Patch 8.1.1050
Problem:    Blank srceen when DirectWrite failed.
Solution:   Call redraw_later_clear() after recreating the Direct2D render
            target. (Ken Takata, closes #4172)
Files:      src/gui_dwrite.cpp


*** ../vim-8.1.1049/src/gui_dwrite.cpp  2019-03-21 20:50:08.868741864 +0100
--- src/gui_dwrite.cpp  2019-03-25 22:45:35.316700366 +0100
***************
*** 930,935 ****
--- 930,937 ----
      }
  }
  
+ extern "C" void redraw_later_clear(void);
+ 
      HRESULT
  DWriteContext::SetDrawingMode(DrawingMode mode)
  {
***************
*** 952,957 ****
--- 954,960 ----
                    hr = S_OK;
                    DiscardDeviceResources();
                    CreateDeviceResources();
+                   redraw_later_clear();
                }
                mDrawing = false;
            }
*** ../vim-8.1.1049/src/version.c       2019-03-25 22:21:21.557069182 +0100
--- src/version.c       2019-03-25 22:47:41.831650803 +0100
***************
*** 777,778 ****
--- 777,780 ----
  {   /* Add new patch number below this line */
+ /**/
+     1050,
  /**/

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