From: Bram Moolenaar <Bram@vim.org>
Date: Fri, 15 Nov 2019 21:41:14 +0000 (+0100)
Subject: patch 8.1.2301: MS-Windows GUI: drawing error when background color changes
X-Git-Tag: v8.1.2301
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ab85ca4e6a40b2998db7b00896505486f5c16b41;p=vim

patch 8.1.2301: MS-Windows GUI: drawing error when background color changes

Problem:    MS-Windows GUI: drawing error when background color changes.
Solution:   Implement gui_mch_new_colors(). (Simon Sadler)
---

diff --git a/src/gui_w32.c b/src/gui_w32.c
index 02d2e096b..3dbbc5eec 100644
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -325,7 +325,7 @@ static
 #endif
 HWND			s_hwnd = NULL;
 static HDC		s_hdc = NULL;
-static HBRUSH	s_brush = NULL;
+static HBRUSH		s_brush = NULL;
 
 #ifdef FEAT_TOOLBAR
 static HWND		s_toolbarhwnd = NULL;
@@ -1282,7 +1282,18 @@ vim_WindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
     void
 gui_mch_new_colors(void)
 {
-    /* nothing to do? */
+    HBRUSH prevBrush;
+
+    s_brush = CreateSolidBrush(gui.back_pixel);
+#ifdef SetClassLongPtr
+    prevBrush = (HBRUSH)SetClassLongPtr(
+				s_hwnd, GCLP_HBRBACKGROUND, (LONG_PTR)s_brush);
+#else
+    prevBrush = (HBRUSH)SetClassLong(
+				   s_hwnd, GCL_HBRBACKGROUND, (long_u)s_brush);
+#endif
+    InvalidateRect(s_hwnd, NULL, TRUE);
+    DeleteObject(prevBrush);
 }
 
 /*
diff --git a/src/version.c b/src/version.c
index 13d861666..b91643461 100644
--- a/src/version.c
+++ b/src/version.c
@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    2301,
 /**/
     2300,
 /**/