nChange

Value indicating the type(s) of change that has occurred. This can be one or more of the following, which may be combined using the "Or" operator.

Value

Meaning

CHANGE_NONE

No change

CHANGE_DIM

Dimensional change

CHANGE_DATA

Bitmap data change

CHANGE_PALETTE

Palette change

CHANGE_BACKGROUND

Background (gradient or pattern) changed

CHANGE_ANIMATION_PALETTE

Animation palette changed

CHANGE_LIST

Bitmap List changed

CHANGE_NEW_BITMAP

New image was loaded