[PATCH 0/2] MR5576: winex11: Avoid leaking foreign window data if it was already created.

[Rémi Bernon (＠rbernon)]

NtUserCreateWindowEx will call apply_window_pos and drivers
WindowPosChanging callback, which already creates window data.

[PATCH 1/2] winex11: Remove duplicated foreign window class string constant.

[Rémi Bernon]

From: Rémi Bernon

---
 dlls/winex11.drv/window.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/dlls/winex11.drv/window.c b/dlls/winex11.drv/window.c
index 68b34fa868d..e71b0150223 100644
--- a/dlls/winex11.drv/window.c
+++ b/dlls/winex11.drv/window.c
@@ -2176,7 +2176,6 @@ static struct x11drv_win_data *X11DRV_create_win_data( HWND hwnd, const RECT *wi
  */
 HWND create_foreign_window( Display *display, Window xwin )
 {
-    static const WCHAR classW[] = {'_','_','w','i','n','e','_','x','1','1','_','f','o','r','e','i','g','n','_','w','i','n','d','o','w',0};
     static BOOL class_registered;
     struct x11drv_win_data *data;
     HWND hwnd, parent;
@@ -2186,7 +2185,7 @@ HWND create_foreign_window( Display *display, Window xwin )
     unsigned int nchildren;
     XWindowAttributes attr;
     UINT style = WS_CLIPCHILDREN;
-    UNICODE_STRING class_name = RTL_CONSTANT_STRING( classW );
+    UNICODE_STRING class_name = RTL_CONSTANT_STRING( foreign_window_prop );

if (!class_registered)
     {
@@ -2196,7 +2195,7 @@ HWND create_foreign_window( Display *display, Window xwin )
         memset( &class, 0, sizeof(class) );
         class.cbSize        = sizeof(class);
         class.lpfnWndProc   = client_foreign_window_proc;
-        class.lpszClassName = classW;
+        class.lpszClassName = foreign_window_prop;
         if (!NtUserRegisterClassExWOW( &class, &class_name, &version, NULL, 0, 0, NULL ) &&
             RtlGetLastWin32Error() != ERROR_CLASS_ALREADY_EXISTS)
         {
@@ -2232,7 +2231,6 @@ HWND create_foreign_window( Display *display, Window xwin )
         pos.y = attr.y;
     }

-    RtlInitUnicodeString( &class_name, classW );
     hwnd = NtUserCreateWindowEx( 0, &class_name, &class_name, NULL, style, pos.x, pos.y,
                                  attr.width, attr.height, parent, 0, NULL, NULL, 0, NULL,
                                  0, FALSE );

[PATCH 2/2] winex11: Avoid leaking foreign window data if it was already created.

[Rémi Bernon]

From: Rémi Bernon

NtUserCreateWindowEx will call apply_window_pos and drivers
WindowPosChanging callback, which already creates window data.
---
 dlls/winex11.drv/window.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/dlls/winex11.drv/window.c b/dlls/winex11.drv/window.c
index e71b0150223..726ed354a64 100644
--- a/dlls/winex11.drv/window.c
+++ b/dlls/winex11.drv/window.c
@@ -2234,15 +2234,12 @@ HWND create_foreign_window( Display *display, Window xwin )
     hwnd = NtUserCreateWindowEx( 0, &class_name, &class_name, NULL, style, pos.x, pos.y,
                                  attr.width, attr.height, parent, 0, NULL, NULL, 0, NULL,
                                  0, FALSE );
-
-    if (!(data = alloc_win_data( display, hwnd )))
+    if (!(data = get_win_data( hwnd )))
     {
         NtUserDestroyWindow( hwnd );
         return 0;
     }
-    SetRect( &data->window_rect, pos.x, pos.y, pos.x + attr.width, pos.y + attr.height );
-    data->whole_rect = data->client_rect = data->window_rect;
-    data->whole_window = data->client_window = 0;
+    destroy_whole_window( data, FALSE );
     data->embedded = TRUE;
     data->mapped = TRUE;