtUserWindowFromDC( draw_hdc ))) set_window_opengl_drawable( hwnd, new_draw );
+            if (new_draw && (hwnd = NtUserWindowFromDC( draw_hdc ))) set_window_opengl_drawable( hwnd, new_draw );
         }
     }