From 099de4ecab8fd94baf74c06530982653fc46ad16 Mon Sep 17 00:00:00 2001
From: Stefan Csomor <csomor@advancedconcepts.ch>
Date: Sun, 10 Mar 2019 09:54:08 +0100
Subject: [PATCH] Guarding call to wxOSXDrawNSImage with a valid m_cgContext

Fixes #18356
---
 src/osx/carbon/graphics.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/osx/carbon/graphics.cpp b/src/osx/carbon/graphics.cpp
index 035190deb4..0fe428cd20 100644
--- a/src/osx/carbon/graphics.cpp
+++ b/src/osx/carbon/graphics.cpp
@@ -2213,6 +2213,7 @@ void wxMacCoreGraphicsContext::Rotate( wxDouble angle )
 void wxMacCoreGraphicsContext::DrawBitmap( const wxBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h )
 {
 #if wxOSX_USE_COCOA
+    if (EnsureIsValid())
     {
         CGRect r = CGRectMake( (CGFloat) x , (CGFloat) y , (CGFloat) w , (CGFloat) h );
         wxOSXDrawNSImage( m_cgContext, &r, bmp.GetImage());