From 6e9cde8ac17ce01011d8889b7af39422c02f75da Mon Sep 17 00:00:00 2001
From: Calvin Rose <calsrose@gmail.com>
Date: Sun, 30 Apr 2023 10:36:42 -0500
Subject: [PATCH] Add feature check for windows version shell.c

Tried to get console working on windows 7 and below
---
 src/mainclient/shell.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/src/mainclient/shell.c b/src/mainclient/shell.c
index c1812d75..05c428e7 100644
--- a/src/mainclient/shell.c
+++ b/src/mainclient/shell.c
@@ -146,9 +146,13 @@ static void setup_console_output(void) {
     HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
     DWORD dwMode = 0;
     GetConsoleMode(hOut, &dwMode);
-    dwMode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+    if (IsWindows10OrGreater()) {
+        dwMode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+    }
     SetConsoleMode(hOut, dwMode);
-    SetConsoleOutputCP(65001);
+    if (IsValidCodePage(65001)) {
+        SetConsoleOutputCP(65001);
+    }
 }
 
 /* Ansi terminal raw mode */
@@ -160,8 +164,10 @@ static int rawmode(void) {
     dwMode &= ~ENABLE_LINE_INPUT;
     dwMode &= ~ENABLE_INSERT_MODE;
     dwMode &= ~ENABLE_ECHO_INPUT;
-    dwMode |= ENABLE_VIRTUAL_TERMINAL_INPUT;
-    dwMode &= ~ENABLE_PROCESSED_INPUT;
+    if (IsWindows10OrGreater()) {
+        dwMode |= ENABLE_VIRTUAL_TERMINAL_INPUT;
+        dwMode &= ~ENABLE_PROCESSED_INPUT;
+    }
     if (!SetConsoleMode(hOut, dwMode)) return 1;
     gbl_israwmode = 1;
     return 0;
@@ -176,8 +182,10 @@ static void norawmode(void) {
     dwMode |= ENABLE_LINE_INPUT;
     dwMode |= ENABLE_INSERT_MODE;
     dwMode |= ENABLE_ECHO_INPUT;
-    dwMode &= ~ENABLE_VIRTUAL_TERMINAL_INPUT;
-    dwMode |= ENABLE_PROCESSED_INPUT;
+    if (IsWindows10OrGreater()) {
+        dwMode &= ~ENABLE_VIRTUAL_TERMINAL_INPUT;
+        dwMode |= ENABLE_PROCESSED_INPUT;
+    }
     SetConsoleMode(hOut, dwMode);
     gbl_israwmode = 0;
 }