Henri Verbeet : wined3d: Register a window only once.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 9a1fddb0fd8f0d5c2c8601a9eadfe7737598c007
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=9a1fddb0fd8f0d5c2c8601a9ea...

Author: Henri Verbeet <hverbeet(a)codeweavers.com>
Date:   Wed Nov 10 10:53:03 2010 +0100

wined3d: Register a window only once.

---

 dlls/wined3d/wined3d_main.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/dlls/wined3d/wined3d_main.c b/dlls/wined3d/wined3d_main.c
index 0932351..0e44702 100644
--- a/dlls/wined3d/wined3d_main.c
+++ b/dlls/wined3d/wined3d_main.c
@@ -422,6 +422,13 @@ BOOL wined3d_register_window(HWND window, IWineD3DDeviceImpl *device)
 
     wined3d_mutex_lock();
 
+    if (wined3d_find_wndproc(window))
+    {
+        wined3d_mutex_unlock();
+        WARN("Window %p is already registered with wined3d.\n", window);
+        return TRUE;
+    }
+
     if (wndproc_table.size == wndproc_table.count)
     {
         unsigned int new_size = max(1, wndproc_table.size * 2);