From 46b4ce12e9d3441938636e81cb8b5e7e59d20eba Mon Sep 17 00:00:00 2001
From: rich2014 <rich2014.git@outlook.com>
Date: Sun, 2 Jun 2024 23:47:36 +0800
Subject: [PATCH] LCL: fix the issue #19685 that painting TGraphicsControl on
 Designer Overlay DC

1. the issue only occurs at design time
2. the issue is that Control should not be painted on Designer Overlay Layer
---
 lcl/include/wincontrol.inc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lcl/include/wincontrol.inc b/lcl/include/wincontrol.inc
index 54bbbf51c9..345c1e52e0 100644
--- a/lcl/include/wincontrol.inc
+++ b/lcl/include/wincontrol.inc
@@ -4904,7 +4904,8 @@ begin
 
   //DebugLn('[TWinControl.PaintControls] ',Name,':',ClassName,'  DC=',DbgS(DC,8));
   if (csDestroying in ComponentState)
-  or ((DC=0) and (not HandleAllocated)) then
+  or ((DC=0) and (not HandleAllocated))
+  or WidgetSet.IsDesignerDC(self.Handle,DC) then
     exit;
 
   {$IFDEF VerboseDsgnPaintMsg}