commit 3dd174abbf2bf1bb4e42aa21ff78fb9b4f8b4679
author Bram Moolenaar <Bram@vim.org> Mon Mar 25 22:48:18 2019 +0100
committer Bram Moolenaar <Bram@vim.org> Mon Mar 25 22:48:18 2019 +0100
tree c37111919e642ff0a235a93f14591f4028065c30
parent a84a3dd6635fcd2e07f510cba6a999585dcc381a

patch 8.1.1050: blank srceen when DirectWrite failed

Problem:    Blank srceen when DirectWrite failed.
Solution:   Call redraw_later_clear() after recreating the Direct2D render
            target. (Ken Takata, closes #4172)

src/gui_dwrite.cpp

diff --git a/src/gui_dwrite.cpp b/src/gui_dwrite.cpp
index 4a24a03..3c477d0 100644
--- a/src/gui_dwrite.cpp
+++ b/src/gui_dwrite.cpp
@@ -930,6 +930,8 @@
     }
 }
 
+extern "C" void redraw_later_clear(void);
+
     HRESULT
 DWriteContext::SetDrawingMode(DrawingMode mode)
 {
@@ -952,6 +954,7 @@
 		    hr = S_OK;
 		    DiscardDeviceResources();
 		    CreateDeviceResources();
+		    redraw_later_clear();
 		}
 		mDrawing = false;
 	    }

src/version.c

diff --git a/src/version.c b/src/version.c
index f0da22a..f449642 100644
--- a/src/version.c
+++ b/src/version.c
@@ -776,6 +776,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1050,
+/**/
     1049,
 /**/
     1048,