Microsoft DirectX 9.0


The put_WindowStyleEx method sets the extended window styles on the video window.


HRESULT put_WindowStyleEx(
  long WindowStyleEx



[in] Specifies one or more flags from the GWL_EXSTYLE value of the Windows SetWindowLong function.

Return Values

Possible return values include the following:

Value Description
S_OK Success.
VFW_E_NOT_CONNECTED The video renderer filter is not connected.


This method is a thin wrapper over the SetWindowLong function and must be treated with care. In particular, you should retrieve the current styles and then add or remove flags. With some exceptions, flags allowed by the Windows CreateWindow function are acceptable. However, do not use this method to change the window size.

See Also