From 83e2586f0b8bc319b6b5df35ffdc6df67943b5b5 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Tue, 26 Aug 2008 07:34:23 +0000
Subject: [PATCH] Fixed crash when tablet isn't detected properly

---
 src/events/SDL_mouse.c   | 5 +++++
 src/events/SDL_mouse_c.h | 9 ++++++---
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/src/events/SDL_mouse.c b/src/events/SDL_mouse.c
index 685fd18fd..682d24833 100644
--- a/src/events/SDL_mouse.c
+++ b/src/events/SDL_mouse.c
@@ -374,6 +374,11 @@ SDL_SendProximity(int id, int x, int y, int type)
     int index = SDL_GetMouseIndexId(id);
     SDL_Mouse *mouse = SDL_GetMouse(index);
     int posted = 0;
+
+    if (!mouse) {
+        return 0;
+    }
+
     last_x = x;
     last_y = y;
     if (SDL_ProcessEvents[type] == SDL_ENABLE) {
diff --git a/src/events/SDL_mouse_c.h b/src/events/SDL_mouse_c.h
index 2bd37506b..cc29eb5a4 100644
--- a/src/events/SDL_mouse_c.h
+++ b/src/events/SDL_mouse_c.h
@@ -112,15 +112,18 @@ extern void SDL_ResetMouse(int index);
 /* Set the mouse focus window */
 extern void SDL_SetMouseFocus(int id, SDL_WindowID windowID);
 
-/* Send a mouse motion event for a mouse at an index */
+/* Send a mouse motion event for a mouse */
 extern int SDL_SendMouseMotion(int id, int relative, int x, int y, int z);
 
-/* Send a mouse button event for a mouse at an index */
+/* Send a mouse button event for a mouse */
 extern int SDL_SendMouseButton(int id, Uint8 state, Uint8 button);
 
-/* Send a mouse wheel event for a mouse at an index */
+/* Send a mouse wheel event for a mouse */
 extern int SDL_SendMouseWheel(int id, int x, int y);
 
+/* Send a proximity event for a mouse */
+extern int SDL_SendProximity(int id, int x, int y, int type);
+
 /* Shutdown the mouse subsystem */
 extern void SDL_MouseQuit(void);