diff --git a/c/xlib/display.c b/c/xlib/display.c
index a150e48..e84dd30 100644
--- a/c/xlib/display.c
+++ b/c/xlib/display.c
@@ -233,6 +233,13 @@ s48_value scx_List_Pixmap_Formats (s48_value Xdisplay) {
   return ret;
 }
 
+s48_value scx_Display_Select_Input(s48_value Xdisplay, s48_value Xwindow, 
+				   s48_value event_mask) {
+  XSelectInput(SCX_EXTRACT_DISPLAY(Xdisplay),
+	       SCX_EXTRACT_WINDOW(Xwindow),
+	       Symbols_To_Bits(event_mask, Event_Mask_Syms));
+}
+
 void scx_init_display(void) {
   S48_GC_PROTECT_GLOBAL(internal_after_function_binding);
   internal_after_function_binding = 
@@ -268,4 +275,5 @@ void scx_init_display(void) {
   S48_EXPORT_FUNCTION(scx_No_Op);
   S48_EXPORT_FUNCTION(scx_List_Depths);
   S48_EXPORT_FUNCTION(scx_List_Pixmap_Formats);
+  S48_EXPORT_FUNCTION(scx_Display_Select_Input);
 }
diff --git a/scheme/xlib/display.scm b/scheme/xlib/display.scm
index 95863b0..7f1b83c 100644
--- a/scheme/xlib/display.scm
+++ b/scheme/xlib/display.scm
@@ -299,3 +299,14 @@
    (lambda (display) 
      (display-wait-output display #f))))
 
+;; display-select-input requests that the X server report the events
+;; associated with the specified event mask. See XSelectInput.
+
+(define (display-select-input window event-mask)
+  (%display-select-input (display-Xdisplay (window-display window))
+			 (window-Xwindow window)
+			 event-mask))
+
+(import-lambda-definition %display-select-input (Xdisplay Xwindow Xevent-mask)
+  "scx_Display_Select_Input")
+