From 04a0b10a15abc61c409d0073eb856fe75db3f6f2 Mon Sep 17 00:00:00 2001
From: Damien Elmes <gpg@ankiweb.net>
Date: Tue, 23 Sep 2025 19:50:19 +1000
Subject: [PATCH] Launcher now checks Windows version

https://forums.ankiweb.net/t/issue-with-installing-anki-launcher-into-custom-folder/66355
---
 qt/launcher/src/platform/mod.rs     |  3 +++
 qt/launcher/src/platform/windows.rs | 20 ++++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/qt/launcher/src/platform/mod.rs b/qt/launcher/src/platform/mod.rs
index 6a582f1aa..eec7634f1 100644
--- a/qt/launcher/src/platform/mod.rs
+++ b/qt/launcher/src/platform/mod.rs
@@ -134,5 +134,8 @@ pub fn ensure_os_supported() -> Result<()> {
     #[cfg(all(unix, not(target_os = "macos")))]
     unix::ensure_glibc_supported()?;
 
+    #[cfg(target_os = "windows")]
+    windows::ensure_windows_version_supported()?;
+
     Ok(())
 }
diff --git a/qt/launcher/src/platform/windows.rs b/qt/launcher/src/platform/windows.rs
index ebdff6261..d20c9a8b4 100644
--- a/qt/launcher/src/platform/windows.rs
+++ b/qt/launcher/src/platform/windows.rs
@@ -38,6 +38,26 @@ fn is_windows_10() -> bool {
     }
 }
 
+/// Ensures Windows 10 version 1809 or later
+pub fn ensure_windows_version_supported() -> Result<()> {
+    unsafe {
+        let mut info = OSVERSIONINFOW {
+            dwOSVersionInfoSize: std::mem::size_of::<OSVERSIONINFOW>() as u32,
+            ..Default::default()
+        };
+
+        if RtlGetVersion(&mut info).is_err() {
+            anyhow::bail!("Failed to get Windows version information");
+        }
+
+        if info.dwBuildNumber >= 17763 {
+            return Ok(());
+        }
+
+        anyhow::bail!("Windows 10 version 1809 or later is required.")
+    }
+}
+
 pub fn ensure_terminal_shown() -> Result<()> {
     unsafe {
         if !GetConsoleWindow().is_invalid() {