1 files changed, 5 insertions, 0 deletions

diff --git a/st.c b/st.c
index 524a95c..4e6d805 100644
--- a/st.c
+++ b/st.c
@@ -1063,6 +1063,11 @@ tsetdirtattr(int attr)
 	}
 }
 
+int tisaltscr(void)
+{
+	return IS_SET(MODE_ALTSCREEN);
+}
+
 void
 tfulldirt(void)
 {