fix(windows): preserve VT input during mouse refresh (#4257)

refs #4251

1 files changed, 14 insertions, 0 deletions

diff --git a/src/platform/windows.rs b/src/platform/windows.rs
index 9742b52c..9e39a715 100644
--- a/src/platform/windows.rs
+++ b/src/platform/windows.rs
@@ -16,6 +16,20 @@ use std::{
 mod clipboard_image;
 mod config_backup;
 
+pub(crate) fn windows_virtual_terminal_input_active() -> bool {
+    use windows_sys::Win32::Foundation::INVALID_HANDLE_VALUE;
+    use windows_sys::Win32::System::Console::{
+        GetConsoleMode, GetStdHandle, ENABLE_VIRTUAL_TERMINAL_INPUT, STD_INPUT_HANDLE,
+    };
+
+    let handle = unsafe { GetStdHandle(STD_INPUT_HANDLE) };
+    if handle.is_null() || handle == INVALID_HANDLE_VALUE {
+        return false;
+    }
+    let mut mode = 0;
+    (unsafe { GetConsoleMode(handle, &mut mode) } != 0) && mode & ENABLE_VIRTUAL_TERMINAL_INPUT != 0
+}
+
 pub(crate) fn classify_child_exit(status: &portable_pty::ExitStatus) -> super::ChildExitReason {
     // STATUS_CONTROL_C_EXIT is reported without a Unix signal by portable-pty.
     if status.exit_code() == 0xC000013A {