Re: WineX11.drv: create X11 window for client area 1/3

[Alexandre Julliard]

"Roderick Colenbrander"  writes:
> - {
> -
>    escape.drawable = X11DRV_get_client_window( top );
> -
>    if(!escape.drawable)
> -
>        escape.drawable = X11DRV_get_whole_window( top );

You shouldn't need that test, all windows should have a client window;
otherwise you have to tell the server about it too.
> +static Window create_client_window( Display *display, struct x11drv_win_data *data)
> +{
> - RECT rect = data->whole_rect;
> - XSetWindowAttributes attr;
> -
> - OffsetRect( &rect, -data->whole_rect.left, -data->whole_rect.top );
> - data->client_rect = rect;
> -
> - attr.event_mask = ExposureMask;
> - attr.bit_gravity = ForgetGravity;

ForgetGravity is wasteful, you should use NorthWestGravity and compute
the proper valid rects in SetWindowPos. ForgetGravity may be appropriate
for the non-client area though.
> @@ -1582,6 +1646,7 @@ void X11DRV_SetParent( HWND hwnd, HWND parent, HWND old_parent )
>      {
>          /* FIXME: we ignore errors since we can't really recover anyway */
>          create_whole_window( display, data, GetWindowLongW( hwnd, GWL_STYLE ) );
> -
>    create_client_window( display, data );

You need to destroy the client window in SetParent too.