PAINTEFFECTDATA

typedef struct tagPAINTEFFECTDATA
{
   HWND hBitmapWindow;
   LBitmapWindow * pClass;
   L_UINT uPass;
   L_UINT uType;
} PAINTEFFECTDATA, * LPPAINTEFFECTDATA;

Member	Description
hBitmapWindow	Handle to the bitmap window.
pClass	Pointer to an LBitmapWindow object.
uPass	The number of completed passes.
uType	The type of effect. Possible values are:

	Value	Meaning
	EFX_NOTIFY_TRANSITION	painting a transition.
	EFX_NOTIFY_IMAGE	painting an image.