From 228bbbf93a96b108562808bf36cacf22cabe4c1e Mon Sep 17 00:00:00 2001
From: Paul Cornett <paulcor@users.noreply.github.com>
Date: Wed, 30 Mar 2022 09:04:19 -0700
Subject: [PATCH] Create generic wxCaret backing bitmap with correct scale

Fixes degraded appearance of scaled window contents under caret
---
 src/generic/caret.cpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/generic/caret.cpp b/src/generic/caret.cpp
index 98dc682ca4..093ce01094 100644
--- a/src/generic/caret.cpp
+++ b/src/generic/caret.cpp
@@ -99,8 +99,6 @@ void wxCaret::InitGeneric()
     m_blinkedOut = true;
     m_xOld =
     m_yOld = -1;
-    if (!m_overlay.IsNative() && m_width && m_height)
-        m_bmpUnderCaret.Create(m_width, m_height);
 }
 
 wxCaret::~wxCaret()
@@ -176,8 +174,6 @@ void wxCaret::DoSize()
     {
         // Change bitmap size
         m_bmpUnderCaret.UnRef();
-        if (m_width && m_height)
-            m_bmpUnderCaret.Create(m_width, m_height);
     }
 
     if (countVisible > 0)
@@ -254,6 +250,8 @@ void wxCaret::Refresh()
     {
         if ( m_xOld == -1 && m_yOld == -1 )
         {
+            if (!m_bmpUnderCaret.IsOk())
+                m_bmpUnderCaret.Create(m_width, m_height, dcWin);
             wxMemoryDC dcMem(m_bmpUnderCaret);
             // save the part we're going to overdraw
             dcMem.Blit(0, 0, m_width, m_height,