From 0a9a72cbaa7a063d4efbef7175f0808cf674b059 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robin=20Lind=C3=A9n?= <dev@robinlinden.eu>
Date: Tue, 9 Feb 2021 14:18:29 +0100
Subject: [PATCH] Workaround Windows.h breaking the Color::RGB function (#70)

wingdi.h (included via Windows.h) defines an RGB macro that breaks
things. If a user really wants that macro in the same file as FTXUI they
can move the Windows.h include to after the inclusion of FTXUI's
headers.
---
 include/ftxui/screen/color.hpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/ftxui/screen/color.hpp b/include/ftxui/screen/color.hpp
index 84bd936..6bb0c19 100644
--- a/include/ftxui/screen/color.hpp
+++ b/include/ftxui/screen/color.hpp
@@ -4,6 +4,12 @@
 #include <cstdint>
 #include <string>
 
+#ifdef RGB
+// Workaround for wingdi.h (via Windows.h) defining macros that break things.
+// https://docs.microsoft.com/en-us/windows/win32/api/wingdi/nf-wingdi-rgb
+#undef RGB
+#endif
+
 namespace ftxui {
 
 /// @brief A class representing terminal colors.