The InitWB method allocates memory for the DirectSkin control. If you want to use any of the ocx functions before calling DoWindow then ensure you have called InitWB first.

If the method succeeds, the return value is a non-zero value.
If the method fails, the return value is zero.

This method is called after loading the skin [LoadUIS], and before starting DirectSkin Skinning [DoWindow]. DoWindow calls this function internally if you have not called it.

DoWindow, LoadUIS, UndoWB