SDL: Define `TOUCHEVENTF_PEN` if not defined

SDL Commits
1 
From 8f991d75769af028455d08fb0126eefdaa7e793e Mon Sep 17 00:00:00 2001
From: Susko3 <[EMAIL REDACTED]>
Date: Sun, 17 Jul 2022 16:54:07 +0200
Subject: [PATCH] Define `TOUCHEVENTF_PEN` if not defined

---
 src/video/windows/SDL_windowsevents.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/video/windows/SDL_windowsevents.c b/src/video/windows/SDL_windowsevents.c
index 9691b7aa21fe..8112610eeb1b 100644
--- a/src/video/windows/SDL_windowsevents.c
+++ b/src/video/windows/SDL_windowsevents.c
@@ -99,6 +99,9 @@
 #ifndef WM_GETDPISCALEDSIZE
 #define WM_GETDPISCALEDSIZE 0x02E4
 #endif
+#ifndef TOUCHEVENTF_PEN
+#define TOUCHEVENTF_PEN 0x0040
+#endif
 
 #ifndef IS_HIGH_SURROGATE
 #define IS_HIGH_SURROGATE(x)   (((x) >= 0xd800) && ((x) <= 0xdbff))