windowscodecs: Do not assume that vtable is the first element of the object, avoid not necessary casts.

windowscodecs: Do not assume that vtable is the first element of the object, avoid not necessary casts.

windowscodecs: Do not assume that vtable is the first element of the object, avoid not necessary casts.

windowscodecs: Do not assume that vtable is the first element of the object, avoid not necessary casts.

windowscodecs: Do not assume that vtable is the first element of the object, avoid not necessary casts.

windowscodecs: Do not assume that vtable is the first element of the object, avoid not necessary casts.

windowscodecs: Do not assume that vtable is the first element of the object, avoid not necessary casts.

windowscodecs: Do not assume that vtable is the first element of the object, avoid not necessary casts.