From 2a6213ad02cde6cda9939c604f9264fbe14c3a56 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Mon, 24 Feb 2014 22:49:30 -0800
Subject: [PATCH] Make sure we don't clip the cursor while clicking on the
 window title bar

---
 src/video/windows/SDL_windowsevents.c | 14 ++++++++++++++
 src/video/windows/SDL_windowswindow.c |  2 +-
 src/video/windows/SDL_windowswindow.h |  1 +
 3 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/video/windows/SDL_windowsevents.c b/src/video/windows/SDL_windowsevents.c
index a688ef091..b4e51a0bf 100644
--- a/src/video/windows/SDL_windowsevents.c
+++ b/src/video/windows/SDL_windowsevents.c
@@ -570,6 +570,20 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
         break;
 #endif /* WM_INPUTLANGCHANGE */
 
+    case WM_NCLBUTTONDOWN:
+        {
+            data->in_title_click = SDL_TRUE;
+            WIN_UpdateClipCursor(data->window);
+        }
+        break;
+
+    case WM_NCMOUSELEAVE:
+        {
+            data->in_title_click = SDL_FALSE;
+            WIN_UpdateClipCursor(data->window);
+        }
+        break;
+
     case WM_ENTERSIZEMOVE:
     case WM_ENTERMENULOOP:
         {
diff --git a/src/video/windows/SDL_windowswindow.c b/src/video/windows/SDL_windowswindow.c
index 98de45428..425b4da23 100644
--- a/src/video/windows/SDL_windowswindow.c
+++ b/src/video/windows/SDL_windowswindow.c
@@ -746,7 +746,7 @@ WIN_UpdateClipCursor(SDL_Window *window)
     SDL_Mouse *mouse = SDL_GetMouse();
 
     /* Don't clip the cursor while we're in the modal resize or move loop */
-    if (data->in_modal_loop) {
+    if (data->in_title_click || data->in_modal_loop) {
         ClipCursor(NULL);
         return;
     }
diff --git a/src/video/windows/SDL_windowswindow.h b/src/video/windows/SDL_windowswindow.h
index 99ae48878..c42888744 100644
--- a/src/video/windows/SDL_windowswindow.h
+++ b/src/video/windows/SDL_windowswindow.h
@@ -38,6 +38,7 @@ typedef struct
     SDL_bool created;
     WPARAM mouse_button_flags;
     BOOL expected_resize;
+    SDL_bool in_title_click;
     SDL_bool in_modal_loop;
     struct SDL_VideoData *videodata;
 #if SDL_VIDEO_OPENGL_EGL