Count- the number of images in the list;
Bitmap - returns the system descriptor of the bitmap (of the hBitmap type), in which the system stores all the images in the list (from left to right);
Mask - returns the hBitmap of the monochrome bitmap mask for all images in the list;
ImgRect(i) - returns a rectangle that stores the image indicated by the index i in the common bitmap;
Overlay[i] - manages overdraw images (or modifiers). Index i = 1..15 allows to set the overlay number for each overlay modifier, assigning a value to this property informs the image with which index in the list of images the overlay is located. These modifiers can be used when displaying element states in the list view and tree view visual objects;